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well it wasnt the carbs...its a vac leak

  • Thread starter Thread starter gs850cafe
  • Start date Start date
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gs850cafe

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so if you have kept up with me you know what my bike is doing...

i re-dipped the carbs for the 2nd time...

i fired it up today an it idled at 4k rpm...so i idled it down...allll they way down...sprayed some staring fluid around carbs an it revved up...

also noticed a valve cover leak..it there any common places these bikes can leak? around choke area etc?
 
Could be o-rings under the carb. holders attach to engine, can get a set cheap from cycle-o-rings. Also be sure you airbox is sealed well, look on Basscliff site for lots of suggestions. terrylee
 
Could be o-rings under the carb. holders attach to engine, can get a set cheap from cycle-o-rings. Also be sure you airbox is sealed well, look on Basscliff site for lots of suggestions. terrylee

done all that...but now i recall, when i first got this bike goin it was harder to start an old diesel in -25 degree weather...

ive got all new o-ring seal airbox etc...only thing thats not new is the rubber carb holders...but there nice an squishy
 
You can't blame me for not warning all the newbies to replace their intake pipe boot O-rings. The instructions are in the carb rebuild tutorial and in the Newbie Mistakes thread. I sleep well knowing I've tried.
 
You can't blame me for not warning all the newbies to replace their intake pipe boot O-rings. The instructions are in the carb rebuild tutorial and in the Newbie Mistakes thread. I sleep well knowing I've tried.

just said i did..ill sum it up...

all new oring for cycle oring, dipped carbs (complete disasembled,all jets etc out), new airbox boots, sealed airbox(from cliffs site) adjusted valves, synced carbs (carbtune), a/f screws set (hihgest idle) all electrical checked+cleaned.
 
just said i did..ill sum it up...

all new oring for cycle oring, dipped carbs (complete disasembled,all jets etc out), new airbox boots, sealed airbox(from cliffs site) adjusted valves, synced carbs (carbtune), a/f screws set (hihgest idle) all electrical checked+cleaned.

i mean all im asking is if these bikes have an issue leaking from somewhere easily...not what i didnt do...im not tryin to be a smartass either
 
When you sprayed, did you use something to direct the spray to specific areas? If not, go back to it with the little hose and take your time. Your leak is probably still around the boots somewhere. Maybe one or more of the synch ports?
 
Order new intake manifolds. Just because you changed the orings doesn't mean the manifolds aren't bad. Test them by spraying the starting fluid around them. Just in SMALL shots mind you! If they AREN'T leaking, you have a vacuum leak somewhere in the carbs. Ray.
 
Alot of times the intake pipes will crack. Between the metal mounting flange and the rubber. Your pipes will stillbe soft and squishy as you stated but still be leaking
 
Alot of times the intake pipes will crack. Between the metal mounting flange and the rubber. Your pipes will stillbe soft and squishy as you stated but still be leaking

ok thanks guys, ill check it out today
 
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