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Took a 50 mile pleasure ride today. I did take pics will try to post a few later. I've still got some carb issues I believe. When cold it idles well, but it's pretty lazy and surges at mid throttle between 2500 and 4000. Problem is much less pronounced after it gets warm but it's still there. After my ride with the bike still running at idle I used my temp gun to get a reading on the pipes. 2-4 were all at about 260, number 1 was around 350. Ya think 1 is running leaner than the others? Maybe still some undiscovered blockage in the carb? Any other ideas? It's got a 4-1 exhaust and I can't find a brand name on it anywhere. Generic I guess. Stock jets all around. No pods, stock airbox.
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A plug chop will tell the story, pack some gloves and a plug wrench and go do a few plug chops. -
Stock jets and a header = cooking the engine by running lean. Not as bad as pods though. Ever check the valves?Ed
To measure is to know.
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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-ResurrectionComment
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I had some concerns about the aftermarket exhaust. I seem to recall they left the factory on the lean side to begin with. I've been looking for a decent set of stock pipes but have found nothing. I'll do some plug reads and go from there. Probably wind up installing a stage 1 kit.Originally posted by Nessism View PostComment
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...and the valves?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-ResurrectionComment
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Dealer checked those when they did the carbs. Had to correct 2, don't remember which.Originally posted by Nessism View PostComment
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Sure they did.Originally posted by brownford View Post
What exactly did they say they did to the carburetors?Comment
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Dipped again, new pilot jets I think. I had a spare carb rack for parts and they used one of the those carbs for some reason. Whatever they did it worked, except for this surging. The warmer the air and engine is the better it runs.Originally posted by tkent02 View PostSure they did.
What exactly did they say they did to the carburetors?Comment
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Running better when warm is a good indicator of running lean.
Running a header with stock jets is a good source of running lean.
Having a dealer do your carbs and valves is highly questionable.
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mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
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Installed a Dynojet stage 1. Surging problem solved.Comment
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