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Paul_Pitzonka Liked a reply to forum topic jetting/ plug reading help
7/27/2023 6:13pm
Same 2mm line tends to be optimal and the only correct way to read if a main jet is rich or lean is with a new plug and a plug chop. The tan color tends to appear on plugs that are run for a period of time.
This forum topic has 8 replies.
charleston john Added a reply to jetting/ plug reading help
7/27/2023 3:12pm That is the plug from running the 470 main jet. We are no where near pinning the throttle just don't want to burn it up.
charleston john Added a reply to jetting/ plug reading help
7/27/2023 3:09pm
FGR01 Liked a reply to forum topic jetting/ plug reading help
7/27/2023 2:32pm
Plug color reading and plug chops have minimal benefit for MX jetting. A wide open plug chop is only useful for setting the main jet. And the truth is we spend a small percentage of the time truly using the main jet on an MX track. Yes, I know some of you are going to say you are a true bad boy or you ride sand tracks and you are wide open 90% of the time, but if you had data collection you'd likely be shocked to see you're not. Also, things like fuel type, race gas, etc affect the...
This forum topic has 8 replies.
charleston john Added a reply to jetting/ plug reading help
7/27/2023 6:01am no i haven't cut any plugs. i was looking at the pics that are on the jetting guide and the "desired tan color" shown has the tan color all the way to the tip. question i have is the plug that has the tan color all the way to the tip a plug that has been run a while? i...
charleston john Started a new thread jetting/ plug reading help
7/26/2023 8:34am Short version first, trying to rejet 2018 YZ125. I’m using the instructions from “motocrosshideout” and everything is great till the end. The plug reading after going through the gears and hitting the kill switch. I pull the plug and there is no color change at all down in/on the porcelain. Its just as white as a brand new one. There...
This forum thread has 8 replies.