Need Help

[Motocrossguy17]

Hi im needing some advice i took the cyclinder head of my quad and the barrel and piston is covered in black oil or black powder . also my reed cage is broken so i need new ones so deciding just to wait until next year to get out on it so going to get all my upgrades also it has a bigger bore piston as its a big f*cker!lol

 

[blasterdemon7]

The black stuff sounds like a lot of carbon build up. Pics would help. You may have a BBK. Pics of the outside of the jug would help also.

 

[Motocrossguy17]

The black stuff sounds like a lot of carbon build up. Pics would help. You may have a BBK. Pics of the outside of the jug would help also.

will do man il be back in abit

 

[Motocrossguy17]

The black stuff sounds like a lot of carbon build up. Pics would help. You may have a BBK. Pics of the outside of the jug would help also.

alright mate the barrel is actually fine. but the piston looks like its burnt on top. it is defo not a standard size its ART piston ever heard of them?

play in wrist pin bearing i think or is this much movement normal?

 

[doodleaddict]

I'm
not seeing anything besides a phillips head bolt in that picture

 

[blasterdemon7]

That's just carbon build up. The piston will have flat side to side movement . Any up and down play in the pin is bad.

 

[Motocrossguy17]

That's just carbon build up. The piston will have flat side to side movement . Any up and down play in the pin is bad.

quality man you ever heard of art Pistons? iv not lol i will be putting a wiseco piston in it in the next few months anyway I:I but quad is stripped bare engine is lying on my bench for rebuild should have it finished by next march and be out

 

[motoman159]

You got a dial caliper?

 

[Motocrossguy17]

You got a dial caliper?

a what? lol never heard of it dude.

 

[motoman159]

To measure your pistion,lol

 

[Motocrossguy17]

To measure your pistion,lol

aww lol i haven't man im going to get the right tools within the next few months