Float height

[Ivan]

I went through this whole deal with a nearly identical setup, but I had a Mac header with a cherry bomb grafted on it.

I found that no matter what you do, it will always stumble a bit on the low end if you have a straight through exhaust. You said Jardine on yours, but has the baffle been drilled out or molested somehow?

I was never able to get it all smoothed out, with the open exhaust. It would run like a scalded cat on the top end though. I put a Jardine spaghetti exhaust on it and the low end was much better and the top end suffered very little when jetted properly.

[DGXSER]

Did the 81 have adjustable needles?

Tod

Not exactly. They were not factory adjustable but I have heard/read of folks slipping an extra little washer in here and there to raise them up.

[xs11widowmaker]

I just put in 120 mains and lowerd the floats. got everything back together and now numbers 3 and 4 are not firing. what could this be? before the 120's i tried 110's and it was firing fine but it starved for gas as the rpms went up. im lost. somebody rescue me. thanks

[Crazcnuk]

"They were not factory adjustable but I have heard/read of folks slipping an extra little washer in here and there to raise them up. "

Many of the canadian models came with adjustable needles, even in 80-81 and. also, some of us have 80-81 with the upgraded needles from MikesXS which are adjustable.

[tarzan]

Widowmaker,
Do you have a fuel line kinked.Those two carbs(3&4) are linked.So maybe you arent getting fuel to them somehow.

[xs11widowmaker]

fuel is coming out of carb4. 1 and 2 is hot and 3 and 4 is much colder. my 1100 has turned into a 550 im really at my wits end. thanks for your help

[DiverRay]

Just me, but I would put 115 mains, and 42.5 pilot jets in. The 3&4 NOT working IS fuel. check vents and fuel lines when the tank is ON. If you can't see for sure, pull it up and S-L-O-W-L-Y let the tank down, checking the fuel line as you do. If it's a Special, try running on "prime" and see if that helps.

[xs11widowmaker]

just got home from work. I will try it tomarrow and let you know. thanks for your help