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does any one know were i might be able to get a standard 76mm piston for my 300r atc engine or an equivalent piston? please any help just point me in the right direction. thank you,charles from lasvegas.:confused:

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I believe service honda can get hondaline parts. If they can't find it, or our resident trike expert MWKE can't help you then I have another idea as a last resort. I don't want to send you to another forum if I don't have to, but I know a guy who can probably find what you need.

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does any one know were i might be able to get a standard 76mm piston for my 300r atc engine or an equivalent piston? please any help just point me in the right direction. thank you,charles from lasvegas.:confused:

What yr is your R.???? The 300Rs were normally the Aircooled First Generations 81-84 and were really 290cc....But 300 sounds mucho Bettero:laugh::yes:


Hondaline.....offered these and are realy hard to find parts for....I remember several yrs ago...A guy I know got ahold of Wiesco,,,,they said they would make them as long as they had a run of 24 or more.....Didnt happen.....

Everyone I know goes here....

Honda Big Bore Kits for Dirt Bikes, ATVs, and Street Motorcycles

I think you will find that you will have to bump it up to a 310 and add some Spacer Plates to make this work....

Hope this helps....

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