Last night I put the carb back together and reinstalled it in the bike. For the life of me I cannot figure out how the choke cable works. I bought a new one and attempted to install it, but it just doesn’t make sense to me. Within the carb, it seems like the bottom part of the choke is fixed and the top part is springy, but I have no idea how the cable is supposed to do anything with that when the sleeve is either in a fixed cup or a fixed elbow. Part of my problem is that it didn’t work when I got it and I’ve never had a chance to see a Moby up close and personal until this one.
So, I ended up putting the carb in without the choke cable; I’ve heard it doesn’t do much on these Gurtner carbs anyway. I also added new fuel line and a new fuel filter. I used black line and a clear filter from treat. I like that combination. I should take a picture of it.
Right now I am trying to rework my piston stop. I made one using an old spark plug. It worked well on my Puch, but it doesn’t reach the piston on the Moby. I need to get that going in order to remove the flywheel. It seems to be stuck on there pretty good.
The next step will be looking into the wiring.
January 6th, 2010 at 10:41 am
Hi!
Is the choke cable the cable that runs up to where the gas lever is? When I first got the bike, the owner said that the only way to start it was to hold down the choke while running with it then letting go. Very similar popping an engine. I don’t know if that’s what you’re talking about or not. I hope it helped a bit.
January 7th, 2010 at 7:05 am
The choke cable goes to the left side controls, which are opposite the throttle. It was frozen when I got it. I managed to free up the spring in the carb and get the choke cable out, but I can’t figure out how the new cable is supposed to operate the choke.
The lever you are talking about is called the decompression lever and it is on the right side with the throttle. That one is working how it is supposed to…and it does exactly what you said. It basically relieves some of the compression in the cylinder while you are trying to start the bike. As soon you release it, the compression comes back and the engine *should* fire.
Thanks for the input.