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My gs550t is running only on 3 cylinders. Theres spark in every cyl, and the carbs were rebuilt last week. Im starting to think it may be something mechanically wrong like a valve seal or something not seating all the way. When i start the bike i can literally touch the cylinder #3 exhaust with my bare hand. Spark plugs dont seem fouled in either cylinder. Any help is greatly appreciated.
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When you rebuilt the carbs what was done? Did you follow the carb rebuild tutorial as linked in my signature? Hold the pilot jets up to a light to be sure they are open? Remove the pilot screws before dipping the carb bodies?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 -
Did you/someone who knows what they're doing clean/rebuild the carbs? Hang around here more than 30 minutes and you'll find many, many times not cleaning/rebuilding carbs properly is the problem.
Open up the bowl drain on 3, confirm it's getting fuel. If it isn't, check the float isn't stuck or incorrectly set.-Mal
"The only reason for time is so that everything doesn't happen at once." - B. Banzai
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78 GS750EComment
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I did this last night with every carb, i checked pilot jets and everything. The carbs were fully dissembled, soaked in chem dip and everything was replaced.Comment
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in another thread you mention needing shims....1983 GS 1100 ESD :DComment
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