Extreme Rich condition

[Carter Turk]

Isn't stock main jet size 107.5 and you say you have 112's with no pipe or airbox mods? What about the pilots are they 45's or? Wouldn't that be a bit rich on the top end with 112's?

I heard people mention here about the gas tank vent line being clogged and or the gas cap itself. Maybe try with the cap off.

Putting a hand or the airbox is an attempt to richen the mixture temporarily and would lead me to ponder if the tank is supplying enough fuel to the carbs.

How did you bypass the petcock?

I had a black 750ET back in the day, it was my first bike.

My coils went bad and caused my bike to bog at 5000 grand intermittently and foul plugs.

I'd say keep plugging away at it, but don't call it a POS. Not good karma.

I'm just throwing out ideas to chew on.

 

[HobieSun]

I am not sure about the jet's. I was told by someone that 112.5 are stock. I really dont know what the pilot jets where, I couldn't see a number on them. I don't know about the 112.5, but they said 112 for the main, 170 for the air.

I bypassed the petcock with a funnel and fuel line. IM out of ideas and patience. Thanks for all the help everyone.

 

[West]

One last thing. Did you check that the floats float?

 

[HobieSun]

Yeah, I thought of using them as bobbers at one point but I don't think fish like the smell of gas. Don't blame em...

 

[West]

At least you would get some kind of use out of them.

Other uses:

Hang from auto's rear view mirror like dice.

Use to replace that leaky toilet float.

Stick a toothpick and a triangular piece of paper for a sail & give 'em to your kid as bath toys.

 

[trispeed]

you should check that the float valve seat o- ring is sealing. It's cheap to replace and if they don't seal ( like mine didn't) the float valve and level is bypassed and fuel just keeps flowing past the seat, regardless of any other issue.

 

[Mike Curtis]

Mixture Screws

Mixture Screws

This is a message for Keith , you say the screws should be move out 1 1/2 turns, I just rekitted my '81 GS850GL carbs and turned mine out 2 1/2 turn and it seems to run good with this initial settings. What should I be leary of with these screws out so much & I'm not much of a carb guy.
Do these needle valves provide a fine tuning feature?