no spark on one cylinder - Snowmobile Forum: Your #1 Snowmobile Forum

ktm495mx · 12-02-2012, 11:07 PM

i just picked up a new to me 04 king cat 900 a while back i just took it up for a two day trip the first day it was perfect. second day i pulled it out of my truck started it and it took three or four pulls to start and it had no power. so i checked for spark and the right cylinder (if your sitting on the sled) has no spark but the left side does. I tried the obligatory new plug but no luck. can only one side of the coil go out or am I looking into a stator? thanks for the help

ridegreen · 12-03-2012, 02:43 AM

I'd start by looking at the wires from the stator to the coil pack making sure all is good, then try taking off the rubber boots and cut off to fresh wire and try that, if you have another coil pack that you could swap out just to see if that's the problem I would do that to before buying one to make sure whether or not that's the problem.

**smallengineguy** · 12-03-2012, 03:37 AM

X2. Usually if it's the stator, both plugs would be affected.

**kccats** · 12-03-2012, 06:17 AM

Start by just cutting a 1/4" off the wire and then screwing the cap back on tight!

Blaine1 · 12-03-2012, 07:35 AM

Those stators don't go bad very often....it must be another issue...connectors, ground wire, spark plug wires ect.. also the coils very rarely go bad either.

ktm495mx · 12-03-2012, 08:24 PM

I cut a bit off the plug wire yesterday day when I got back to the truck and it was a no go. I have never owned a cat before so I'm not to familiar with their wiring but I'm going to look into all the conections tonight. Any in particular I should be looking out for?

ridegreen · 12-03-2012, 08:35 PM

Look broke or loose connections. also what what year is that? I assume that's a triple to write? if so does that run single coils to each cylinders?

ktm495mx · 12-03-2012, 08:52 PM

No its a 2004 king cat 900 twin cylinder and it only has a single coil.

ridegreen · 12-03-2012, 09:00 PM

Oh ok, anyways that's where I would start.

**kccats** · 12-04-2012, 06:38 AM

If you have spark on one try just swapping the wire? If you have 1 with the other should too! It is a lost spark system, they both spark every 1/2 revolution! Swap out the coil!