Chainsaw Repair

Dear community,

I have searched this forum and haven't found any info on the topic of this type of carb cap. I have also searched other forums but haven't found what I am looking for.

I am aware of using a dry wall screw to remove the "epa" caps but this model is more than resilient. It is on a walbro carb and I would like to remove it in a way as to reapply after correction. If I pull it I can only get it off 1-2mm. That's all. After that it just snaps in place and I could hang the saw from the limiter!
Any one an idea?

Here is a pic from the outside.




Thanks for the help!

7

p.s. it's about this saw

http://www.youtube.com/watch?v=CimuajB4Vq4

Thanks was hoping to remove and be able to reinsert so that the possible changes are limited.

Will do a review here of the above saw soon.

7

Fedex just dropped off a real nice 962.  Piston is scored.  Got a WP 162 P&C may drop it on it after I find out why it scored.  Was going to put it on a 156 with a 165 crank for a lighter 165.  I think the 962 has a dual port cyl. where the 162 is quad port.  I'll know tomorrow.
Shep

Pulled cyl on 962 this afternoon.  It was as I suspected dual port not quad port. 
Shep