chug chug..

[Snowfox]

I've had this prob on and off for a while but now it seems worse maybe due to the cool temperature. Basically it chugs at the bottom of a gear. Usually second or third at low revs, sort of jerks back and forth, hard to describe. Giving it some revs seems to rectify it. Today it was doing it in 4th at 50km/h so giving it some revs would have got me a nice double points ticket. Anyone else have/had this annoying action ? I've just had the gear box rebuilt and the clutch has had some work too but it has done it before that.

 

[Bax]

How are your spark plugs looking? And timing perhaps.