16 races, that many, and more mx practice rides, three trips to Jawbone (50 miles+), four or five dune rides and I don't know how many others.
Washed the bike, rode around the block a bit to get her warm for a compression test.
Only blew 100 psi. :( shortly after I got her back with fresh rings from T2 it was at 140 psi. cold.
Later on I'll match the before and now pics as I get them done.
Ring end gaps measure .023, was .018 at T2 time.
I'd say I gotten a fair amount of seat time from this top end. I'll try and find out what the cylinder to wall clearance is before its bored.
Pics so far;



Ams Dominator @ 50:1. He asked, :bonk:
You can really see where the bridge and the decompression grooves are.
Now.


Now


Q500 asked about running 80:1 cause he knows that I have ran 100:1 in the 250's
Hadn't really thought of that, now you mention it. 50:1 for the first gallon or two.
The marks left by the rings is not oil left behind, there actually one to two thou deep. :bash: Why is that?

Quite a bit of wear on the bridge, Yeah just cut it out, it'll be ok.




Quote from Iggy F451 on Jun 1st, 2007, 5:27pm:
The marks left by the rings is not oil left behind, there actually one to two thou deep. Why is that?
Too lean with the oil/fuel ratio? -Ellet
89.75mm bore.

