Condensation will accumulate in the vacuum line. Don't mistake that for back flowing of fuel. My old mercury sync gauge used clear tubes and quite a lot of condensation would be visible in those tubes.
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Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection -
Air is also choking off the fuel at low RPM's and that disconnecting the vacuum line to synch the carbs made it run nice.Either way it looks like the petcock is the problem.Comment
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With some discussion it's been decided to get this http://www.ebay.ca/itm/291675152778?...%3AMEBIDX%3AIT petcock rebuild kit.Yes I can see the
going.I just want to keep a stock petcock and $300+ is just to much to spend.Don't really what to do the futzing around to put a 750/850 one in either.With every thing on mine in pretty good shape this should work.Going to take special care on the O ring seat.
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I know that people on here have had less than sterling results with rebuild kits, but I used a kit on mine years ago and it is still working fine.
With some discussion it's been decided to get this http://www.ebay.ca/itm/291675152778?...%3AMEBIDX%3AIT petcock rebuild kit.Yes I can see the going.I just want to keep a stock petcock and $300+ is just to much to spend.Don't really what to do the futzing around to put a 750/850 one in either.With every thing on mine in pretty good shape this should work.Going to take special care on the O ring seat.82 gs1100e FAUX Skunk
80 gs1000sComment
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Hi SVSooke,
I just PM'd you about the OEM petcock.Comment
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Well I managed to get the 83 750 petcock hooked up wit a bit more fuel line than I would like but on just idling it's already way better.Off for a ride!
Still going to get the rebuild kit for the 1000 petcock but I just want to enjoy the riding weather
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No such luck,the 750 petcock seems to do exactly the same thing as to 1000 one
Back to waiting
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Have you tried running it set to prime - with and without the vacuum line attached? Blocked when not attached of course...Comment
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No big surprise,the rebuilt petcock dumped 1/2 a tank of gas into the engine caseYes right though brand new neddles and seats in the carbs
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probably ran down the vacuum tube and NOT thru the carbs...as thats the usual route if the floats are seating the needles correctly.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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