RED-85-Z51
Addicted to ArboristSite
I tore my srm210 trimmer apart for a new ring last night and noted the pin is on a port...hasnt caused any problems in 13 hard seasons.Ok the 266 big bore kit is am but made in Italy. The chrome job looks perfect. This cylinder needed chamfering on the ports. Inspection on the piston the arrow shows pointing towards the exhaust which is correct. But below the arrow is the pin for the ring gap. You can’t run the ring gap pass an open port. It will self destruct. You have to check everything.
When I tested a new designed 2100 cylinder for Husqvarna r&d they did the samething with running the ring gap passed a open port. We turned the piston around to run the test. A few dealers who ran this test didn’t catch it.
The new cylinder had better performance and gas consumption.