These motors need a strong, quick kick to get started. If you fail to follow this procedure, especially with longer stroke engines or 125cc + bores you can cause serious damage to your crankcase, clutch and transmissions assemblies!
Hold onto the crossbar pad with your throttle hand while kicking the bike over to avoid twisting the throttle open by accident. Before start up - turn the idle screw on the carburetor in a turn or 2 turn the screw back out to normal idle setting once running. Use a digital CDI with variable ignition timing at start-up, this will help reduce kick back and allow the bike to start much easier compared to the stock CDI unit. If ignition timing is adjustable it should be adjusted to the minimum.
Furious, repeated kicking will not get the engine started - firm, full stroke kicks are the only way to get them to start first kick, every time "Quality over Quantity". Throttle must be completely closed when you kick the engine over or it will kick back EVERY TIME. A small blip of the throttle maybe used when the engine is hot if required but NO more than 10 ° opening of the throttle in any case. The item "140CC PIRANHA SEMI-AUTO Electric start under engine.Better than Lifan 125" is in sale since Thursday, September 14, 2017. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Brakes & Suspension\Other Brakes & Suspension". The seller is "piranhapitbikes" and is located in Akron, Ohio. This item can be shipped worldwide.