Yamaha ATVs - Popular Questions, Answers, Tips & Manuals

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Yamaha Big Bear 400 4x4 IRS ATV. How to fix flashing red brake light on it please?

Question edited for clarity. Question moved to model category. It is a Speed Sensor issue. https://www.google.com/search?q=yamaha+big+bear+flashing+red+brake+light+on+dashboard ..
1/9/2024 10:09:42 PM • Yamaha 2008 Big... • 34 views • 0 helpful votes
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Yamaha Big Bear 400 is running rich, it runs good at high speed but loads up at idle. Not sure where the mixture screw is located on the carburetor? It's a Mikuni BSR33.

Question edited for clarity and add maker. Question moved to a Big Bear category. Chat GPT4 Answer from AI Bot 'Gerry' deleted. Mikuni tuning in the link. The screw is under the intake bell. https://www.google.com/search?q=mikuni+bsr33+carburetor+tuning ..
9/27/2023 3:50:49 PM • Yamaha 2005 Big... • 63 views • 1 helpful votes
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Child's Yamaha raptor 700 battery powered toy

Could be fuel starvation caused by dirt in the filter/carburettor etc.
7/3/2023 12:01:48 PM • Yamaha 2006... • 51 views • 0 helpful votes
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2004 Yamaha Kodiak 400 ATV. It does not start. The starter clicks like a car battery does when battery is drained. A new battery lasted only a month or so.

Get a battery tender to put on the battery when you aren't using it to keep it fully charged. Check battery connections and grounds. Check the starter relay plus the starter and solenoid. Call an auto electrician. The videos may help diagnosis.
4/20/2023 9:25:43 PM • Yamaha 2004... • 121 views • 0 helpful votes
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My 1997 yamaha timberwolf 250

The cold weather may cause your Yamaha Timberwolf to experience hard starting, several months and no use, or a stale fuel supply. Start by replacing the spark plug, if the engine still does not fire up, clean the carburetor and make sure all the hoses are connected tightly with no air leaks. If none of these strategies work, the carburetor may need to be adjusted or replaced. You may want to take it to an experienced mechanic if you are unable to get the engine started.
2/6/2023 4:01:18 PM • Yamaha 2004... • 185 views • 0 helpful votes
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2005 Yamaha Bruin 350 ATV. What will cause my ATV not to run? Gas is coming from drain tube?

Question edited for clarity. Question moved from motorcycles to ATV model category. Turning over has nothing to do with the carburetor! Your battery is flat. It will need charging. If the carb is leaking, it is because the float is set wrong or the float valve needle isn't seating properly. Engines only need three things to run. A supply of clean fresh fuel (not sitting a year) A Spark at the right time. Compression. You say you cleaned the carb **in** carb cleaner, as opposed to *with* carb cleaner. Did you strip it down, check the float for holes, clean the jets and needles?
11/27/2022 8:31:44 PM • Yamaha 2005... • 259 views • 0 helpful votes
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Atv 300 over heats with radiator full of anti freeze,

ATV IS NOT A CAR NOR IS ATV A MAKER IS THIS A YAMAHA WHY SKIP SAYING MAKERS NAME/? RAD FULL OF MUD (AS IN FINS) THERMOSTAT IS BAD. SORRY CAN NOT GUESS ATV AT ALL, AND 300 SAYS ONLY ENGINE SIZE, TO ME. 300CC
1/18/2023 5:22:27 PM • Yamaha 2012... • 48 views • 0 helpful votes
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I have a Yamaha big bear 350 4x4 I put new cv axis on both front still make grinding sound

If the CV Joints are new and correctly inserted, the most likely culprit for the noise would be the brakes. Remove the front wheels and turn the hub. It could also be the front differential, or failed wheel bearings. Details in the link. https://www.google.com/search?q=Yamaha+big+bear+350+4x4%2C+front+wheels+grinding+noise ..
10/19/2022 7:47:00 PM • Yamaha 2005 Big... • 126 views • 0 helpful votes
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Where is the oil temp sending unit located for the fan on a 1998 kodiack 400

https://www.manualslib.com/manual/828205/Yamaha-Yfm400far.html
11/10/2022 2:09:10 PM • Yamaha 2004... • 42 views • 0 helpful votes
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No crank from ignition key or relay?

not car moved you to ATV
10/9/2022 8:40:47 PM • Yamaha 2007... • 54 views • 0 helpful votes
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I start my Yamaha Banshee 350 ATV, it starts fine and idles fine but when I start riding it and gets a bit over half throttle it starts backfiring really bad. Any suggestions on what to look for? TIA

Question edited for FULL 'make model (what it is)', from 'banshee'. Question moved from Motorcycles to correct Category. Check spark plugs. Clean Carb. Check timing. More here, it is a known issue. https://www.google.com/search?q=Yamaha+banshee+atv+backfires ..
8/10/2022 12:35:44 AM • Yamaha 2005... • 186 views • 0 helpful votes
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2004 YAMAHA YFZ 450 Quad POPS OVERHEATS BREAKS UP AT HIGH RPM.

Question edited for full 'year make model (what it is). Question moved from motorcycles to make model category. Please don't type in all CAPS, it is considered SHOUTING and is harder to read. 'clips' and 'turns' it took me a while to realise you were talking about the carburetor and you were playing with the mixture screw and needle position! 4 turns out is a lot different to the factory setting which is 1 1/2 turns out. If it is overheating it is running too lean. As you changed the stator, also consider the ignition timing. Popping can also be caused by the ignition failing under load, coil, lead and spark plug. Carburetor and tuning. https://www.google.com/search?q=2004+yamaha+yfz+450+carburetor+adjustment This carb has a LOT of jets! https://www.amazon.ca/Carburetor-Rebuild-Yamaha-YFZ450-2004-2009/dp/B07JNYP667 ....
7/19/2022 3:01:56 PM • Yamaha 2006 YFZ... • 218 views • 1 helpful votes
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How do I clear fault codes on d62. shows 1

NOT CAR, MOVED TO ATV BUY THE SHOP SERVICE MANUAL FROM YAMAHAMMER.
7/27/2022 7:02:26 PM • Yamaha 2011... • 82 views • 0 helpful votes
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2000 Yamaha KODIAK 4WD (YFM400FAM). I have to jump relay, then jump start relay, then it starts.

Question edited for clarity. Question moved to model category. Just replace the relays. They are cheap! https://www.google.com/search?q=2000+Yamaha+Kodiak+replacement+relays ..
5/1/2022 9:10:17 PM • Yamaha 2004... • 80 views • 0 helpful votes
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2004 Yamaha Bruin 350 ATV would not shut off!

Question edited for clarity. Add maker. Question moved to Yamaha Bruin category. Likely to be a fault with the ignition switch Karen. There is help in the link. https://www.google.com/search?q=2004+Bruin+350+won%27t+switch+off ..
3/21/2022 5:34:49 PM • Yamaha 2004... • 106 views • 1 helpful votes
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2021 Yamaha Wolverine RMAX4 1000 UTV. I bought one with a inclinometer app. What is the angle degree that it will flip over?

Question edited for clarity, full make model (what is is). Question moved from 'Office Equipment' to Yamaha sub category. All mentioned here. I would stick with 33.1 degrees. https://www.wolverineforums.com/threads/tilt-to-roll-over-degree.29718/ https://www.google.com/search?q=2021+4max+1000%2C+tip+over+angle ..
4/6/2022 10:18:01 PM • Yamaha 2009... • 56 views • 0 helpful votes
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I have a kodiak 450 had no power to start no lights found the main fuse blown replaced it started up ran great drove 300 yards blew the main fuse again replaced the fuse blew instantly

Need to inspect wiring going to main power for wire shaffing you have a direct short to the frame some were
10/29/2019 7:29:46 PM • Yamaha 2005... • 1,324 views • 0 helpful votes
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2002 Yamaha Kodiak 400 will not hold low idle.

get a colortune tool.it shows how your firing.read instructions that come with,so simple to tune carb in with.sounds like pilot out of adjustment.could also have a leak in ur carb boot or head.take a torch without lighting open valve with motor running run torch around gaskets and front of carb boot listen for change in motor.if it gets higher rev uve found a leak.
10/17/2019 11:52:35 AM • Yamaha 2004... • 1,305 views • 0 helpful votes
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I have a 1996 Yamaha Timberwolf 250 2 wheel drive when you put it in first gear forward or reverse all it will do is Click just started doing it was running just fine what could it be

We need a little more details... what/where is clicking..is the engine running when the clicking happens.. more details
10/22/2019 10:03:45 PM • Yamaha 2004... • 1,014 views • 1 helpful votes
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