KDXRIDER.NET

Hello
So I gave my son my 02 kdx 220 he purchased a top end kit and we did our first top end together. Just curious what do you guys think of spark plug. After heat cycle did a couple short rides no wot test just took plug out too look at it. Compression test 138psi

looks a bit too clean for a few short rides

Now that you have a fresh top end I would run through the jetting guide and disregard that plug. Get it jetted right and do some plug chops to really know how things are.

It was a brand new plug as well . Yes I should do a couple chop test... but it doesn't look lean does it.

does it seem to be running hot at all?

the insulator looks a little glazed to me

By the way what gas and oil are you using and what ratio?