Fuel Overflow

[BKOLFO4]

Another question. . . .Man I will be glad to just start riding!

 

Have problems with cold start. Maybe it is:

 

1. Fresh rebuild, but I have heat cycled twice just at idle. I do not have a compression tester now, but will tomorrow to hopefully rule out compression. Is it hard to start until it is further broke in?

 

2. Gas comes out the overflow tubes/vent tubes. It is not constant, but there is always gas dripping from the tubes when I try to start it. They never drip while it is running, but they always drip a little right after I kill it. When it is just sitting (not running), it never drips. I cleaned the carbs, and the float level was 21mm (without the gasket). Maybe it will need new needles and seats if it sat for a long time with bad gas in it?

 

I am 99% sure it is flooding, because the plus are always wet when I pull them out.

 

V-Force reeds are brand new. I have a 6 position needle, so I moved it to the 4th position (on the rich side; toward the bottom). Is that right, or is it the 4th position on the lean side for the reeds?

 

One VERY small burst of starting fuild in the air cleaner tube, and it fires right up and seems to run good.

 

If compression is good, what elase should I look for other than fuel system?

 

It is the bike in my signature.

 

Thanks!

Brian

 

edit:

I thought I had the jetting in my signature, but it is 380 main and 30 pilot. To keep it idling good for 10 minutes, I have the air screws set about 1 3/8 turns out.

 

I am running Yamalube 2R @ 28:1. 250ft altitude, 80 degrees out.

 

Brian

Edited May 8, 2006 by BKOLFO4

[sheefreak]

Make sure your float bowls aren't switched. One labeled 1-1 goes in choke side carb. Choke will not work properly if not. And double check your pilot jets. Make sure you take them out and blow compressed air through them to make sure they are clean. If you can spray starting fluid and it will fire, it is a fuel delivery issue for sure!

[BKOLFO4]

Thanks for the reply!!! Man this site has been a life saver for getting this used machine back in top shape!!!

 

Checked compression and it was 140 PSI on both cylinders.

 

Once it is started, it seems to run fine, so what are the chances it has an air leak? I used all new gaskets and o-rings when I reassembled the top end. Even has new V-Force 3 reeds with new gaskets on both sides.

 

I am pretty sure it is flooding. . .If I kick it a few times and then pull a plug, the plug tip is very wet like I dipped it in fuel.

 

I will be pulling the carbs tonight to check the inlet seat and needle better and move the main jet needle down one clip. I have it one side toward rich, and the jetting FAQ says it should be one side toward lean for reeds. Anything is worth a shot at this point!!!

 

If my hot rod truck sale goes through, I am going for a single carb setup!!!

 

Brian

[BKOLFO4]

MAN AM I EXCITED!!! Yes I was yelling. Went to take the carbs off and noticed the choke tube had come lose. Put it back on the right carb, and it fired up on the second kick!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Edited May 9, 2006 by BKOLFO4