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White Smoke From Top of Head

  • Thread starter Thread starter sanfranciscoave
  • Start date Start date
S

sanfranciscoave

Guest
Hey guys, I just finished doing a complete engine rebuild of my 1981 GS650E and now after the engine gets warm, some starts to come out of the top of the engine (cam shaft cover). I also noticed very small bubbles (I'm guessing of air, I don't really know) coming from the gasket under the cam shaft cover. This is not only my first build but this is my first motorcycle as well so I really have no idea why its smoking. What do you guys think? Thank you!
 
Did you install the cam cover gasket dry? If you sprayed it with wd40 or something that may explain a little. I soaked mine in hopes of getting it off easier next time and possibly reusing it. It was kind of juicy for a little bit but dry now. Oh, what kind of gasket was it?
 
Remember these are air cooled engines, so if you're running them in the summer and letting them sit they can quickly overheat.

Also, if you're re-built the engine there is a lot of additional bedding in and associated friction with components like piston rings that will add to the heat factor.
 
I put the cam cover in dry. I live in the SF bay area and it hasn't been that hot here. Today was 74 degrees and i had the bike on for about 15 minutes while I was trying to liquid sync the carbs. should I just leave everything as it is and then see if it still smokes once I'm riding it on the road?
 
That's a long time to have the bike idling - did you have a fan on the motor?

Just ride it and see how it goes.
 
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