CARBS...I give up

How does the carb work when you are under power? Do you seem to have normal throttle movement in the twist on the bars? In the pics it looks like everything is OK. I did have an engine that had a bad case gasket and it would not idle and was fussy, but would go OK. If the throttle cable is too short it will hold the throttle open also, check at the twist handle and make sure the boss is threaded in all the way. I have done a lot of mods to this little carb and it works OK with the mods, but you have a unique problem. Have fun, Dave

PS: Keep it up you will find the problem, and it is not electrical.
Stock carb mod

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Chuck - The monkey has the spark plug again! http://motorbicycling.com/f28/chuck-...gain-5782.html

That's a pretty unique problem .. Post a video with the handle bars and you operating it in view. Then trace the throttle cable and clutch cable with the camera close up for us. I'm curious as to how or why the engine would rev and then stall when you pull the clutch in... Can you rev the motor with by twisting the throttle?

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Ghent Cruisers

Looks like the carb is not all the way pushed on the intake (airleak) and why is the fuel filter sideway's with the fuel going uphill to the carb. might need to shorten the fuel line so its all downhill to the carb.

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http://www.youtube.com/watch?v=2IZ7HxqOv-A

I know the fuel filter looks full of fuel but it is going uphill towards the carb and it is a paper element in colder weather and thicker oil for breakin I had the same problem. Once the fuel is spent from the bowl and it ain't sloshin around rollin down the road you have fuel starving...just for grins bypass the fuel filter and see if it helps. The stock tank has a screen filter in it. Second thing I notice is you put both springs on the actuator side of the clutch cable I did the same...the big spring is for a heat shield on the cable on the other side of the standoff. I took both springs off jrom the actuator side there's plenty of return from the clutch internal springs. Pictures almost always help. I also noticed you air filter seems to be squeezed against the seat post I'd elbow the carb to the side as that seems to me would be jarrin the carb alot.

Posting a video will be my next step this weekend. I am still figuring out how to take video with one hand and the other on the clutch lever. Not only that...I still have to run the bike first then come to a full stop with video cams on my right arm is quite susceptible to crash...but I will take videos this weekend.

As of right now all I can do is take pictures...

your intake looks like a piece of junk.

didja try spraying it with carb cleaner to see if it has any leaks?

i'd get rid of those acorn nuts and replace them with regular nuts. the acorns might be stopping the intake from tightening down all the way.

and like it was mentioned before, take the springs off the cable. the bigger one goes on the cable housing to act as a heat shield for the housing, and the smaller one isn't needed as a return spring. it'll save some wear and tear on your wrist.

where the cable goes into the carb at the top, it looks like it's sticking up kinda high. mine has about an 1/8 or less of the silver cable end sticking out.

make sure yours is seated in there, and moves around smooth. once, on mine, the cable pulled up and stuck for a minute, causing hi-revs.

keep trying, we'll figure it out.

i suspect it's an airleak somewhere, probably the oil seals... better check it out... when there's no idle, i check for airleaks first before messing with the carb...

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It's more than a hobby, it's my transport.

Caution: This hobby is habit forming.

I posted something last night, but I guess the computer ate it...As far as the thing dying when you pull the clutch ALL the way in. Maybe the set screw is rubbing against the clutch cover and killing the engine? Pop off the cover and have a look.

The other problem is an air leak from the sound of it, and I would look at that funky lump or weld or whatever is on your intake. It only takes a pin hole to muck up the works.

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If it ain't broke, and you mess with it long enough, it will be.

Excellent advice there, bairdco.

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If it ain't broke, and you mess with it long enough, it will be.

Sorry I am new to this terms...what is the boss? As far as the throttle goes..It springs back really good and is not short.
Thanks