Help with piston
- Thread starter BIaster
- Start date
is there a needle bearing missing on the lower connecting rod?
the pic kinda looks like the crank bearing is toast??
check it i cant really tell from pic but it stood out to me
never mind the damage to the cylinder top end
the pic kinda looks like the crank bearing is toast??
check it i cant really tell from pic but it stood out to me
never mind the damage to the cylinder top end
Thought it was the crank bearing, but theres no up and down movement, The guy I bought it from said it was bored .40, but the cylinder doesnt look honed out. Im gonna get the Hot Rods Top and Bottom End kit, aswell as a new cylinder.is there a needle bearing missing on the lower connecting rod?
the pic kinda looks like the crank bearing is toast??
check it i cant really tell from pic but it stood out to me
never mind the damage to the cylinder top end
View attachment 32275
Little info about your set up. Oil injection or pre mix? Kind of oil? Jetting,/ mods? Temps?
Looks a lot like lack of oil. Pics of piston top and inside of the cylinder?
Down load service manual.
Looks a lot like lack of oil. Pics of piston top and inside of the cylinder?
Down load service manual.
Newer to this stuff, it has a oil block off, I mix 32:1 Klutz. The oil actually looks richer then I would have thought. I will take pictures of the piston its a Namura.
Inside the cylinder
Attachments
Is it Klots with bean oil ? What's the temperature where you're at?least Had you been riding for a while or did it stop shortly after starting it?
Actually wanted pic of crown/top side of piston , but lack of grey ash on underneath shows crown wasn't overheated.
I haven't figured out how to cut/paste with this tablet, but search "Two stroke piston diagnosis" good pics of different failures.
Actually wanted pic of crown/top side of piston , but lack of grey ash on underneath shows crown wasn't overheated.
I haven't figured out how to cut/paste with this tablet, but search "Two stroke piston diagnosis" good pics of different failures.
By looks of iron liner at bottom there's plenty of "meat' for boring. ONLY bore enough to clean it up. Nothing gained by going Max bore
Blaster has sent me a couple of messages about this problem.
PO said recently rebuilt top end. Now wondering if it might be a Nice cylinder and not oil problem. Or new piston old bore.
Don't know how to ID a stock or Niche cylinder. I know Ken has a Utube vid on on stock, Vito's, CT, Airsal ID, but that was before junk cylinder came around.
PO said recently rebuilt top end. Now wondering if it might be a Nice cylinder and not oil problem. Or new piston old bore.
Don't know how to ID a stock or Niche cylinder. I know Ken has a Utube vid on on stock, Vito's, CT, Airsal ID, but that was before junk cylinder came around.
Im thinking the guy said it was a new top end, piston looks new I'm thinking he never broke it in. May the be a concern? You think I can put this back together until I order the Vito's big bore with 3 mm crank kit. It rips still, just has the top end vibration.
So is getting a Vito's kit worth it?i believe you are talking about this one
Similar threads
