Questions & Answers for: Yamaha YZ 450 F take off problem choking

engine cutting out with the choke off i have a 2006 yamaha yzf450 and the engine cuts out while the choke is off. but when i turn the choke on it runs good but the idle is high even after the engine ...

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Question about 2003 YZ 450 F

2 Answers

2003 yzf450 wont run right? Dies when given throttle... runs with choke on, dies when choke is off.... backfires... already cleaned plug and carb.... knock in the motor.... Cleaned air filter. Any ...

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Question about 2004 YZ 450 F

1 Answer

...small metal bits kicked out, likely from edge of acumulator - engine started to run away - shut off - now will not start - and the choke 'feels' loose. I use pull start - after 3-4 pumps it ...

...be just a dirty or failing radiator cap. My bike will push a little out if I completely top it off full. Hope this helps. hi maybe the ign timeing or valve timeing is out or the bike is running ...

Question about 2004 YZ 450 F

1 Answer

...must be held wide open to start. and will only start with choke on, will not idle....if I let off the gas it dies even while riding. feels like i have to ride it like a 2stroke. CHeck if there ...

...i start the atv with the choke it stays on , but when the atv is started without the choke it shuts off. My atv is a Yamaha grizzly The choke should only be used when starting cold. After the bike is ...

Question about 2004 YZ 450 F

1 Answer

...when starting bike,also must use choke to turn bike on, if choke is reduced bike will turn off Your carb or carbs need cleaned. Remove them from the bike and disasemble them completly and ...

Question about 2004 YZ 450 F

1 Answer

...HAVE AN OLDER YAMAHA 490 DIRTBIKE WHEN I TRY TO ADJUST THE JETS IT REVS UP AND IN ORDER TO SHUT IT OFF I HAVE TO CHOKE IT WHY IS IT DOING THAT ? Are you turning the idle screw or the smaller inset ...

My 2003 yamaha yz450f will back fire the whole time when i stop giving gas, with choke on or off and if i put choke off it dies there may be a problem with the exhaust valves first check and adjust ...

...old gas put fresh gas through it. It doesn't backfire under choke, but when you take the choke off it backfires Sounds like you need to service the carbs as it sounds like your bike is starved

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