piston

[quadinfamily]

i have a 300hp , it came with a 75 mm piston that has 4 cracks in it. I look everywhere with no luck,so this my last change to find one .Does anyone know if a honda piston will work?
thanks alot

 

[eff]

Where do you live? US?

It is the same piston as the EC 300 so any dealer should be able to supply the proper piston.

 

[quadinfamily]

stock one is 72mm and the biggest oversize is 73mm, this one 75.5mm i

 

[GMP]

There is no "oversize" piston for plated cylinders, just micro sizes for fine clearance adjustment.

It must be some odd big bore kit then. Maybe a snowmobile piston? What is shown is a piston for a motor with an exhaust bridge (the drilled lube holes), nothing like a stock GG300.

 

[jyellard]

Sounds like you should be looking for a new cylinder and piston!

 

[quadinfamily]

I found the right piston it's from 330 pro x big bore kit for a honda 250r ,and i do have stock cylinder and piston just a little to slow for my taste. 130.00 for piston and rings it cheaper too. thanks for help

 

[eff]

Glad you found what you need.

 

[gasgasman]

Hmmmm.......so a person can make his 300 (2 wheeler) a fire breathing 330?!

 

[Steve@Motowest]

i have a 300hp , it came with a 75 mm piston that has 4 cracks in it. I look everywhere with no luck,so this my last change to find one .Does anyone know if a honda piston will work?
thanks alot

You must not be the original owner, do you remember who you bought this quad from?

That may be one of our engines.

 

[PEB]

Steve,

I have one of those pistons in a stock size that came out of my current bike when I did my first top end. Does that imply I have a bike that you tuned as well? If so, what else did you do to it?

Paul B

 

[quadinfamily]

i bought the quad over the internet, I think from someone in KY .It was deliver to Alt Ga about a 2 year. If you think it one of yours let me know , I have a lot of question. give me a call 770 266 2787 thanks joe

 

[Steve@Motowest]

Steve,

I have one of those pistons in a stock size that came out of my current bike when I did my first top end. Does that imply I have a bike that you tuned as well? If so, what else did you do to it?

Paul B

Maybe, I need more information.

 

[PEB]

It is an 02 se 250 converted to a 300 at some point. It came to me with that piston in it. It has the 250 ignition box, crank stuffers, had the reed spacer in it. I think it was originally owned by a guy named something Zin in texas. I always was under the impression it was a smackover bike.

Paul B

 

[Steve@Motowest]

I found the right piston it's from 330 pro x big bore kit for a honda 250r ,and i do have stock cylinder and piston just a little to slow for my taste. 130.00 for piston and rings it cheaper too. thanks for help

You better look closely at the base gasket, if it's one of our engines it must have our custom spacer gasket. Measure the thickness of the one you pulled out.

 

[Steve@Motowest]

Steve,

I have one of those pistons in a stock size that came out of my current bike when I did my first top end. Does that imply I have a bike that you tuned as well? If so, what else did you do to it?

Paul B

Does that mean you are now using the stock GasGas piston without any problems? If so, then somebody just stuck a Honda piston in there, maybe because they couldn't get the correct one?

The pistons we use in our big-bore and long-rod kits look similar but will not fit in a stock engine.

 

[Steve@Motowest]

Hmmmm.......so a person can make his 300 (2 wheeler) a fire breathing 330?!

Hey Girard, our Stage 2 300 kit (non big-bore) adds 20hp at the back wheel.

 

[fury1]

how much does that kit cost steve?? does the bike still have the ability to run pump gas?

 

[Steve@Motowest]

how much does that kit cost steve?? does the bike still have the ability to run pump gas?

It was originally designed for the quads and included a pipe, which is no longer available but, we can still do the engine work for $1700.00. No pump gas.