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one side is running hotter!

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dizcod Member
Posts: 17
Joined: Wed May 23, 2007 11:57 pm
Location: MPLS

one side is running hotter!

Post by dizcod » Fri Jul 20, 2007 5:52 pm

Hey guys, Need a little help on this one. Why would My cb77 be running hotter on the left side than the right side. I have an infared digital temp gun that I can get the temp off of each header pipe, right when it comes out of the engine. The right reads around 145-160 and the left reads around 170-185. The carbs are super clean and both have been rebuilt with new floats. Any help would be greatly appreciated. Thanks, Dizcod

piecutter Member
Posts: 326
Joined: Wed Aug 18, 2004 2:03 pm
Location: Maryland

Post by piecutter » Sat Jul 21, 2007 12:31 pm

Check for air leaks around the intake manifold by spraying carb cleaner on them while running. The rpms will change if there is an air leak. Sometimes this happens when the carb mounting screws are over tightened, causing the flange to warp. Also, of course check the basics. Slides are synchronized. Throttle adjustment screws are even. Mixture screws are evenly adjusted, if not it could be indicative of carb body passages not being completely clear of deposits.

PJay Member
Posts: 4
Joined: Wed Jan 10, 2007 6:09 pm
Location: Auckland, New Zealand

Post by PJay » Tue Aug 28, 2007 6:09 pm

The other end of life- try checking the ignition timings are identical, too...

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