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Bike is running Rich

  • Thread starter Thread starter mbradford99
  • Start date Start date
M

mbradford99

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I have a V&H 4 to 1 header on my GS1100e. I have not had the carbs apart to look at the jetting.
I am having a problem with the plugs fouling with a rich condition.
I have adjusted valves. the question I have with a 4-1 header and stock jets would the bike run lean or rich ?

If lean, then what should I look at next ?
 
mbradford99 said:
I have a V&H 4 to 1 header on my GS1100e. I have not had the carbs apart to look at the jetting.
I am having a problem with the plugs fouling with a rich condition.
I have adjusted valves. the question I have with a 4-1 header and stock jets would the bike run lean or rich ?

If lean, then what should I look at next ?
Click to expand...

Most likely lean or little to no effect.

Stage two kit or you may get away with bumping the jet needles up a bit.
 
So what would cause a rich condition ? ignition ? wires ? help .......:confused:

also, what would going 1 plug hotter do ? or could that possibly solve the issue ?
 
Have you done any carb work on it? How long had it been sitting before you bought it and put it back on the road? Possibly you have old gummy fuel deposits in the carb bowls causing your floats to stick (1 or more carbs, do a plug chop to find out which cylinder) or even bad float valves allowing fuel to leak by when they should be closed. More people will chime in here with more things to look at shortly, I'm sure.
 
Also have you verified that the petcock is working correctly? Did the bike come with the 4-1? Was it rejetted for the pipe and maybe didn't need to be? Pods? Over oiled air filter?
 
have had bike since July. It came with the 4to1, I have not done any carb work at all.
It has new petcock, that I installed. stock filter (New) no air leaks that I can see or tell.
 
Look at jetting, float levels, fuel levels, intake system, all of it. Anything can effect this. I had one where the PO had stuffed steel wool into the collector of the 4-1, it ran very rich, and would only do about 50 mph, on a long down hill straight. Start by pulling the carbs to see what's inside.

It's very likely someone "jetted" it for the pipe without any knowledge of jetting, went way too far, got things way too rich.
 
mbradford99 said:
also, what would going 1 plug hotter do ? or could that possibly solve the issue ?
Click to expand...
You could put hotter plugs in, but you would just be putting a Band-aid on top of a Band-aid.
Much better to fix the real problem and use the proper plugs.

.
 
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