removal of intake restriction on stock cylinders

so i got some stock 50cc puch cylinders to fuck around with porting, but three of the 4 have this hard metal ring popped in to restrict them, how do i get that bugger out?

Re: removal of intake restriction on stock cylinde

Dremel it out?

Re: removal of intake restriction on stock cylinde

does not dremel, much harder than anything else i have dealt with

Re: removal of intake restriction on stock cylinde

big self tapping screw and a slide hammer.

otherwise real carefully with a skill saw.

removal of intake restriction on stock cylinders

I have used a Dremel on it with those carbide tile cutting bits. had to cut through it on both sides as it seems to be somewhat recesses in to a groove there. After I cut both sides and a little bit in to the port wall, I was able to wiggle each piece out of the groove. It really sucked.

Re: removal of intake restriction on stock cylinde

Was that on that Puch AD cylinder?

Re: removal of intake restriction on stock cylinde

the other JLEE /

i removed mine by heating up the area with a propane torch and punching it out thru the exhaust port with a long screw driver.

Re: removal of intake restriction on stock cylinde

i removed mine by heating up the area with a propane torch and punching it out thru the exhaust port with a long screw driver.

AH

that is what i was missing, HEAT.

RIGHT ON. i will try this asap

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