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View Full Version : 300ex reving too high



z04881
09-11-2007, 09:03 PM
I recently put a 05 300ex motor in my 97 300ex. I've messed with the carb and it still revs very high when started.

bwamos
09-12-2007, 05:34 AM
Sounds like an exhaust leak around the rubber manifold at the engine. Check that for a leak.

Aceman
09-12-2007, 06:29 PM
I think you mean intake leak. But it does sound like a lean condition, assuming your throttle cable is adjusted properly.

z04881
09-15-2007, 08:49 PM
I found the problem. when I adjusted the idle screw the cable was frayed and did not turn in the carb. thanks

bwamos
09-16-2007, 11:34 AM
Originally posted by Aceman
I think you mean intake leak.

Lol yea. I'm glad someone corrected me. Sometimes my brain thinks one thing and my hands type something completely different.


Glad to see the OP figured it out. Had that problem on my 400ex carb. Had to swap out the idle adjsutment cable for a new one.:)