Well, if it really only needs gas......
It
at least needed gas. But that's really not all.
Original carb was hooked up like all modern motos with two throttle cables. The original throttle cables are gone, and only one remains. Unfortunately the throttle control is not equipped with a "stop" to prevent the throttle tube from being turned the wrong direction since it is intended for the 2nd cable to stop it, so I had to do a little mod.
A little fiddling with digital calipers and 3-d imagination, and I drilled a hole and stuck in a self tapping 4-40 screw to serve as a throttle tube stop. Works great.
Once that was done, I reassembled the RH control, and in the process a little piece broke off of the run/stop switch. That made reassembly much harder. Also it made the switch operate in reverse, which tells me something is Just Not Right. So I have it back apart now trying to figure a way to get it to work correctly, but I think the odds are I will just hotwire it if it doesn't straighten up and fly right, later today.
Before I noticed the switch not working, I did "finish" reassembling the carb to the bike. Had a heck of a time getting the non-stock carb to fit the intake boot and airbox. I removed the evap system since the new carb had nowhere to hook it up. I found a dangling open vacuum port from the intake boot and plugged it. I noticed a fuel hose barb on the right side of the carb that was not hooked to anything, but I left it unhooked in hopes it's just the vent but I have serious doubts. Then I turned the switch to "stop", which happens to be the only position where the starter will turn, and attempted to start it. No dice. Now, it could be that the ignition is not on because of the start switch being goofed. Or it could be the thing I failed to notice until after, which is that some parts are missing from the left hand side of the carb, a vaccum chamber or some kind and cover that should have a vacuum fitting on it. So my guess now is that as new as this carb looks, it's time for it to go.
This morning I'm headed out to try and figure out what the other carb is, if it is in fact big enough for a 125cc scooter or if it's a 50cc type, and whether I need yet another carb. Since I have no idea what the one on there is, I can't really get the right parts to replace it, and I have no guarantee it could work anyway. Also hope to get the run/stop switch working right or at least hotwire it to "run" for the time being. Later this afternoon after church and lawn work, I hope to find some way to get this thing basically running. But it might take a different carb for that to happen.
Someone on CL in Austin has a couple of Mikuni VM22s with the dreaded K&N cone filters for sale, new and never mounted. I am considering grabbing one of those since I know it can be made to work and these GY6 type carbs are a crap shoot. But I am holding out hope that I can get to "vroom" without spending any money. Eventually this thing is going to require paint and a bonded title so I am trying to limit my expenses to just garage time at the moment. We know that won't hold for long.
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I guess some people really do need a sign.
