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bogging badly, hardly accelerates

  • Thread starter Thread starter mdturner
  • Start date Start date
M

mdturner

Guest
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.
 
If you have garbage in the tank & it has clogged the fuel filter, it would do exactly what you are describing.
Ray.
 
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 tank
 
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.
 
jbthomp said:
Means it's too rich
Click to expand...

too rich, or not enough (any?) spark? I should probably start a different thread; didn't mean to hi-jack this one.:o 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.
 
mhobryan said:
too rich, or not enough (any?) spark? I should probably start a different thread; didn't mean to hi-jack this one.:o 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.
Click to expand...

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 badly
 
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