M1000: One cylinder runs cooler than the other??

more snow · Jan 19, 2010

I have an 07 M1000. Recently, I noticed through my EGT gauges that the PTO cylinder is all of a sudden running 200-300 degrees F cooler than the Mag cylinder. They have always run almost dead even. I already checked the trim settings on my boondocker controller. Anyone else ever have this happen? What are the likey causes for this?

Thanks.

TNTCOPP · Jan 19, 2010

Mine started doing the exact same thing a few rides ago. Going to start by switching the connections on the gauge to see if the problem lies with the KOSO / probes or not. Mine is on an '09 - still running fine - temps are just messed up.

WyoBoy1000 · Jan 19, 2010

change the plugs is where I would start.

Pastor · Jan 19, 2010

Check your plugs and see if there is a color difference.

If there is check your compression.

I would also swap probes to see if the problem lies in the egt.

Pieguy · Jan 19, 2010

Make sure the probe strap is tight. My Crossfire1000 was doing the some thing on the Mag side. It was a broken probe strap.

ARICH · Jan 20, 2010

check if a hole rubbed thru on the intake boot, my M7 did the exact same thing when i rubbed a hole in my intake boot,
also check to make sure the hose clamps are tight on the throttle bodies

Blue Light · Jan 20, 2010

Weld on bungs for probes.

TNTCOPP · Jan 22, 2010

Discovered my pto side probe had worked it's way out about an inch or so - have not fired it back up yet but I'm sure that's what the problem was.

more snow · Jan 25, 2010

I also discovered that my EGT probe has worked its way out on the PTO side. This was the most likely cause. Will see what happens on the next ride.

MR.T · Jan 25, 2010

more snow said:
I also discovered that my EGT probe has worked its way out on the PTO side. This was the most likely cause. Will see what happens on the next ride.

That is your problem, absolutely. I had to finally wire my probes to the Y pipe because the probes were working their way out, giving me inaccurate readings. I always new the probe(s) were loose because they were 2-300 degr. out. weld on probe fittings are much better. Try tie wiring your probes to the Y pipe. Worked for me. still had to tighten down probes periodically though:beer;.

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M1000: One cylinder runs cooler than the other??

more snow

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more snow

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