Hondaline 300 owners please respond [Archive]

KASEY

07-06-2010, 11:24 PM

ok i need a little info... i found a box of pistons,, that are aircooled big bore . what is the piston size of the 300 kit standard?

greenhuman

07-07-2010, 01:06 AM

75mm. The Helm and Son big bore pistons were 73mm - 74mm.

Doppler

07-07-2010, 02:08 AM

I'm pretty sure the stock Hondaline piston was 76mm

greenhuman

07-07-2010, 02:21 AM

Could be right too. Its been a while.

D-dub

07-07-2010, 11:38 PM

Doppler is correct