Strange thing By mthomas (Read 557 times)

[mthomas]

Well it got to about 38 degrees today, felt like a heat wave. Decided to take the new scoot across the street just to shake it down. Just wanted to make sure the brakes worked, wheels went true, motor ran ok, you know, just take it down the road. So I start it up and let it warm up a bit. I sit on it and it dies. Try to start it and no go. Get off and starts right up, sit on it and it dies. Open the seat and don't see any wires to the seat that may be a trip sensor. Play around with the fuse to the battery and it does the same thing. Finally get it to run while sitting on it. Take it across the street a bit and it run ok other than it shudders a bit on takeoff. Still stumped about it shutting off though. Sound familiar to anyone?

[catrell92]

by any chance do u have the CN250 motor ? i had that problem a while ago, i would sit on it, it wouldnt die but the idle got alot lower like it was straining, it stopped miraculously though, im only 175 lbs , if i were u i would check the intake valve, maybe it has a crack in it and when you sit on the bike, your weight widens thus creating a really lean condition, or maybe your pinching or kinking a fuel line or vac line. it was really bad when i used to ride my dad on the back of my bike lol (haha) i would have to keep revving the motor because when he hopped on the RPMs would go from like 1800 to 1200 and the bike would die if i stopped too hard, it ran good 10mph+, when he hopped off everything returned as normal.

[Cruiser]

When you sit on the scoot do all the electrics die along with the engine? If just the engine dies but everything else is still operational, then I would check the ignition (coil, CDI, and associated wiring). Sitting on the scoot flexes the rear suspension and engine in relation to the rest of the scoot. Any wiring from the frame to the engine would be suspect.