[Johnnie_Scotland]

Hi all
Some advice would be much appreciated

I'm new to this awesome sport, and loving it, I have just purchased a 2010 sherco st250 which mis/back fires often when kick starting...
I know of another rider with a 2010 290 and his appears to do the same.

Do they all do this?

Is this normal/no problem/to be expected?

Will it do damage to anything/engine?

What should I do?

Should I take it back to the dealer?

Will he laugh at me being for thick?

The bike seems to run well once started which is never a problem, plug looks fine to my eyes, I notice a change in spark plug from 2009 model could this be worth checking?

Many thanks for any views on this matter

John

[copemech]

It is normal. Limp boot may make it more prone, yet still normal.

You can slow the ignition timing just a tad and this will help. Also has a smoothing effect with little loss of performance if you only rotate the stator back(counter) 2-3 mm. from the factory setting.

I should add the fact this is not a Sherco exclusive issue, as other bikes do the same, yet I do not track such stuff. Suffice it to say the factories just try to find a balance on the settings for good performance. Notice I said "good", not maximized an not minimized.

This post has been edited by copemech: 02 June 2010 - 02:15 AM

[ishy]

Also check the two bolts that hold the ign module to the head brace are tight , there are two ground wires that use the bolts for ground at this point, my bike started missfiring and this was the cause.

[Johnnie_Scotland]

Okay Guys

Thanks for taking the time to respond, this gives me something to go at.

Thanks again.

[jcam]

me,my dad and brother in law both have 2010 models and they all do same.Nothing to worry about.

[roosterbrew]

Yes i have the same thing on my 2010 250, but not always, she tends to fire up first kick,

[Johnnie_Scotland]

Yes

I am worrying about nothing

Thanks again guys

Trials Central is the place for advice

Brilliant...just like the bike.