Proper piston for 2002 EG RM 144?

[robwbright]

I just emailed Eric Gorr about this, but I'm not sure how often he gets to review and answer, so I thought someone might know the answer here.

I want to do the top end on my Eric Gorr 2002 RM 144.

Which piston is correct?

846M05800 (not on Eric's website that I can see)

830MO5800 (on Eric's website listed for the 04-07 RM)

9316MO5801 (on Eric's website for "8 brands of dirt bikes and nearly 100 models dating from 1989.")

It would seem that the 9316MO5801 would be the pick of the 3, but I could've sworn that Eric recommended the 846MO05800 before I broke my wrist.

Thanks

 

[robwbright]

Found the answer here - finally - the piston is 846MO5800, not 846M05800. I was searching for the wrong thing.

http://www.dirtrider.net/forums3/showthread.php?t=131980&highlight=846MO5800

"Hi Rob, Wiseco has a new piston in their catalog with the part number 846MO5800 and its the 144 piston for the YZ but it has the closest dimensions to the piston that I've been selling since 1992."