Alright guys been out on my bike today after fitting a new radiator

Firstly a noticed the fan seemed to be coming on a lot

Then after about 10mins riding a went up a hill and it cut out

A kicked it and a had a little back fire

Then after about 2 mins it started and a cut it out to see if it fired back up with no joy

2mins later it started and I tried the same it wouldn't fire up

A got it home and have no spark I changed the plug and the same no spark

Me mate put a screw driver in the cap and he got no belt

I've checked all the wiring is connected properly etc

And have also disconnected the kill switch to rule this out

Can some one help me with my next move before I either scrap this bike or set it on fire thanks

It's a 2004 Sherco 290

Im guessing a stator. mine went for 2 hours then needed replacing, yours has done well.

What's it cost Nigel mate

http://www.splatshop.co.uk/stator-repair-exchange-new-style.html

Thanks line away you got any other suggestion what it could be ?

Could it be compression if it was low if rings were on way would that make it not spark ?

try checking the woodruff key first - remove the flywheel cover ( plastic cover just infront of your left foot when your on the bike) and i think you have to remove the flywheel and you will see where the 'key' should sit and if its sheared or not. i have had this a few times causing same symptons as you where it cut out and then wouldnt go and can only get a backfire.  im pretty sure its a fairly simple job - just when it happened to me someone else has done the work on the bike for me as i didnt have a fly wheel puller. 

 

http://www.splatshop.co.uk/sherco-flywheel-woodruff-key.html

Nice one I will give it a check tomorrow I've been put onto Bradford ignitions they are 125 a exchange unit for the stator but could it be the Cdi ??

I had similar problems with my 2007 Sherco and traced the problem to a bunch of earth wires terminated up above the radiator on the frame, hard to see. But you may have already checked that. 

Cheers Taff

Should be a pinned post on here about testing the stator otherwise splatshop's site has the readings you need listed in the listing for stators

I would check woodruff key first.

If resistance check not conclusive try setting your meter to ac volts and kicking the engine over - plug out so it spins well.

Look for a peak of  maybe up to 4 V from the trigger and 20 to 30 from the source coil. The trigger is the one with the higher ohms values on splatshop guide.

Ye I'm gonna nip to feet up tomorrow and get a puller to take it off and check