it dosant happen every time but when pulling away it seems to jump like a belt or chain?
this is on a uly 2005 18,000mls up
was thinking crank drive nut come loose??

any thoughts,

john

Not sure if the Xb's do the same but that is a common fault on tubers due to slightly rounded dogs on the gears slipping before they fully engage ............................My X1 as done it for about the last 35K miles

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2001 X1 2009 1125CR 2006 Uly X3 2010 Uly a fully Maz'd S1 and a 1991 RS1200 Westwind.

Does it only happen when engaging the clutch or if you crack the throttle when the engine is chugging in first at low revs?

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08 Specialized Langster

on first gear when pulling away, not aggressively!!

it happend today twice. i did about 90mls
john

So, if you do it without touching the clutch?

Have you checked the belt for missing teeth?

Is this the bargain belt?

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08 Specialized Langster

just checked the belt and it looks fine (done about 1200mls on it so far so good, but i am carrying a spair)
i have a free spirit belt tensioner should this be tightens up on the spring adjustment??

john

I can see where Pash is coming from, I had a similar thing, turned out to be the primary chain needed adjusting

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Wear the fox hat

I don't have this problem on mine and I have not tightened the spring on my tensioner, however when feeding the clutch in it does feel like there is some jump, but it is the clutch dragging, hence the question which you have not really answered.

As for your belt, could it be stretching more than a standard belt and hence very loose as the belt feeds into the sprocket? Did this happen with your original belt? Changes in system behavior are normally related to something that has recently changed...

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08 Specialized Langster

needs more investigation but was going to do 650mls to a meeting and back next Saturday.
but if i cant find whats happening will have to knock it on the head
johnh

Did it happen with the old belt?

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08 Specialized Langster