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Cylinder not firing GS450

  • Thread starter Thread starter Tamara
  • Start date Start date
T

Tamara

Guest
My right cylinder is not firing.

I have done the following so far:

  • Removed, disassembled & cleaned carbs twice
  • Replaced plugs & plug wires
  • Cleaned and derusted gas tank
  • Changed oil, filter and lightly dampened air box filter

Any input would be great :o
 
Have you checked if it's actually getting spark?

Pull the plug, lay is so the metal thread is against the head with the lead plugged in again, and crank the motor. You should see blue sparks... be careful you don't get zapped ;)

With the plug in normally, after firing the bike up with just the left cylinder running, is the right plug wet with fuel?

No spark on the right side could be a few things, worst case being a faulty ignitor.

Check voltage to the right coil and make sure it's there.

If the right plug is not wet with fuel when the left is firing nicely, that would indicate it's a fuel issue rather than an electrical issue.
 
pete said:
Have you checked if it's actually getting spark?

Pull the plug, lay is so the metal thread is against the head with the lead plugged in again, and crank the motor. You should see blue sparks... be careful you don't get zapped ;)

With the plug in normally, after firing the bike up with just the left cylinder running, is the right plug wet with fuel?

No spark on the right side could be a few things, worst case being a faulty ignitor.

Check voltage to the right coil and make sure it's there.

If the right plug is not wet with fuel when the left is firing nicely, that would indicate it's a fuel issue rather than an electrical issue.
Click to expand...

Thanks Pete!

It had tons of spark and no one got zapped.

We ended up puling the carbs again and rechecking them. The right hand pilot jet had reclogged so we cleaned that up, put everything back together and the bike started up like a champ on both cylinders :).
 
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