Quote from: SmithvilleFlats on June 05, 2008, 08:33:56 AM
So am I going to have to replace the petcock or is this setup workable?

The setup looks workable. The important thing is that fuel gets delivered to the carbs. The vacuum port of the carb should be plugged to prevent an air leak.

You can use the float height check to verify that fuel is getting to the carb bowls and to confirm that the float heights are OK:
http://www.bbburma.net/FloatHeight.htm

If your spark plugs are covered in oil, you have bigger problems than incorrect fuel hose routing.

This is a bit embarrassing.
I got the bike running and checked the spark plugs before turning it over again, and what appeared before as oil on the spark plugs I now believe to be unburnt gas on black powder.
The bike also shoots out black smoke which would be consistent with a rich mixture.
Obviously this is much simpler than leaky piston rings or valves, so I'm not upset that I was wrong.
I'm looking into getting new carbs since mine are in a somewhat shady condition.

I'm going to check the float height first.
What else should be checked/adjusted?

Quote from: SmithvilleFlats on June 05, 2008, 08:33:56 AM
So am I going to have to replace the petcock or is this setup workable?

Looks like exactly what I've done to mine - he used a vacuum cap to seal one fuel tank outlet, running the tubing from the reserve outlet to the filter, cutoff valve , to the carb.  Mine works ok, you just don't have reserve warning of low fuel.  Put a filter in that tubing somewhere and change it frequently if your tank is rusty.

I like the blue hoses they look fancy I may go get some. As far as your setup goes keep an eye on your tripmeter cause once you start boging down that means your out of gas. maybe you shoudl go two hoses out of the tank chicken and do a small selector valve so you have both main and res.

So here's what's wrong now:

-Bike starts good, but then randomly revs up to around 7k rpm when given throttle.

-Then, once it starts getting warmed up, it dies.

-Still smoking black.
 
Suggestions are appreciated.