piston bearing

[Bill Lemans]

My son blew the wrist pin bearing in his eton last weekend. It has the Airsal T6 cylinder kit and came with the wrist pin bearing. Anyone know where to get another bearing quickly ?

What plug are you guys running with this set up ?

I managed to save the head(i think) by turning it on the lathe. Only took about .015 off of bottom and tapered part of the combustion chamber. I'm gonna add a thicker gasket and hope she works.

Anyone comment on the effects of the squish band after doing this ?


Thanx

[WOLFPACK]

What cc are you running? It is a 10mm or 12mm pin?

Shane

[Bill Lemans]

10mm in a 70cc

[WOLFPACK]

See next post!
Shane

[WOLFPACK]

You can order one from Yamaha. The part number you need should be 93310-210M0-00. It costs about $11.00.

NGK BPR7HIX is what we prefer to run.

You never know what the effect will be until you try. If you know how to measure squish you may want to try to run the same gasket as before. It could be an improvement.

Shane

[Bill Lemans]

Thanx Wolfpack.

I'll check the squish , but while it's apart , i'm gonna deck the cylinder a bit to get some more low end. It looks like there's aleast 1/8 -3/16 between the top of the piston and the head.