After getting my brand new carbs cleaned, replaced fuel lines and fuel petcock, replacing the spark plugs, replaced fuel tank with rust free and no leaks, new fuel tank petcock O-rings. Not only is my bike getting too much fuel it only runs at 50+% choke and it wont go past 70mph.

So far I havent checked the idle screws/knob. I havent determined if the Vaccuum lines are appropriately hooked up. I have both the Suzuki manual and repair manual and there are no specifications to this. The only thing I could find at all was some guys approximation on the internet..

Still I dont understand why it wont go above 70mph

What year is it, and are there any other symptoms like stuttering or bogging? It might be a fuel vacuum hose. I've seen quite a few people on here that get cross winds across that line, which prevents fuel from flowing properly. That effectively makes the bike run lean.

Quote from: JAS6377 on January 18, 2014, 03:15:07 PM
What year is it, and are there any other symptoms like stuttering or bogging? It might be a fuel vacuum hose. I've seen quite a few people on here that get cross winds across that line, which prevents fuel from flowing properly. That effectively makes the bike run lean.

It is a 2005. Bogs down between 6000-7000 rpms in every gear. Ive taken it out on a long road and it doesnt go over 75mph in top gear. The bike runs extremely rich actually and idles around 3000 rpms with full choke on.. As stated backing the choke off below 50% causes it to die...

There is one vacuum line that runs to the Fuel Petcock. Its possible there is an air leak there. But Im not sure what you mean by cross winds??

The cross wind issue is about the carb breather hose. If that's not stuffed behind the battery (where it's meant to be), crosswinds (or any wind ) can pressurize it enough to stop the fuel flow, therefore starving your engine. But I don't think that's the case if it doesn't depend on speed, but rpm.

The choke is a fuel enrichment circuit. Also called the "starting circuit". It adds more fuel by dumping extra fuel right intothe intakes.
If the bike dies with the choke off then
1. The idle screw (also called a "throttle stop") needs adjusting
2. The pilot jets might be dirty, so when throttle closed there is no fuel unless the choke is on.

^ I tend to agree...

Somethings the OP has stated are conflicting with one another... might just be an issue with terminology though...

- Bboy

As adidasguy pointed out, if it was running too rich, then you wouldn't need the choke to keep it running; that is indicative of the idle being too lean.

Could also be an issue of the idle/mixture screw setting or wrong jets for the intake/exhaust configuration.

@OP, what jet sizes are in the carbs and what exhaust and filter are you using?