Just pulled my plugs. Too lean??
#11
06-05-2013, 11:07 PM
heritageblue has a basic description of a plug chop. You ride the bike at a steady rpm for a bit, pull the clutch and hit the kill switch. Coast to a stop and pull the plugs on the spot to get the most accurate reading. This needs to be done at three different throttle positions: off-idle, mid throttle, and WFO to get an overall picture of your AFR. Also needs to be done with fairly fresh plugs. This is your guide to tuning a carburetor, but it can give you an idea if your EFI is working properly or you need to invest in a tuner. Plenty info on the interwebs on spark plug chop.
#12
06-05-2013, 11:11 PM
I'm not concerned about the condition of the bike, it is in great condition, at least externally. Just trying to get a feel for the engine health.
#13
06-05-2013, 11:12 PM
Same principle, the engine don't know if it's being fed by a carb or EFI. All it knows and responds to is AFR. Like I said though, tuning it is a whole different ballgame.
#14
06-05-2013, 11:13 PM
heritageblue has a basic description of a plug chop. You ride the bike at a steady rpm for a bit, pull the clutch and hit the kill switch. Coast to a stop and pull the plugs on the spot to get the most accurate reading. This needs to be done at three different throttle positions: off-idle, mid throttle, and WFO to get an overall picture of your AFR. Also needs to be done with fairly fresh plugs. This is your guide to tuning a carburetor, but it can give you an idea if your EFI is working properly or you need to invest in a tuner. Plenty info on the interwebs on spark plug chop.
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