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Little Speedy
05-30-2005, 10:05 AM
Hey i've been looking for a 426 kit for my 400ex but i cant seem to find one.... can someone tell me where i can?
K_Fulk
05-30-2005, 10:46 AM
Just call any mtorcycle or atv shop and have them order you a 88mm piston and all the topend gaskets for a 400ex.
Little Speedy
05-31-2005, 01:32 PM
is an 88mm piston like a 426 kit?
YZ400EX
05-31-2005, 02:50 PM
Originally posted by Little Speedy
is an 88mm piston like a 426 kit?

That is the 426 kit..
Little Speedy
05-31-2005, 03:23 PM
o :D I would also need a Bore, Hone, ect right? does anybody have an estimate on how much that would cost? Thanks!
K_Fulk
05-31-2005, 09:03 PM
Probly around 100 for the piston, circlips and the new wrist pin. $25 for a topend gasket kit. And anywhere from $40 to 100 to bore your cylinder to 88mm, just depends on the shop.
Little Speedy
06-01-2005, 06:19 AM
alright thanks for all the help i think i have finally figured out what i want :) I really appreciate it.