Question about Yamaha YZF-R1 Motorcycles
Hi, Tom and the usual suspects are:
1. Throttle cables improperly adjusted, pinched or need lubrication.
2. Idle adjusting screw needs to be backed off.
4. Air fuel mixture adjusted too lean start with 2 full turns.
5. Intake system air leak.
6. Fast idle choke ramp is not releasing.
7. Broken throttle return spring.
8. Damaged diaphragm or slide.
9. Faulty MAP, TPS, ATS, O2, sensors or wiring/connector
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04 R1 high idle when warm Biker ie Forums
OEM parts for Yamaha
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Posted on Sep 05, 2016
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Posted on Jan 02, 2017
SOURCE: Yamaha yzf-r1 power lost
Check spark plugs and leads. They can break down and fail when under load. If it is happening at idle then it is likely to be the plug leads themselves. Both are easily replaceable. If you have fitted anything new such as a new (Non-standard) exhaust you could have caused this problem, without your knowledge.
Posted on May 03, 2013
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