Britbike forum Forums Thread Like Summary - Monblock woes

Ok Im grumpy.

The 64 lightning rocket does not idle right. Specifically all warmed up and idling at a stoplight. When I pull off it dies.

The correct Monoblocks have 20 pilot jets in them.

The book says 25's.

So I'm thinking of putting 25's in and then how far open should the airscrews be?

The carbs have been resleeved by Lund so there should be no air leaks around the slide.



I've noticed that when I don't have the idle jetting right, I and other people end up compensating by opening the slides. This cause the tune to be difficult which is where I think I'm at.

Thanks in advance for your Monoblock advise.

Setting for the 389/206 http://porklips.org/~mason/moto/amal_specs.html#table2

Ok the 25 pilot jets are in.

Fuel height in the float bowls both match.

Carbs are sync'd.

Also I found TDC and put a degree wheel on the primary and strobed the timing - it was way off.

It starts much easier and idles really well tonight and full advance now comes up 34 degrees.

I didnt Allan. Sombody else set them up with 20's. I've got the 25's in hand. 2 1/2 turns... that i needed to know thanks.