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Help with plug chop pics

Posted: 01:56 pm Jan 06 2022
by cbittner72
Wondering on people’s opinion for attached pictures? This is a 152 main in 35mm carb at about 80 deg F. One side much darker and higher up than the other side. Bike seems to skip a bit WFO so trying to see if rich or lean.

Re: Help with plug chop pics

Posted: 04:19 pm Jan 06 2022
by KDXGarage
How long was it ran? Looks way lean to me, unless I am missing something.

Re: Help with plug chop pics

Posted: 08:23 pm Jan 06 2022
by cbittner72
Not long, I had enough hill to get up to 4th gear and maybe hold wide open for 5 seconds

Re: Help with plug chop pics

Posted: 09:32 pm Jan 06 2022
by SS109
Looks way lean to me as well.

Re: Help with plug chop pics

Posted: 12:03 am Jan 07 2022
by KDXGarage
pics stolen off the internets.

Here's what I wished my plugs looked like.

Image

a touch richer and safer if safety is needed. :-)

Image

too rich

Image

Re: Help with plug chop pics

Posted: 06:58 am Jan 07 2022
by cbittner72
Thanks, I’ll go back with 155 and do it again. May be a bit before I can get back on the bike to do it but will revert here. Any idea what or why one side seems rich and the other lean?

Re: Help with plug chop pics

Posted: 02:21 pm Jan 07 2022
by KDXGarage
Sorry, not sure on that. Maybe it didn't run long enough??

Re: Help with plug chop pics

Posted: 02:31 pm Jan 07 2022
by SS109
Did you make sure to pull the clutch and hit the kill switch when doing the chop?

Re: Help with plug chop pics

Posted: 06:55 pm Jan 07 2022
by cbittner72
SS109 wrote: 02:31 pm Jan 07 2022 Did you make sure to pull the clutch and hit the kill switch when doing the chop?
Yes sir