Any idea why my scooter will not fire up?

by Mark Ellestad
(River Falls, WI, USA)

My scooter is imported from China (big shock), and I have not been able to locate anything about it online. It's a yo-yo scooter th50qt-20 manufactured by Shanghi Meitian/Touhe enterprises in 2004.

I bought it used... the odometer says it only has 150 km/mi on it. The problem is it just won't start, it turns over forever and every once and a while it will back fire.

I checked the fuel lines, filters and checked the carb to see if it was receiving gas... it was... I put a new spark plug in it and checked to see if the spark plug wire was sparking, it was.

What can I try next? Also, does anyone know where I can find any information on this brand of scooter?

Thank you for your time... Markus

Comments for Any idea why my scooter will not fire up?

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Oct 27, 2010
by: Jim Zeiser

First off look in the Chinese scooter section of the forum here. Jeff has some manuals on Chinese scooters you can get online. Second, I recently had a very similar problem to yours with a scooter I'm fixing. Basically it turned out to be a problem with the plug into the CDI. I even had spark at the plug but it wouldn't start. I pulled out the plug at the CDI and pushed it back in and, Voila, it runs. I also had to put in a new plug because the engine broke the spark plug's insulator. I spent two days chasing carburetor solutions until I went after the CDI. Electrical problems will make you nutty the way they lead you astray.

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