piston indetify

[94supercam]

Hi, I'm new to bansheeHQ. I just got a banshee an love it so far, exept I was riding yesterday an the motor locked up. I tore it apart and both pistons were melted on the exhaust side. The right side was worse then the left. Would this be caused by a lean condition? The plugs were like a tan but more white than tan so I figured it was lean.

Also on top of the piston crown it reads "0423E". Anyone know what kind of piston it is an what bore? The piston seems to be forged an not cast.

 

Thanks

Ryan H.

[blowit]

Hi, I'm new to bansheeHQ. I just got a banshee an love it so far, exept I was riding yesterday an the motor locked up. I tore it apart and both pistons were melted on the exhaust side. The right side was worse then the left. Would this be caused by a lean condition? The plugs were like a tan but more white than tan so I figured it was lean.

Also on top of the piston crown it reads "0423E". Anyone know what kind of piston it is an what bore? The piston seems to be forged an not cast.

 

Thanks

Ryan H.

 

 

The numbers do not ring a bell. The correct numbers should be in the center of the dome. Yes, you have detonation from either lean, too much timing, or too much compression for a given fuel. You can measure your bore or piston to determine what you have for size. You can also post soms pics of the piston and I can tell you what you have. You will need to find out why your motor popped before repairing it.

 

 

Brandon

[94supercam]

The numbers do not ring a bell. The correct numbers should be in the center of the dome. Yes, you have detonation from either lean, too much timing, or too much compression for a given fuel. You can measure your bore or piston to determine what you have for size. You can also post soms pics of the piston and I can tell you what you have. You will need to find out why your motor popped before repairing it.

Brandon

 

I'll try an get pics asap. I also noticed that when the motor locked up i heard the antifreeze in the head boiling. It wasnt boiling out of the overflow but I heard it in the head?

thanks Ryan H.

[94supercam]

Also, are stock cylinders seperate? Like not 1 peice? It has the numbers "R172" It looks like cheetah cylinders?

Edited November 19, 2007 by 94supercam

[94supercam]

I cleaned off the piston an found more numbers but their not to clear. I the center of the crown I found "9768m" and under that is "68 00"

Thanks

 

 

Also, are stock cylinders seperate? Like not 1 peice? It has the numbers "R172" It looks like cheetah cylinders?

[blowit]

I cleaned off the piston an found more numbers but their not to clear. I the center of the crown I found "9768m" and under that is "68 00"

Thanks

 

 

Would seem you are working with a 68mm cheatah but get some more info and pics and that will help.

 

 

Brandon

[94supercam]

Woking on the pics guys, Also how do I measure the crank or rods to see if its a stroker crank? Do I have to remove the crank?

Later