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Flush Engine

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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I have a 1981 GS850. The petcock maulfunctioned, and when I turned the bike off, gas was pouring out of the carbs. First can you rebuild the petcock, if so, where would you get seals and such for it. If not, where can I buy a replacement?

Anyway, I drained the oil, and there was gas in it. I believe I should flush out the engine, but how would I do that, and with what liquids?
 
Bike bandit will probably have the rebuild parts needed, as will other suppliers, but you might consider a new Pingle unit, which is more reliable than the Suzuki unit. That said, your existing unit has likely done its job for 20 years or more, so it really is not a poor design.


Flushing is a good idea, but not really necessary, as that would entail starting the engine, which you do NOT want to do if there is gas in the oil.

Basically, all you need do is drain it, remove the filter, remove the oil filler cap, and let it sit for a while to let the last vapours evaporate.

You MUST change the oil filter.
 
Thanks for the info! Where would the filter be?? The bike is at my parents right now, and I want to make sure I can find it....
 
filter location

filter location

The cover for the oil filter is in the center lower front of the engine, behind the exhaust pipes. Mine has 5 dome-shaped nuts holding it in place. Probably want to replace the long squiggly 'O-ring'gasket in case it's cut or mashed. Don't lose the spring which will pop out with the old filter.

Same thing happened to me--I just changed the oil & filter and ran it. Any vapors or remaining gas will probably just be blown out of the case as soon as it warms up.
 
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