Question about 2005 Yamaha YZF 600 R thunder cat

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Crank no start yzf 600r

Cleaned the carbs now will not start? cranks great getting spark getting fuel. any suggestions

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Inject some carb cleaner spray through the opened air filter while cranking.
Spark plugs work? timing on the camshafts ok?
Crank it without turning the throttle on.
Pull the choke cable if you need to.
It should fire up without throttle.
Use the carb cleaner spray to help it (don't spray too much.It will backfire from the carbs).

Posted on Jun 15, 2009


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Hi, Ktatejr86 and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
YZF600R Forums View topic Need Help Wont stay running
03 Yamaha YZF 600R wont stay running
Yamaha YZF600 YZF600R 1994 2007 Service Repair Manual PDF Download Manuals...
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Btw, I’m available to help over the phone in case u need at

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