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can anyone tell me if the petcock vent hose on an 81gs1000gl has anything to do with fuel getting to the #2 carb. Sporadic firing on that cylinder and ignition and compression tests were okay. lots of vacuum on the hose at petcock end too.
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If the petcock fails it can dump fuel down the vacuum line and into #2 carb. There is TONS of info about this in the archives so do a search if you need more info.Ed
To measure is to know.
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Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection -
New petcock time!1983 GS850G, Cosmos Blue.
2005 KLR685, Aztec Pink - Turd II.3, the ReReReTurdening
2015 Yamaha FJ-09, Magma Red Power Corrupts...
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Hi,
There's not really anything called a "petcock vent hose". There are two lines, a fuel line and a vacuum line. Have a look here...
Where Do These Hoses Go?
Thank you for your your indulgence,
BassCliffComment
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Rebuild Kit
I tried a K&L petcock rebuild kit and had only limited success. Something in the K&L kit is not quite right and the petcock didn't work. Soaked it in carb cleaner and gently cleaned the rubber goods (diaphragm), o-ring, etc. I did use a couple of rubber parts out of the K&L kit and got it working correctly.
Excessive fuel in number 2 can also be caused by the seat and needle in the carb or improper float height. Keep tinking!Comment
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Here Here!!!!Originally posted by bwringer View Post1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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