So here it is. 1981 gs750 with uni pods, stage 3 dynojet kit. Did the valves last week, replaced carb o rings last month. Last week it started having some power loss, I thought the tune was off so I tweaked that but no changes. Today it got incredibly worse and can barely accelerate from stop without dying. It feels like a major vacuum leak but I can't find a crack on the boots. I have an inline fuel filter which I put in when I did the carbs o rings. No idea what's happening since it's gotten progressively worse and not just a sudden fail.
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Stock exhaust? Checked the plugs? What are the jet sizes used with stage 3?GS\'s since 1982: 55OMZ, 550ES, 750ET, (2) 1100ET\'s, 1100S, 1150ES. Current ride is an 83 Katana. Wifes bike is an 84 GS 1150ES -
If you have garbage in the tank & it has clogged the fuel filter, it would do exactly what you are describing.
Ray.Comment
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I'll check the filter tomorrow. I took it around the block earlier and it was much better again but still bogging a little so I wouldn't doubt it. Time to clean the tankComment
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try running it on prime , might be a failing petcockComment
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Check the plugs and see if any are black.
Might be a leaking petcock or a leaking float valve. My 850GL had sudden power loss and it turned out to be a bad float and bad ORIGINAL petcock. Very lean and very rich act similarly.http://img633.imageshack.us/img633/811/douMvs.jpg
1980 GS1000GT (Daily rider with a 1983 1100G engine)
1998 Honda ST1100 (Daily long distance rider)
1982 GS850GLZ (Daily rider when the weather is crap)
Darn, with so many daily riders it's hard to decide which one to jump on next.;)
JTGS850GL aka Julius
GS Resource Greetings
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yes, start your own thread so you problem can be addressed accurately after
You go up to the top and read the sticky about your bike running badly1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
My #3 is consistently black/sooty looking, the other three look perfect, and this is after a complete carb rebuild, re-Oring, carb sync, valve adjustment.
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