Yamaha big bear 400 wont idle

Yamaha big bear 400 wont idle. Category. On the same account if I try and let it idle it seems to idle so low it just dies. Idle 4x4 wont jetting wayBear yamaha difficulties 2010 yamaha big bear 400 top end rebuild part 12003 yamaha big bear 400 atv. It doesn't do after I am going faster, only about 10 mph and under. May 22, 2012 · 2000 Yamaha Big Bear 400 Getting Stuck in Reverse By Gwbarm My Yamaha Big Bear shifts through all the gears good, goes into reverse smoothly, but when i go to get out of reverse it takes a lot of effort to get it back to first gear, and even then it does not go very smoothly, have to pull up on the pedal really hard, anyone else ever had this There are many reasons an ATV may be idling high. Now, pull the brake handle. Feb 5, 2023 · So I have a 2002 Yamaha Big Bear 400. I drained the tank cleaned it out, removed the carb tore it apart and cleaned it as well as a new plug. I also tend to open up the "starter" jet a little. After reconnecting the starter relay, the next step is to check the brake light relay. The battery shows to be 100% charged. It was running just fine before i hooked the snorkel up on it any ideas as to why this Screw the Idler Adjuster all the way in and and back up two full turns and a half, then adjust the accelerator cable until the Idle gets to the lowest point. In other words, ATV backfiring occurs due to a short, sudden instance when the engine is too lean or too rich. It will either immediately die or stumble. Previous owner thought it was a carb problem, so he ordered a new Zoom carb and new intake boot, but it still had the same high idle. Turn the throttle stop screw clockwise to increase idle, counterclockwise to decrease idle. Idle wont almost alreadyCk powersports Yamaha big bear 400 professional 2006 4x4 4wd no vat farm quad bike2001 yamaha big bear 400 oil Jan 13, 2019 · SOURCE: have a 04 yamaha big bear 400. I also have used fuel treatment. Now repeat the process and dont forget to check the master cylinder to add fluid while bleeding the system. Turn the ignition on your machine, push the brake, and then hit the start button. Dec 23, 2019 · Posted December 23, 2019. Now tighten the bleeder and release the lever. when i got home and garaged it for the evening i woke up to a hard start and rough idle Nov 11, 2013 · SOURCE: no front brakes on 95 yamaha big bear atv. Then close bleeder top off fluid and replace cap. when starting, especially cold, electronically it drags on the first stroke. I tore the whole carb down and it was all gunked up. The original 17. Got the bike brand new in July of 2009. If the engine dies, use the Idle Adjuster screw to keep it going. When its cold or has been sitting for long enough to cool down the bike starts up first try with no problem. 2. ive been told it could be due to high compression. Little cold natured, but starts easy enough on full choke, and as it warms up you can back the choke off to a normal idle. Assuming no spark, then check all the kill switches with an Ohmmeter to be sure each switch is working properly. Rather than rebuild carburetors, I got Caltric carburetors from Amazon. Inspecting your spark plugs can help diagnose the nature of the problem preventing your ATV from idling correctly. The symptoms are erratic idle (I had to idle it up so it will), and when throttled up it backfires and pops out the intake box and the exhaust with a little smoke that seems to be rich. When I push the start button, all that happens is the oil temp light flashes. It will start on half choke, run on half choke but when SOURCE: no front brakes on 95 yamaha big bear atv. Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. 6. 5 is 4KM-14142-17-00. Check Details. I am getting tired of it just sitting Sep 6, 2010 · senior motorcycle technician. Cleaned it in carb cleaner for days. I recently purchased a 1997 Kodiak 400 4x4 the bike had been sitting for about 2 or 3 years. Loosen the lock nut ans turn the screw all the way in then back it out till it gets tight then tighten the lock nut and that should solve your problem. the cam lobes facing away from the lifters. If the machine doesn’t start up right away, your starting problem could be a bad brake light relay. Hitting the throttle from idle, it will sometimes cough back through the carbwhich is another indication of fuel starvation. Dec 4, 2007 #2 Dec 11, 2015 · 2 posts · Joined 2015. #1 · Dec 7, 2007. Sounds like the carb could use a cleaning and setting by a professionalinstall a new plug and a new air filter. after working great all weekend today my big bear 400 wont start. is putting gas out thru the overflow hose on the bottom it quits when i throttle up the engine a lil bit but starts again when it returns to an idle . If you can pull-start the motor, and it runs fine, you have pretty much eliminated any problems with the motor. Sep 08, 2013 • K and N Yamaha Big Bear Yfm350fw Air May 7, 2005 · When you hit the throttle, your sucking crap up and cutting off your fuel. Apr 4, 2017 · Turn each one inward until it GENTLY seats. When I turn the switch on the relays are slow to click compared to normal. If I try to go anymore it coughs,sputters and backfires terribly. Hello all, I am new to this forum and joined in search of some answers. My notes also say Yamaha 3AJ-24534-01 and 3AC-24523-00-00 and plunger O ring 4mm id by 2mm thick are the seals needed. 5K views 1 year ago. Posted May 18, 2015. Dec 7, 2007 · 22 posts · Joined 2007. Jul 7, 2012 · ATV Racing & Events. Oct 21, 2015 · #1 · Oct 21, 2015. Pictures and Videos Board. 1995 Big Bear 350 4x4 --- 30" backs, 3" lift, stick Apr 22, 2010 · QUADCRAZY Classifieds. QUADCRAZY Classifieds. 18 in). It will crank with the choke on and has a very inconsistent Mar 19, 2016 · I have removed the carb again and cleaned the needle valve out and the whole of the carb just in case there where any dirt behind it. It will start back up after a few pulls ( battery is shot, waiting for a new one to come it) but then Sep 24, 2010 · Definitely DO NOT run this engine in its present condition. Posted by Anonymous on May 30, 2012. Not uncommon for older carbed bikes/quads. My 01 660 was running fine. Hey there everyone. #1 · Dec 11, 2015. 2007-2012 Yamaha big bear 400 4x4 irs service manual. Hi, first time user here. I cleaned the carb, made sure all the jets were clear, changed the plug and drained all the old gas out. Nov 28, 2012 · Posted November 28, 2012. The pilot jet should be #45, the main jet should be #140. Sometimes it will die when idling. when I dropped the carb bowl. Dec 7, 2020 · The Big Bear 400 had a plugged primary jet and would not idle unless choke is on. Sometimes a switch goes bad. Cannot get it to start with the hand brake or pull rope either. Jul 13, 2010 · My buddy has a big bear 400 that is spitting back through the carb at idle and just above idle. Jul 21, 2008 · Hey BC, did you get her going. Frequent Issues with Carburetor. May 24, 2015 • Yamaha 2007 Big Bear 400 IRS 5-Speed 4X4 Most newer engines use an electronic ignition system, if the spark is weak verified at night (in the dark) by removing the spark boot and watching the arc jump onto the engine block, then this could be your problem. It wasn't running right and had a high idle. Check Details Yamaha big bear 400 wont idle. could be a 99 or 01, i'll find out for sure) big bear 400 that had a bad starter. Compression was low at 105psi, leading me to replace the piston and rings. 1994 Big Bear 400 4x4 --- 28" laws, hl 2in lift, stick stoppers, snorkel. I've cleaned the carb several times. I was riding it earlier and it was operating normally, then it suddenly cut out/stalled (no sputtering, just instantly died). I put it in neutral, green neutral light is lit, but it wont crank. it will rev up with the choke closed but as I said it just May 20, 2012 · nick_386 Discussion starter. It is helpful to number them mentally for this. An ATV idling high should not be left unresolved. Having acarb isuue w/beartracker ,will only idle w/choke out. when I got it the bike had been parked with fuel in it and just left. Share. After the replacement, compression improved to 125psi. Dec 6, 2022 · How do you set the idle on a 2003 Yamaha Big Bear 400? To set the idle, adjust the carburetor. Try the pilot jet first. Recently my grizz has been popping/backfiring back through the carb at low rpms. Apr 18, 2014 · have a 2000 big bear 400, It has been sitting for a while due to my rear boot tearing and the bearings going out in the rear axel. ran great, snorkeled it and tuned the snorkel so no mixture adjustment was necessary. You should see the three wires of the same color running out of the stator to the connector. When I finished it started right up and sounded great. If it doesn't run with the starting fluid then you probably don't have any spark and you have to start looking elsewhere. If there is no pressure or has bleed down, the master cylinder is kaput. 4) Start it with the choke on and put your hand over the air filter hole. A few customers complained about the 2003 Yamaha Big Bear 400’s carburetor problem. We we cleaned the carb including the jets, adjusted the air screw from 2 and a half out to 3 turns out and nothing changed. Bogs at Middle Throttle; 5. If I hold the throttle open about 1/8-1/4 inch it runs great. Jul 12, 2014 · 2001 big bear 400 backfiring and popping. or higher!!. I just put a brand new battery in it and starter solenoid. The bike hasn't been running to my knowledge for 4-5 months. It was idling too high. Jan 9, 2013 · There should be an adjustment screw on the right crankcase cover. You’re going to place the meter leads to the pins in the connector. 79– Brake pedal free play adjustment 1. I rebuilt carb and cleaned countless times. 400 will sit and idle fine and come just off idle but will not rev up any higher have cleaned carb thinkin spark issues as it acts like a rev limiter and if u give it more throttle just starts to flood out. Posted on May 01, 2010. A healthy spark plug should have a light brown, milk chocolate-like color. it wasn't long before the bike was difficult to start. On the left side of the vehicle, looking in at the carburetor, notice a screw pointing straight down near the bottom of the carb, slightly forward. any read more. Sounds like you have developed a air leak somewhere, you shouldn't have to rejet your carb just "all of a sudden" unless you moved from sea level to the high mountains - 8,000ft. Replaced it, then found that there was no spark. Apr 13, 2009 · 03 Kodiak 400 Stalling Out. Apr 13, 2014 · 2008 Yamaha Big Bear 400 I. 2) Turn off the petcock and drain the carb. Yamaha big bear 400 wont idle. Sep 24, 2016 · My big Bear sputters at half throttle only. Nov 6, 2015 · The problem is it is running so badly it won't stay running at an idle. I figure this has to be a carb problem but hoping someone can pinpoint exactly what to look for/replace. It only has 16 miles on it and looks like new. thanks! Nov 4, 2020 · Big bear400 cant get to shift to natural. comYamaha big bear 400 wont idle. I checkedn the boots for cracks and air leakage but found the prob. If it stumbles, the idle is ok, but sometimes it hiccups again and dies. Meaning that the engine is receiving less fuel than it requires Nov 29, 2023 · Yamaha big bear 400 (2009-2010) specs, performance & photosWheelers lifted atv atvs hitch dirtbikes Auctiontime. I put a new tranny and clutch and carrier bearings in it so I was ready to go riding after all the time and money I have in it. The choke isn't stuck, all passages have been thoroughly cleaned and the diaphragm is working correctly. Posted April 24, 2011. It starts and idles like it is brand new. It wont idle with the choke in the "off" position even with the engine fully Jan 30, 2019 · SOURCE: yamaha big bear 400 will Sounds like a problem with the starter, could be a starter fuse, relay or solenoid. turn it back on. Throttle stop screw. It will do it if its idling, or if Im driving it. I have an 01, and it started doing this. Have an 01 ultramatric. Both suffered black plug. There will be a number stamped on the side of the jets. Could there be aproblem with the choke. May 17, 2008 · When the motor is up to operating temperature, set your idle speed screw to a stable idle. Dec 10, 2022 · Why won't your 1990 Chevy idle? 1990 gmc p/u 5. #1. It does this sitting still or moving so I do not suspect wiring. Gas in Air Box ; Which Year Yamaha Big Bear 400 Has the Most Problems? Tips for Buying a Used Yamaha Big Bear 400; Yamaha Big Bear 400 Users Feedback/Reviews; Technical Aspects of Yamaha Big Bear 400 Mar 11, 2009 · Current Bike (s):1981 Yamaha XS400 Special 2. I noticed a strong gas smell, took cover off air box and found 2 inches of gas in the box. I cleaned the plug and it would run fine for a few days, then I had to clean it again. Andone might be sticking. ”. Jul 12, 2014 · Posted July 12, 2014 (edited) Hi, I have a Big Bear 400 that Im working on for a friend. Apr 21, 2023 · Yamaha big bear 400 wont idle. 7 wont idle showing code 12 What would cause a 2003 Pontiac sunfire to die when it comes to a stop The idle goes all the way to zero and dies. Feb 20, 2015 · Hello All, I am new to the forums and in search of an answer. For a while I did not mind and used the pull start, now I want to get it fixed. First, Make sure that you have a correct air filter in the machine. Oct 22, 2015 · 2008 Yamaha Big Bear 400 I. Hi I'm a new user in desperate need of help. 4wheeler nut Rookie. Posted August 14, 2010. Owner just rode it 2 times and sat in storage for 4 years. My 91 Big bear will only idle on half choke. Basically, she'll start up fine and idle around 1500-2000 rpm (full choke) but upon going to 1/2 choke or giving her any throttle, she dies. Apr 20, 2012 · SOURCE: no front brakes on 95 yamaha big bear atv. Can't get to WOT, won't make it past just off idle unless the choke is on. I don't remember the circumstances. Runs great at higher RPM no cut out or missing. Dec 3, 2011 · Yamaha ATV Forum. Sep 6, 2014 · 1. i have an 07 big bear 400 4x4 will 500miles on it, we recently got a snow storm and after plowing the driveway i went out to go play in it. Have a friend kick the bike while you watch for spark. sounds like your mixture was leaned out because ur filter was cloged up making it run rich so was adjusted by screwing air screw out, now uv cleaned it, adjust it to make mixture richer by screwing back in until runs smotherly. 4KM-14142-20-00. Be the first to answer Apr 07, 2014 • Yamaha 2007 Big Bear 400 IRS 5-Speed 4X4 yamaha big bear 400 wont idel and the red revers light blinks - Yamaha 2007 Big Bear 400 IRS 5-Speed question. I'm working on a 400 big bear and I can't seem to get it to idle right. A higher than normal idle does not mean that you Apr 24, 2011 · 54. The main jet controls 3/4-full throttle only. Loosen bleeder, squeeze brake lever slowly until pulled all the way in. 44 posts · Joined 2006. I went thru the whole carb twice, float Nov 30, 2008 · grizzlyhunter660 Discussion starter. Oct 7, 2013 · differential rear yoke repair The yoke on rear differential broke I need to know how to replace it. It hangs for a moment and then drops down to idle speed. #1 · Oct 8, 2011 (Edited by Moderator) I've been fighting carb issues, had a stuck needle, and was leaking fuel as fast as it went in, got that fixed, and now it will start fine, idle ok but as soon as I try to give it any gas, it dies. Nov 22, 2009 · Yamaha. Some attempts it fires up for a second and then dies while other attepts it just cranks. Then use either your idle fuel or air screw to obtain a stable idle. Mar 28, 2010 · Starts and idles good but then backfires and sputters when given throttle. I have tried everything to try and stop the fuel leaking out the overflow but its still happening. Its best to bleed the breaks with 2 people makes it much easier. ) After dropping back down to idle speed, I get a backfire or "hiccup" through the intake track and carb. THE PROBLEM: After my ATV warms up it takes a few trys to get it to start, once its started it runs fine. 2003 Grizzly 660. I need to figure out how to clean/fix or replace my neutral switch assembly On my 2008 Yamaha big bear 400 as generally the neutral light doesn’t come on when it is in neutral. Allowing an ATV to idle too high could lead to premature wear and tear. I know its in neutral because it will roll. Sep 27, 2013 · Posted September 27, 2013. 25"x10"x12" Maxxis Bighorns / SS108's on all Corners Ricochet Skid Plates / Custom Floorboard Skid Plates Custom Receiver Hitch Warn XT30 / Custom Mounting Plate & Hook Catch Rigid Industries Dually LED Lights & HID's Custom Front Rack / Drop-Basket Rear Rack-----1997 Kodiak 400 Dec 10, 2023 · Background: My Big Bear was running fine not too long ago, but it unexpectedly cut out on me. Turn the adjusting nut on the brake rod adjustment until the free play is 20–30 mm (0. When you turn on the key, the green light and the red light should light up, then the red light goes out after a few seconds, but the green light should stay on. #2 · Nov 10, 2018. EBU13052 Brake pedal and rear brake lever 2. After all that you should just about have a new machine and you should be able to do it all yourself if you are mechanically inclined. The engine idle rpm also plays a role in good shifting. In the process of figuring that out, they jumped it off a car trying to start it, then found the starter was bad. Jul 27, 2019 · Backfiring occurs when one (or more) spark plug in the ATV engine ignites the fuel when it’s out of turn in the chamber, and the exhaust valve on the cylinder is open. Feb 17, 2012 · 1508 Answers. Good morning all. It is best to adjust the idle while at operating temperature Dec 6, 2019 · 2008 Yamaha Big Bear 400 neutral light not working most of the time. Sep 20, 2019 · 7 posts · Joined 2019. 43 posts · Joined 2012. I own a 2008 Big Bear 4x4- A year ago when I purchased the quad, it started fine, and then eventually the electric start stopped working. after putting it back together it would not May 18, 2014 · The O ring on the plunger can be replaced or sometimes just turned over and the seat cleaned up. Fully loosen the adjusting nut on the brake cable. Does fine at idle and full throttle. Replaced all o-rings and reassembled. The machine starts very easily at all times Mar 12, 2013 · Check your front and rear differential fluids. The one for the Big Bear was $39 and the TRX $42. crack open the bleeder screw and let the brake fluid drip until no bubbles. It runs great but the carb seems to be needed some kind of adjustment. The motor will bog out with too much air if no filter restriction. ) After revving the bike, it takes a while to return to idle. Could it be the idle jet id clogged again some how? It pushes the carb out of the intake hose after it spits back 4 or 5 times. I was given the bike after it was laid up for a year or more under a car port. there is an assignable cause for the backfiring and the exhaust getting red hot . com: 2000 yamaha big bear 400 parts. It's just dirty in the carb I think. #1 · Nov 30, 2008. Either way, best thing to do is remove the cable altogether and get rid of that stupid lockout. A few months ago it started dry fouling the plug. Also you will want to try to get all your adjustments done on a hot engine. How to Adjust Idle Yamaha Grizzly 350 400 450 ATVs. My buddy has a 2000 (i believe. Oct 20, 2014 · A low battery can kill spark. These are the most common symptoms of Yamaha Big Bear 400 problems: 1. The carbs are made in China. I noticed the The Big Bear was not right during a snow day this year. Clean the air filter and starter plunger. Top speed if you have stock tires should be pushing about 67 or so. Mar 29, 2011 · Sometimes races, sometimes just cuts out. 01 big bear 400 cranking issues. My Yamaha Blaster wont idle? under the seat where the throdle screws in the carb, there is an Mar 16, 2010 · This winter gremlins have entered my garage both my drz and big bear are having jetting issues. Start is defi Aug 19, 2007 · 1. Another thing you can do is try a shot of starting fluid. Aug 14, 2010 · 2. I recently acquired a Yamaha Big Bear 400 don't know anything about its ownership history wear and tear my first four wheeler ever. Well after about 15 min after running through that mud hole, they were goofing around riding a little fast over some ruff terrain, then all of a sudden it started stalling out around 1/4 throttle, my first thought was some water somewhere where it should not have been tore a few things apart and put some di-electric Feb 21, 2018 · 2016 Kodiak non EPS. Frequent Issues with Carburetor; 2. #1 · Sep 20, 2019. make sure the pison is on top dead centre (look through the small timing plug hole down the bottom) There is a punch mark on each cam sprocket that aligns with the cylnder head surface. It won't idle unless i have the choke on just a little. 3. When I got my four wheeler the throttle cable was stuck wide open and the choke cables broke off so I just went ahead and replace the cables and the carburetor. It is located on the side of the carb, requires a 12mm wrench to remove, and the nut is black plastic. Posted March 11, 2009. If you are pressing the foot brake, then the cable could be broken or stretched. If you are pushing the start button and it cranks intermittently, you may have a bad switch or a bad solenoid. Mar 31, 2018 · First thanks for any help guys, new to the forums and it's gotten me this far. New wheel bearings may be in order and cleaning out the clutch. I have re-built the carb, replaced ignition coil, new plug, new plug cap, cleaned gas tank, fresh gas (obviously. Back each one out one and one half turns. Posted December 24, 2010. Sounds and feels like you turn off the key and then right back on. 3) Try it. My neutral light has stopped coming on and the bike will not start. Engine now runs fine again but fuel has started to run out the carb overflow again. Submitted. Oct 8, 2011 · 5 posts · Joined 2011. To get it to come on I have to wiggle the foot shifter and hold it in just the right spot. Prior to my purchase the previous owner, a friend, said he cleaned the carbs. I have a 2003 yamaha big bear 400 4x4 and recently rebuilt the motor. You’ll test each combination of pins. Yamaha sat for two years cleaned carb and gas tank idles fine but when it warms up it back fires thru carb what might be worng it is a atv big bear 350 1987 500 miles Check valve adjustment. Turn the multimeter to ohms. Additionally, a malfunctioning carburetor might cause the automobile to operate Dec 31, 2018 · Posted on Jan 05, 2019. 08 Big Bear 400 - Engine cuts out at idle and low RPM. Submitter. If compression may be to blame, what should it be? when cranking manually, it seems effortless. May 25, 2017 · That is the shark fin looking thing on the front of the air box lid. It seems to do it worse when its cold. Nov 8, 2012 · That way when it gets warmer out, it'll be real close. Among these reasons are a carburetor leak, throttle cable placement, idle screw setting, clogged pilot jet, and many more. You can start to rev it up and o ce it hits a certain RPM it hangs there Oct 7, 2014 · Atv big bear 350 won't idle after cleaning. :smooch: My warrior runs good now. They expressed dissatisfaction because one of the needles was entirely gone. com/ Yamaha kodiak 400 wont start refers to when the all-terrain vehicle will not start up or activate and begin to work. Remove the spark plugs and have a good look at them. RED HOT Yamaha big bear 400 4x4 motorcycles for sale2001 yamaha big bear 400 oil capacity Yamaha big bear 400 carburetor diagramAmazon. Yamaha big bear 400 2 inch lift kitLifted yamaha big bear 4x4 Bear big yamaha 2000Yamaha big bear 400 specs. 5", tires itp Nov 10, 2018 · 5712 posts · Joined 2013. I have cleaned the air filter, adjusted the valves, changes the gas and tried to clean the carb. even after the motor is nice and hot it won't start without getting o Dec 4, 2007 · I need to know how to adjust the idle on a 1999 Yamaha Big Bear 400. Stalls when at Idle. Checked fuel, spark plug, and coil – confirmed spark. Remove the choke plunger from the carburetor and see if it is still hooked up and moving on the cable like its supposed too. Difficult to Start; 3. If it runs for a few seconds with the starting fluid and then dies you definately have a fuel problem. Scott Sirr. I bought a 2001 bear tracker 250 for my family to get around the dirt bikes races. May 10, 2022 · 8. It also does it sometimes when I let off the throttle. Also, no cracks in the boot. I'm working on a big bear 400. Sounds like that should solve the problem. As the engine is running and you have your hand cupped over the opening, press the throttle to see if the popping gets worse Disconnect the stator cable. We all assume that something fried Sep 25, 2018 · https://www. #1 · May 20, 2012. R. This video outlines factory procedures for adjusting idle speed on the following 2007 2008 2009 2010 Yamaha Big Bear 400 Problems . 4. make sure fluid is always full. I check valve clearance, timing, spark, fuel flow to carb. Apr 25, 2014 · 02 Big Bear 400- Hi-idle & backfires while running. Oct 21, 2009 · Few days ago I purchased a 2005 Yamaha Kodiak 450. Aug 2, 2020 · You must first press and hold the foot brake before being able to shift into reverse. Yamaha big bear 1997, lift kit 3", rear wheel spacers 2. It is an 02 big bear 400 2wd. Yamaha big bear 400 4x4 irs (2010-2011) specs, performance & photosRatings reviews Yamaha big bear 400 auction results in north vernon, indiana2008 yamaha big bear 400 irs $3,000 possible trade. Jump to Latest Follow 9K views Dec 24, 2010 · 11. Choke on and it would rev with the throttle. The start cicuit wiring could also be damaged. it will not start now without hitting the gas. Sep 15, 2014 · Kodiak Wont Run At Full Throttle. This is known as “parasitic amperage draw. Test for spark by grounding the threads of the plug against the cylinder. It starts, runs for a bit, then suddenly stalls. Next check for dirt or water in the main jet of the carb. Here's what I've done so far: 1. The selector seal can also be replaced. Yamaha Grizzly 700 Starting Problems Troubleshooting Test #5. So I bought a new plug and that seemed to work until recently. The longest Ive gotten it to run is about 20 seconds. Also checked boot from carb to cylinder. gravity bleed. I have a 2000 big bear 400 4x4 that i just installed a snorkel on and now the carb. It is slow to come down from high rpms and will "cough" back when the rpms do come down. Apr 6, 2010 · Having acarb isuue w/beartracker ,will only idle w/choke. Tried cleaning carb & air filter, drained bowl & cleaned with carb cleaner. No signs of use, everything is clean. May 18, 2015 · 7. If your battery is in good health and holds its charge when not connected to the ATV, but it’s being drained overnight when connected, and the ATV is just sitting with everything in off-position, something is drawing current. Mar 17, 2012 · Posted March 17, 2012. View File. hard to start wont. I have a 1997 big Bear 350, bought new in 97 with no modifications. Aug 18, 2019 · Posted August 18, 2019. So the quad was running good, then I went to ride it one day and it would not run unless the choke was on. What causes bad idles and spits back through carb and exhuast - Answered by a verified Motorcycle Mechanic. Nov 21, 2019 · SOURCE: have a 04 yamaha big bear 400. I pulled the seat off, and jumped the solenoid, and it cranks, but it wont start. 1) Check for water in the gas. The plunger may need to be rebuilt or replaced. even with a new battery it still struggles. (that is the largest jet hanging the lowest in the carb bowl with the largest hole in it. . 2005 big bear 400 4x4. 2002 yamaha big bear will start with the pull rope but when I push the start button to start it the netual and reverse lights get very dim. 25"x10"x12" Maxxis Bighorns / SS108's on all Corners Ricochet Skid Plates / Custom Floorboard Skid Plates Custom Receiver Hitch Warn XT30 / Custom Mounting Plate & Hook Catch Rigid Industries Dually LED Lights & HID's Custom Front Rack / Drop-Basket Rear Rack-----1997 Kodiak 400 Nov 22, 2023 · Mdu resources surplus auction2003 yamaha big bear 400 4x4 $2,000 or best offer Yamaha big bear 400 4x4 irs (2010-2011) specs, performance & photosMagneto stator ignition coil for yamaha big bear 400 2000 2001 2002. . Kawasaki 43049-1066 supposedly fits. However, I've had great success with them in numerous applications. Something drains the battery overnight. I need to know what the factory base setting for the air screw is. I recently got it out and tried to get it running. I took off the carbs for inspection and cleaning. 12/22/2019. Father in law picked up a used 2000 BB400 4x2 - motor runs well, no smoking. If I hit the gas with choke off, it would just die, not rev. I had a weed seed in my jet :wtf: How it got there is one thing but my bike started ,idled, but die as soon as I hit the throttle. A black, dry, and sooty-looking spark plug may indicate a rich fuel mixture. Front Brakes Get Stuck; 4. Otherwise, you have a carburetor issue which is very common in ATVs. SOURCE: set the timing on a yamaha 250 bruin 4-wheeler. Check the pilot and main jet sizes. 911manual. S. If you give it gas or push in choke it dies ,float seems to be adjusted correctly. I just bought the quad this weekend, the air screw was set 1/4 turn from closed. Did anyone get any ideas? I also put a used FMF pipe on it and know I need to re-jet it. YFM40FBW. Reset the idle speed screw as necessary after obtaining the correct idle mixture. Big Bear 400 idle and acceleration prob. 1. ah ob pu ou cp sm az xk hb je