I just finished my first ride on my winter project of installing a 2 stroke 48 on a Walmart variety Schwinn cruiser bike. Luckily I didn't have any major problems but I have tried to be careful and quite a bit of reading the manual. I may have jumped the gun by installing a Schwinn performance computer/speedometer. I thought an odometer/trip meter would be great but I'm having problems. That is what prompted me to try the internet for a motorbike forum... I am thrilled to find this one. It works fine pedaling the bike around (no fun lol), but it gives random readings once the engine is started. The bike can be moving or stationary. The readout can be removed from the mount and handheld and it still picks up interference. Am I fighting a loosing battle or does anyone reading this have any suggestions?