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I need some help with a Tri Sport I'm trying to get back on the road. I believe it's originally a TS160 ? I bought it without a engine and from I could see it had a Rockwell JLo 2 stroke judging by the exhaust & driven clutch. I located a engine but it has since lost spark. So I would like to...

A guy at the local parts store told me i should use ND oil in my doodle bug, so i called a local small engine repair shop and they told me to use regular motor oil. I went with a synthetic blend and a new plug and it runs smooth as could be. Does anybody on here use non-detergant oil ? and...