1996 Seadoo XP 787

[Jim G.]

Help

Engine starts, idles fine, but when accelerating or pushing on the throttle the spark is sporadic or intermittent causing engine to run erratic: checked spark coil ohms primary & secondary, their OK: Any ideas would be appreciated:

Also can you tell me which 2 leads to test on the trigger coil to test for proper resistance?

 

[bz1mcr]

Sounds just like my 96 GTX is acting. I'll be watching for your fix. Please post if you solve the problem.

 

[bz1mcr]

Ignition problem--rectifier cause

I have not tried this but it has been suggested that it could be a failed rectifier. If so there is an easy test. Just disconnect the red wire, which will disable the battery charging circuit, if the miss goes away the rectifier needs to be replaced. You the machine will start and run ok with the lead off, but the battery will slowly discharge. It should be fine for a test ride of up to 1/2 hr. But, don't leave it disconnected, eventually the battery will go low and ignition and cranking will be disabled.

It's an easy test and fix if that's the problem.

Let us know.
Don

 

[bz1mcr]

I tried it on mine and it did not fix the problem.