husqvarna 2100

[abebengolf]

A guy gave me an old husqvarna 2100, it had a scored piston so I bought an el-cheapo gulf piston and put it in, the arrow on the piston which points to the exaust also has the ring alingment pins on that side, so I put it in that way and it ran but in after thought I didn't think it was right so I switched it because I've never seen a saw with the ring ends on the exaust side.
Would like to see some expert advice on this and this is the place

 

[turtle561]

i just had mine apart too and the pins were on the exhaust side with the arrow. i put it back that way.i can't see any pins in the intake or exhaust so i'm happy.
i don't know if the wrist pin is offset on these. maybe someone else can fill us in on that.

 

[turtle561]

from a search i found this :

some pistons have offset wristpin holes so that the combustion pressure has a straighter shot at the crankpin and the load on the intake side skirt is reduced. A flip of the piston would send that all out of whack.

 

[Ductape]

Don't mess up the cylinder....... you will likely have a hard time finding an affordable replacement. :rolleyes2:

 

[flying pig]

Check the wrist pin alignment, but I haven't heard anyone with a definitive answer on this. Common sense tells me that ring ends opening in the centre of the exhaust port may be a really really bad idea.

I have a gulf in my 2100. It's been in there for probably 10 gallons of fuel and it still looks brand new. I put my locating pins on the intake side so they bridge the ports as on any other two stroke I've ever worked on.