Hello Guys: Hope someone can help me with my problem. I Came into my shop to find Gas all over the shop floor under my 71 RT1. Upon inspection, I found the petcock was not cutting off and leaking. Ordered a rebuild kit for the petcock and solved that problem. But tried starting the bike and it flooded till the point Gas was running out the exhaust port on the jug. So, I removed the carb multiple time, checked the float level and needle and seat which was OK and working properly. Everything in the carb looks great. I installed a kit last summer and it ran great. I have disassembled the carb several times and studied it until I give up. When I kick it over, Gas starts running out of the exhaust port at the jug after a few kicks with the pet cock on or off. Just am at a dead end now. Any help would greatly be appreciated.

Even when these bikes were new what you're describing often happened if you just forgot to turn off petcock

Use caution kicking over if case if full of fuel as you can damage crank seals due to hydraulic pressure. 

I had this happen to me many times as a kid with my LT2.  The process I developed was to remove the gas tank and spark plug.  I'd carefully get the piston to BDC...  at first i'd use a piece of stiff wire in the plug hole to make sure piston was at or very near bottom of the stroke. 

Then I'd roll the bike into the grass in the backyard and lay it down on its left side.  Then I'd slowly tip it upside down and gas in case would run out spark plug hole.  *Piston must be at BDC or gas will be trapped under piston*.

Once might be enough but I'd usually lay bike back down on side and repeat tipping it upside down as sometimes more gas would come out.

Then I'd get the bike back up on it's wheels, install the spark plug finger tight (mostly just so it was easy to remove and check/replace), and kick like a madman with the throttle wide open until it at least popped.  Usually it would run for a second or two, Often I'd have to swap spark plugs to a dry one once or twice. 

If you have a hill and a friend, push starting in gear worked much better than kicking.  Don't forget to turn on ignition switch!

Then I'd install tank, petcock on, and ride!

P.S.  I used the grass because it was soft...  that ended when my Mom figured out where all the brown spots in the back yard were coming from!  You could also use something like a moving blanket and with an RT, best to have help.  Just make sure to do this OUTSIDE in a well ventilated area.  Gasoline is very flammable... a friend caught their garage on fire when fumes from gas he spilled in garage were ignited by water heater 15 feet away.

It happens with the petcock off? I'd pull the fuel line to validate that it's not leaking in the off position. Other problem could be sticking floats. I'd double check float height and needle/seat condition. Maybe some small imperfection is letting fuel flow.

Let me add that I seriously doubt you have a continuing problem with the carb or anything. 

The problem is you flooded the hell out of it with the bad petcock and you simply need to "unflood" it now and all will be fine.

Unless you're like I was and forget to turn off the petcock. 

Petcock is working properly. Rebuild kit installed. Gas is off in the off position and runs in the on and res. position.

Petcock is working properly. Rebuild kit installed. Gas is off in the off position and runs in the on and res. position. Have been into carb multiple times. everything looks good. got another carb kit ordered.

No gas appears to have gotten into the crank case. Drained it and a quart of oil is all that came out. 1000 cc's. Too much gas has got to be coming from the carb. But I can't find why. Float level is correct. Needle and seat is cutting off flow when bowl is full to proper level. Maybe something wrong with the choke plunger,?????

What you drained was the transmission.

It's a two stroke.  No easy way on your engine to "drain the crankcase" except by a process similar to what I described or engine disassembly. 

If you pulled the top end, I guarantee the crankcase part of the cases will be full of fuel. 

OK. Mark; I will try your method. Makes sense to !!!! Thanks again

Me being lazy I just go for the easy option & drop the pipe then with plug out I push it around the yard. Blows it out & makes mess which will hose off ok. Just be sure the ignition is off to avoid stray sparks igniting fuel. Another way is with carb off & being piston port RT1 get piston at TDC or above the inlet port then slide a hose in & down into the case & suck it out, easy. On suzuki quads I've replaced  few vacuum fuel taps over the years as  they get a hole in the diaphram then spill fuel down the vacuum line into the motor. But--always thought one of those taps (fuel cock) would work on any DT/RT as the mount holes line up by memory. May need to shorten the stand tube for the on position as is quite tall I think. Then next problem is tapping a vacuum hole in the cylinder. Would be easy enough to do I'm sure. Main thing is does it flow enough fuel, which I'd think it would. Come to think. Various big road bikes use vacuum taps so easy to find one. So long as you have it on reserve or the on possition & not the prime possition it'll never flood again. Regardless it should never flood with fuel left on in an ideal world unless the side stand (kick stand) is bent so much that the bike leans way over past sensible limits.