some residual gas probably clogged your jets.

Pull the cap off the carb where you plugged the vacuum port, and then find a way to squirt a bit small amount of gasoline into the port (teaspoonful).  Then replace the cap and see if the bike fires up for a second or two on that small amount of fuel.

If it does....then you know it is a carb/fuel related issue that is keeping the bike from starting (not a compression or spark issue).

That tells you that no fuel is getting to the engine through the carb.  So the fuel tank, petcock, fuel line or carb could be causing you a problem.

Generally the problem in storage is the pilot jet or main jet gets gummed up and will not flow any fuel.  Since you said that fuel will flow out the float bowl drain....I would say you need to drop the float bowl and clean the main and pilot jet as a minimum.  On something like that I would most likely take the entire carb off for a cleaning and thorough "look through".

I pulled the carb out and took it apart.  A little dirty but nothing real bad.  I took both main and pilot jet out and i could see they weren't clogged.  I can see through the hole for the main jet into the top of carb.  Should i be able to see light from the top of carb through the slot for the pilot jet?

That's good that the main isn't blocked. But, the bike doesn't start and idle on the main, so the idle and cold start circuits could still be gunked up. The best thing I've ever come across for cleaning carbs is Yamalube Carb Dip. I think it's meant for ultrasonic cleaners but works really well just for soaking the carb in. It's a bit $$$ but you can store it and reuse over again many times. You soak the carb (overnight works well) then rinse it in water and blow dry the passages with compressed air. A piece of soft wire (fuse wire is nice) is a good tool for poking around to loosen blockages.
FWIW when I lay up my bike I drain the bowl then run it til it's dry. I don't have any problems starting up even a year later. My 2c and YMMV etc.

jspace wrote on 06/22/15 at 15:01:10:


No....the Pilot circuit snakes through the carb, goes through the idle mixture screw passage, and eventually comes out in the holes at the top of the carb throat on the engine side of the butterfly.

The hole in the Pilot Jet is very small......but you should be able to see some light through it.

i cleaned every bit of it i could with berrymans carb cleaner.  i did not take the float off because i couldn't get that pin out thats holding it in place.  Put everything back together and still nothing! I think i'm going to try soaking it overnight in some carb dip.  Not quite sure what to try next if that doesn't work.  The float looked ok and the float valve moved easily.