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#12727
LaserBeam
πŸ‘€ Member
  • Topics: 14
  • Replies: 105

I forgot to mention it’s the front cylinder that is not sparking

Quote

Hi all. think i have same issue. My GT250R had a cooler front cylinder when i bought it. It ran rough at 6-7000rpm but i mostly fixed that, with some fuel cleaner, bigger fuel-filter, Goss fuel lines & NGK CR8EK plugs. It idled at 2050rpm, when warmed up, so i turned the idle screw a touch got it t0 1450 rpm. The bike was running really well, could get to 10,000rpm & i was happy. But i knew FRONT Cylinder was producing less HEAT (feels heaps colder) than REAR Cylinder.

Found some fuel spray in the air-box. Looks like fuel comes from the FRONT carby, for Front Cylinder.Β  Bike still ran well. Then i removed the Ignition Coil for Rear Cylinder. Replacement coil did not fit so i replaced the old coil. It started, warmed up a bit, took me about 10Km away then it stopped at the traffic lights, at night. Had all my gear on; i was hot when i finished pushing it home. Next day bike started & idled, then stopped firing on Front Cylinder. I’m getting new coils & i guess a new CDI unit.

Do you think the fuel in the airbox & COLD Front Cylinder mean the TIMING is out, on Front Cylinder?

Or is that just from inconsistent spark or a lack of spark? Hoping the carbies are ok. It ran well for weeks.

Any advice greatly appreciate, many thanks. πŸ’‘

 

-----LaserBeam---->