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.

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Do they all do this?

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Is this normal/no problem/to be expected?

Will it do damage to anything/engine?

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What should I do?

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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

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.

Edited June 2, 201016 yr by copemech

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.

Okay Guys

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

Thanks again.

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

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

Yes

I am worrying about nothing

Thanks again guys

Trials Central is the place for advice

Brilliant...just like the bike.