robdoyle, Thanks for the reply! Starter has been off. I don't see any corrosion any where. I did try to jump the old starter direct with jumper cables when it was off the quad, and it acted like it had a flat spot, e.g. ground the case and momentarily touch the POS jumper cable to the lug, and sometimes it would just spark, and some times it would spin. So I ordered a aftermarket Chinese repop, and it arrived today. Installed it and same condition, starter turns the engine over, but no start when cold. OK, I'll see if it still starts on pull rope. Nope! The repop starter case that goes into the engine case is ~ 1/16 to 3/32 inch longer, and somehow the compression release does not release with the repop starter installed. OK remove repop, reinstall old starter, same cold no start condition when old starter does turn engine over, Note I did get one backfire, but still no start cold. Thankfully pull rope engages and starts engine. I ride it up and down the driveway to warm it up, and then shut it off and try to start it on starter, and it starts 5 times in a row with no issues. I didn't think to keep trying more times to see if it wouldn't start. I'm open to any and all suggestions?? Thanks in Advance!!