godzilla Posted March 8, 2010 Report Share Posted March 8, 2010 (edited) I am struggling to find a spark on my 06 290 i have tried a new plug and looked at the kill switch bit there is nothing. Also is the lead replaceable on this bike IE screw on? Edited March 8, 2010 by godzilla Quote Link to comment Share on other sites More sharing options...
t-shock 250 Posted March 8, 2010 Report Share Posted March 8, 2010 Probably the stator. Very common fault on sherco's,i got a rewound exchange one from splatshop. Quote Link to comment Share on other sites More sharing options...
shercomike Posted March 8, 2010 Report Share Posted March 8, 2010 I struggled with the same think on my '06 a couple of years ago and read the posts about new stator's etc. When I kicked the motor over, I could never see a spark at the plug. However, after a few evenings of dicking around, I realized it was sparking with the plug installed. Maybe I wasn't kicking it hard enough or the plug was not well grounded. My misfiring turned out to be a carb problem and not from a lack of spark. I have an old Bultaco (don't we all), and I can crank it with my hand and see a fat spark at the plug. Not so with the Sherco. YMMV, but you might consider this before you dig any deeper. Quote Link to comment Share on other sites More sharing options...
godzilla Posted March 8, 2010 Author Report Share Posted March 8, 2010 i have had the carb off blown it out, airbox off and cleaned inside and out ect. I turned off the lights in the garage and kicked her over in the dark and got no spark what so ever.. out of intrest what was wrong with your carb mike? Quote Link to comment Share on other sites More sharing options...
copemech Posted March 9, 2010 Report Share Posted March 9, 2010 These issues can be difficult. Was there any warning? Stators may go, but seems many report odd running. Not to say that any electricals can pack in anytime. Do you have any mates that could assist in letting you try their coil/ign. unit? Splatshop has some Ohm readings posted online that you could use to test things. Not quite sure the validity of any static readings though really. As functunally they may not work still! Quote Link to comment Share on other sites More sharing options...
tony27 Posted March 9, 2010 Report Share Posted March 9, 2010 I had 1 lose spark during a trial last year, would come back when cold. Second day of the trial it quit completely & when I checked the next day still had no spark. Testing with the ohm meter showed slight differences to the readings but not major ones, on reconnecting everything the spark returned along with a telltale arc to the fan motor from a tiny crack on the plug cap which I hadn't noticed before Try a new plug cap as they're cheap then get hold of Chris at Splatshop if you still have no joy. He'll send you 1 quick enough for you to be going again by the weekend Quote Link to comment Share on other sites More sharing options...
neo Posted March 9, 2010 Report Share Posted March 9, 2010 (edited) My Notes on tested on my working stators (250 and 125)..... Testing the Trigger and Stator Using the diode test on a multi meter to test the trigger Blue no reading brown 1601 ohms black 1626 ohms using the red lead and black on earth Blue 725 ohms brown 766 ohms black 767 ohms using the black lead and red on earth I also tested the resistance's of the other wires White to red 95.4 ohms Red to green 549 ohms green to white 637 ohms - - - - - - - - - - - - - - - - - - - - Testing and checking your Sherco stator plates, only applicable to the Lenoelli stators from 2002 to 2007. To Test Sherco triggers, check mode on a multi meter, you should get reading something like this, don't worry about exact numbers if it is somewhere in the same region. Using an Anolog meter the red lead to the plug terminals and black to earth. Blue no reading brown 1000 to 1600 black 1050 to 1650 Using the leads the other way around i.e. black lead to the coloured wires, red to earth. Blue 600 to 730 ohms brown 650 to 770 ohms black 650 to 770 ohms Using a Digital meter in Diode mode the red lead to the plug terminals and black to earth. Blue no reading (sometimes shown as 1 or error) Blue 0 (sometimes shown as 1 or error) Brown 1018 Black 1100 Using the leads the other way around i.e. black lead to the coloured wires, red to earth. Blue 635 Brown 661 Black 661 Also test the resistance's of the other coil wires, leads either way around. White to red 95 ohms Red to green 550 ohms green to white 640 ohms - - - - - - - - - - - - - - - - - - - - http://www.uk-motoplat.com/home.html Hope these help. Best of balance. Neo Edited March 9, 2010 by Neo Quote Link to comment Share on other sites More sharing options...
godzilla Posted March 9, 2010 Author Report Share Posted March 9, 2010 (edited) Thanks guys, i have TT5TH coming round later today with a multi meter so we will take a look at the readings. The plug and cap where the first things i changed, as for the running of the bike i only picked it up the other night, it started for a a little then died. it came from a friend who got an 09 bike an laid this one up. I spoke to chris from the splat shop and he was very helpfull indeed. Im not worrying about the weekend as i have a mint 08 scorpa and a mint 315 the sherco is just a project. I will keep you updated, later today. Edited March 9, 2010 by godzilla Quote Link to comment Share on other sites More sharing options...
godzilla Posted March 9, 2010 Author Report Share Posted March 9, 2010 We tested the stator this afternoon and the got readings of around half the values given by Neo. i spoke to Steve Hardaker in Spain he can repair the stator for Quote Link to comment Share on other sites More sharing options...
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