81 Darmah with 40MM carbs
Posted: Sat May 03, 2014 7:07 pm
Hi all, hoping to get some info on Carbs for my Darmah.
I have an 81 Darmah with 40mm Carbs. The bolt spacing on the head is 58mm.
It runs rough and sometimes the front cylinder comes in and out above idle. I have found that the idle screw is screwed right in hard but does not idle high.
I have pulled the front carby off and found that there is a bit of damage where the idle screw contacts the slide on the slanted section. Also there is a bit of side movement of the slide on the locating pin.
I have read a bit on the forum here about swapping to new 36 MM PHF carbs but that seems to be mostly if the 32 mm carbs are fitted as standard
What I want to know is
* What do I have to do to fit new 36 MM carbs .(It has 40mm fitted at the moment)
* Any way I can use the 40mm Manifold or do I have to get 32MM manifolds with modifications to the bolt holes.
* Bearing in mind that the stud spacing on the head is 58mm
Or is that all too much trouble and should I just buy a new set of 40MM PHM carbies from Steve. I just thought 40mm carbies is a bit of an overkill.
Cheers
I have an 81 Darmah with 40mm Carbs. The bolt spacing on the head is 58mm.
It runs rough and sometimes the front cylinder comes in and out above idle. I have found that the idle screw is screwed right in hard but does not idle high.
I have pulled the front carby off and found that there is a bit of damage where the idle screw contacts the slide on the slanted section. Also there is a bit of side movement of the slide on the locating pin.
I have read a bit on the forum here about swapping to new 36 MM PHF carbs but that seems to be mostly if the 32 mm carbs are fitted as standard
What I want to know is
* What do I have to do to fit new 36 MM carbs .(It has 40mm fitted at the moment)
* Any way I can use the 40mm Manifold or do I have to get 32MM manifolds with modifications to the bolt holes.
* Bearing in mind that the stud spacing on the head is 58mm
Or is that all too much trouble and should I just buy a new set of 40MM PHM carbies from Steve. I just thought 40mm carbies is a bit of an overkill.
Cheers