No spark to either cylinder

discussions specific to the 907IE
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twd46
Posts: 37
Joined: Sat Jul 24, 2021 3:08 pm
model: 907 I.E.
year: 1991
Location: USA

No spark to either cylinder

Post by twd46 »

Hello,

I went for a ride a few weeks ago and my 91 907 performed very well. The next day, I went out to start the bike and it wouldn't start. It hasn't started since. I eventually killed the starter trying to start it and have installed a new starter. But I am still not getting spark on either cylinder. The fuel pump cuts on as it should, and bike turns over well. Ive checked ecu connections and they look good. I am thinking crank position sensor or more likely, wiring. Its odd that it ran great one day, but wouldn't start the next. Any help would be most appreciated. I miss riding it.
Mc tool
paso grand pooh-bah
Posts: 1829
Joined: Wed Dec 05, 2007 12:35 am
model: 906 Paso
year: 1990
Location: Newzealand

Re: No spark to either cylinder

Post by Mc tool »

Have a good look at the kill switch and wires . Not sure about the 907 but the 906 kill switch cuts the power to the ecu . Probly the quickest way would be just to check you have power to the ecu. If you dont, try bridging out the kill switch where it joins the main harness.
I wish I was young again............Id be heaps smarter than last time
twd46
Posts: 37
Joined: Sat Jul 24, 2021 3:08 pm
model: 907 I.E.
year: 1991
Location: USA

Re: No spark to either cylinder

Post by twd46 »

Thanks MC tool. I think thats a good place to start.
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