Put the filter back on, it works like a choke (somewhat) if it still over revs take the boot off between the head and carb look for cracks, boil it for 10 min put it back on and clamp it really well that usually will fix the air problem
your fast idle on your carb may be stuck I've not seen one but you may have a _non standard carb, you do have a Kienen carb right?

Congatulations it almost as good as..... child birth when you get an inoperable machine back on its feet.

 

Yes I'm stoked, just took my first ride on the beast, have several more things to do with it before its really ready, but I couldn't help myself and took off down the street! Feels fabulous to resurrect it, darn thing is 23 years old and I was told by the Kawasaki shop that they wouldn't work on it and they even discouraged me from doing so, told me it would cost a lot and I couldn't get parts, neither was true!

Yes I have the Keinen carb with the fast idle mechanism, which I haven't done anything to. It does appear to engage when its fully choked.

Will boil the intake rubber tonight and see if that improves. Adding the air filter didn't help much. I will update here afterwards and let you know how its going tomorrow.

Trent

 

Once your done go show 'em. The sad part is its worth almost nothing other than the smile on your face.
When you can find them they usually sell for 400 to 500 bucks tops in really good shape. If it said Honda you can almost double the price you'll love the distance you can run on a tank of gas though, you can run 150 + miles without a fill up, but you don't have a reserve so don't run out When you had the slide out of the carb did it have rough spots / divots from the idle screw? you may have to file those smooth, very carefully, or use a small grinder tip on a dremel, the slide has to be just about perfect to function right, never forget its 23 years old and probably had the poop run out of it for 15 of those years.

 

Hey rode it again today after boiling the intake gasket, that didn't change much if anything. The throttle slide is nice and smooth. I'm beginning to wonder if that fast idle mechanism on the carb may be causing the rev problem. Don't know what that does, other than it obviously moves a plastic tab in the throttle body and that tab moves the slide up the body a little. Do you know if that fast idle does other stuff inside the carb like open an air passage? I can't tell and am hesitant to take it apart based on the diagram I have in a Haynes manual.

Thanks, Trent

 

Not really, all of my carbs only have the 2 jets, and choke, slider. I don't have one with that feature. What happens when you choke it? does it still rev out of spec?

 

When I choke it it does rev down, I'm riding it with the seat off and using the choke as a throttle.

I'm thinking about taking apart that fast idle thingamajig, seems like the most likely culprit to me. Will also play with the air screw a bit, but it is set to two turns out, which is what the Haynes books says is right.

When I initially set the air screw, I tried to back it all the way out and off the carburetor. It didn't want to come all the way off, according to the drawing I have there is a washer at the end of the screw, do you know if that prevents it from coming all the way off? I think so....

Thanks again! Trent

 

it does if its like a Mohave 250, you can pop the washer off from the inside, but its a bear to put back together I'd look at removing the "fast idle" feature if at all possible, or, talk to a tech at the bike shop and get their opinion,
Is your cable ok? not hanging up?
does the slider in the carb go all the way down?
Is it hanging up in your thumb throttle.?
Now it sound like the slider or cable is binding or needs to be reset or needs adjustment.

 

Seems to be running better tonight, just went for a ride. I changed the oil again yesterday. Carb/Throttle were a lot better tonight until I stalled it out and my battery choked. Gotta get a new one.

I will run it some more and see if I can shake those cobwebs out. Will update here in a few days.

Thanks for all the help!

Trent

 

Hey, update here. I replaced the battery with a new one. Checked the Haynes book for specs, called for a 12V 12 Ah battery with specific gravity of 1.26 at 68 degrees F.

I found one that matched that spec exactly. Hooked it up and immediately started blowing the main fuse (20 Amp). I've been through all wiring looking for shorts, found nothing. Even tried one 25 amp fuse and it blew immediately. Something wrong. Any ideas?

Thanks, Trent

 

?You're using a Yasua 12L 14L or something equivalent, right? Your old battery didn't blow fuses your new one does, suggests to me that either the cables are on backwards or something.
Take the battery out, ground the ground to a metal plate ground a battery charger to the same plate, using gloves, faceshield, etc and on as low a setting as you can do touch power to the positive if the guage on the battery charger; if it spikes you have a battery problem if not start checking the wiring around the battery, something is screwed up when you removed the battery, as well, if you took the body off check the tail light wiring to see if you pinched it