SOTP Vintage Series
Main Motorcycle: The one between my legs
Join Date: Feb 2009
Location: Upstate NY
Other Motorcycle: A few
Extra Motorcycle: Yes
A Mk I Amal is a Mk I Amal, right. So, the throttle cable should be in the sam hole regardless of the engine it is on.
It looks like the cable is in the right hole, but the cover is on backwards. I did not think that was possible but I had Jap carbs in my brain. Just went out to my two fully disassembled Mk I Amals and yup, you can put the cover on backwards.
So Steve, turn that cover around for starters.
Now that begs the question is the slide in backwards. Yeah, I know there is a lug on the slide and a mating groove in the carb. But somebody might have filed that lug off for some obscure reason before Steve got the carb. So please make sure that the cutout faces the rear of the bike. If it is in backwards, it will act as a choke and even if you could get it to run, it would be super rich. You video however does not give the impression of an overly rich mixture. But then again, if there is no guide lug, the slide could be in just about any position.
Now I'm going to ask another dumb question because I'm sure stranger things have happened. Given that the cover is on backwards, you don't possibly have the throttle cable connected to the choke slide, do you? And the carb slide is just sitting in the bore feeling all alone and with no connection to the outside world? I could see someone who has only seen CV carbs before thinking that the slide is actuated by vacuum and the choke slide is the buterfly in a CV carb.
So, more stuff to check/confirm on your starting issue.
As for you oil leak. I did not look for it in the video, so I went back and looked again. Yikes! That is one mutha of a leak. Your original description was something like "coming out by the small gear on the chain". To me, since you cannot see the small sprocket on the primary, you muct be talking about the counter sprocket on the mainshaft of the tranny where the rear drive chain attaches. If that is what you are talking about, I'd say you are either missing a seal on the mainshaft where it exits the tranny case and enters the primary or you are missing the seal in the coverplate on the inner primary case and leaking primary oil (should not be that full but who knows). Maybe you are missing the whole cover which would align with the primary oil level. Go to your parts book and you will see the seals and the cover I'm talking about. I'd say forget about riding the bike until you get that leak sorted out. I would not even worry about getting it running until you fix that problem because it is not a minor one.
Last edited by Snakeoil; 11-02-2012 at 04:07 PM.