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vacuum leak?

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

Anonymous

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I have a 1981 gs 450l that i had a mechanic clean and sync the carbs...cycle ran great for about 200 miles....then all of a sudden it started cutting out on the highway...i tinkered with the clasps on the intake boots and it seemed to have worked...but it was still cutting out now and then...is this the location for the most likely vacuum leak(in the intake boots)? I purchased some intake boots from a salvage dealer so the ones on now are not new...i have a typical clasp that a guy would get from a gas station(silver ones that are used on radiators etc...) could this be a problem since its wider than the clasps that were originally on?
 
With the engine running, spray a little carb cleaner around the suspected leak areas, where the boots attach to the carbs and the head. If there's a leak, the engine will speed up.

You should use the correct width clamps.
 
vacuum leak

vacuum leak

thanks for the info...the web links were very helpful.....i'll try fixing them...
 
Hey, ya think those part numbers for the orings for your gs850 would be the same for a 79 gs750? Im thinking they are since its pretty much the same motor. I definitley need to take care of this on my bike... my idle is all over the place sometimes.
 
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