Anybody have any experience with Mikuni carbs on 454's?? I know they were crap, or something about them was, but I'd like to know exactly what the problem is with them. This one in question obviously needs a float rebuild and maybe a new vacuum slide. A lot of abrasion on the slide as if its dragging. Also, float sticks and just pours gas out of the overflow. I'm guessing its either the float is shot or the overflow valve is. I guess I'll be tearing the damn thing apart again for the 5th time in the last 2 weeks.

Thanks for whoever gave me the valve specs. The exhaust was right on and intake was very close even after 5 years and 1800 miles. I just loosened up the intake a bit to put them in spec with the exhaust.

 

I have a 454 and I bought carbs on e-bay. Mine had sat for 7 years. The carbs I bought where 4 a ex500 and they work fine except u have to change jets

 

QUESTION- I need to remove my carb from my 454 to work on it. How do you remove the choke cable so I can get the carb off? It looked like a small nut on the carb body attached it but I could not fit a wrench on it.

 

Did you never ride it after you bought it? Or are you talking about a truck or car 454 V8 engine??? Because the first AC454 came out in 1996 and that was 7 years ago. Also, what is a 500ex??



On that plastic nut for the choke, I use a pair of needle nose looking vice grips, and I use them pretty much like a pair of pliers. They do the job. That thing is a pain in the butt too. Regardless of what bike you have. Same thing on a Rubicon, and AC500 as well as a Grizzly 660, because they all have that crappy little plastic nut. I used a wrench on it in the past but it would just strip. Found the vice grip to be the best, and just take it a little at a time. Its real slow going. Getting it started back on isn't any fun either.

Oh, and I got the piece of crap running finally. Took it off again and jacked around with the float until I figured it was functioning right. Got lucky and it all worked out. Right now I'm charging up a new battery and gravity bleeding the brakes. Should be up and going again sometime tomorrow. That is, if I can get all of the skid plate bolts out that broke off up inside the holes. Thats going to be fun.

 

sorry, the 454 I was talking about is a kawasaki 454 ltd street bike

 

ok, cause that was sounding wierd for a second.