1982 Yamaha XJ 650

1982 Yamaha XJ 650

I have a problem with the idle speed when my 1982 XJ650 heats up. When I engage the clutch, the RPMs shoot up to about 3000-3500 and even higher. When the bike is cold, the idle is perfect. Once I ride it about 20 minutes or so, the problem starts.

Posted by andybosone7 on Sep 06, 2010

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1982 Yamaha XJ 650

Product Troubleshooting for 1982 Yamaha XJ 650


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Answers :


Hi, Hope this doesn't reach you too late. These bikes take some time to fully warm up. You can adjust the idle down by turning the knob between the #2 and #3 carburetors counterclockwise until you reach 1050rpm. Wear a glove or you will burn your hand!Ride the bike some more, and see if the idle stabilizes. If not, you may have a vacuum leak somewhere. A quick way to diagnose this is to take a propane torch (NOT LIT!) and run it around the carb boots and vacuum caps. If there is a change in rpm, then inspect the boots and caps for tightness and cracks.

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Having problems with your 1982 Yamaha XJ 650 ?

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