Hi again, I am trying to help you, but unfortunately we don't have a chainsaw guru that maybe able to give you the advice you require, on this forum at present, other than our administrator Bruce... To send him a PM, click HERE Bruce should be able to give you some advice. Sorry that I could not be of more help.
Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member. Kindest Regards, Darryl