RE: 2003 YZF600R won´t idle poor performance

01 Yamaha YZF 600 R Thundercat discussion forum:


RE: 2003 YZF600R won´t idle poor performance

RE: 2003 YZF600R won´t idle poor performance 
Shawn Pomeroy said 2025-04-10 07:41 
 
Throttle shafts have wear and air leaking past. ***INTAKE LEAK*** KEIHEN used felt as a seal!!!!. Replace with o-rings. Something resistant to ethanol. REQUIRES COMPLETE TEARDOWN AND BUTTERFLIES REMOVED. Not too difficult if you´re handy with screwdrivers and regularly oiling your chain. If you can´t do either, then get a carburetor friend. Take pictures before removing complex assemblies. Have a large table available and give it a day or two to complete. Don´t rush you´ll get it. 
 
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