1st build/1st ride - carb ????

the carb.set up

I am going to change this set up this week end. I have a spare carb and an intake. I am going to Home Depot this am. to get another elbow and some different clamps. I am then going to put it together and maybe use JB weld or something similar to plug any air leaks. I just think my problem was my choke as the idle is pretty good right now. Thanks.
 
I am going to change this set up this week end. I have a spare carb and an intake. I am going to Home Depot this am. to get another elbow and some different clamps. I am then going to put it together and maybe use JB weld or something similar to plug any air leaks. I just think my problem was my choke as the idle is pretty good right now. Thanks.

i would not use jb weld because gas will deteriorate it over time. Jb weld is only epoxy.
I would use silver solder with acid flux, much like how you would sweat copper plumbing in a house.
 
Nice Elbow- I have the exact same frame from Wally. I made my own elbow out of copper pipe and JB welded it on. It looks like ****.

Is you elbow a simple plumbers fitting?? I might change to that.

Thanks for posting the pic :)
 
Carb.

The elbow is from Home Depot plumbing dept. About $2.00. As for the fitting to the intake, as I said, I cut 4 slots in the intake so that it would crimp around the elbow. I will be fine tuning, but my problem with idlewas the choke (I think, as I am mechanically inclined). What was happening, was as I would ride with choke all the way ON, it was so loose it would open up by itself, causing the idle to go wild. I took off the air cleaner and tightened the choke down really tight. I can move it with one hand but now it stays where I put it. Idle improved 100%. Dale
 
The elbow is from Home Depot plumbing dept. About $2.00. As for the fitting to the intake, as I said, I cut 4 slots in the intake so that it would crimp around the elbow. I will be fine tuning, but my problem with idlewas the choke (I think, as I am mechanically inclined). What was happening, was as I would ride with choke all the way ON, it was so loose it would open up by itself, causing the idle to go wild. I took off the air cleaner and tightened the choke down really tight. I can move it with one hand but now it stays where I put it. Idle improved 100%. Dale

that's odd because by what you are describing, it couldn't be the choke.
when you are riding with the engine warmed up you want the choke to be OPEN (or off). If the choke would close while riding, the engine would either quit running or run terrible.
So if what you are saying is that you have to ride with the choke closed (or on), then you have a massive air leak (which i mentioned earlier).
if the choke is open and your idle "goes crazy" this would also indicate an air leak.

any time you have to have the choke closed other than on initial start up, indicates a bad air leak. by closing the choke you are cutting off the main air supply into the carb and the air leak is supplying enough air to make the engine run ok.
remove the air filter assembly and start the engine like you always do. now, make sure that the choke s open (or off) now, put your hand over the carb throat. if the engine still runs, you have an air leak.
when i say choke open (or off), i mean that the little disk on the end of the carb is not blocking the carb throat.
 
Carb.

The book I got with the motor (from RAW) states that upon starting close the choke (lift the lever up - lowering the disc with a hole in it) and as you ride lower the lever as the engine warms up. My choke was so loose that I could not go 10 feet and the choke lever would work its way down so that the choke was fully open. ergo - high revs when clutch was disengaged. Now after running and the choke tightened, The idle is ok after engine warms and I have opened the choke. I still have to fine tune but things are looking up. I don't think I am getting an air leak at the intake, but I am going to take precautionary measures this weekend just to make sure. Dale
 
yes, close the choke to start a cold engine. let it run for a few seconds and then open the choke (lever up is choke closed, lever down is choke open).
really, when you choke the engine on start up you shouldn't need it to be closed for very long. you can close it all the way and start the engine, then quickly move it to about the middle position and work the throttle (don't ride off yet).
don't take off riding until the engine is running and idling on it's own with the choke fully open.
if you try to ride with the choke closed or 1/2 closed the engine will run terrible and have very low power.
 
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