allrighty!

B

brewtown16

what, me worry?
thanks to PJ for tips and putting up with my noobness, but yet my noobtacular luck has sprung again. after rebuild of the carbs, i also cleaned out the tank, got her on and also put on new fuel lines. she kicked over right on the third try no choke, but she revs way too high, 4-5k?... anyways, i tried playing with the idle screw on the throttle side, and also the mixture needles at diffrent seatings with no such luck, but i will get a ever slight diffrence. i dont think its pulling air from after the carb, but i could be wrong. i also don think the 12 degree day would have much to do with it either. i am just at a loss and feeling very confused. anyone have an idea or what i can try doing? ...ill post up a video tomorrow.
 
ah, also forgot to mention... the throttle sticks a little bit.... could it be the butterfly sticking open even though the throttle control returns?

and also, when i rebuilt the carbs, when i used the new float sleeve, i used my orig. float needle, but used the new seat, the new needle didnt fit (allow me to set proper float hieght) for some reason. the sleeves were the same hieght though...

just fyi.
 
Try disconnecting the throttle cables and turning out the idle screws like you were going to sync the carbs. Check you mechanical advance behind your points plate to make sure the springs aren't too loose. I had to tighten mine up because is would advance itself from idle.

Is this for your 450?
 
I had this problem with my cb450 as well. It was the butterfly sticking open. I cleaned them a few times and it still didn't fix it. Finally I had to take some sandpaper and rolled it up and ran it through the "butterfly shaft passage" until it would finally move freely. I could tell it was sticking though so this may not be quite the same as your problem.

Corey
 
no, for the 360. i didnt touch the points, but they need to be tuned, or i was thinking of replacing them all together, seeing how they havent been adjusted or replaced in about 3k miles.
 
like i promised.

<embed width="448" height="361" type="application/x-shockwave-flash" wmode="transparent" src="http://i283.photobucket.com/player.swf?file=http://vid283.photobucket.com/albums/kk298/Brewtown16/CLIP0001.flv">
 
Every time my bike has revved up by itself and then died, it was because it ran out of fuel in the bowls. Either from lack of fuel in the tank (doofus move) or clogged petcock. What happens is as the fuel level in the bowl starts to go below the jet, it starts to suck air in, leaning out the mixture. When you lean out the mixture, it revs up. But then it doesn't get any gas and it dies.

I'm not saying this IS your problem, but it is something to look into. I know you said you just redid that carbs, tank and lines. Make sure the float is adjusted correctly.
 
well... i *think* i properly adjusted them.... if you could take video? the clymers manual and written directions are quite confusing... man i feel so novice.
 
Flugtechnik said:
Try disconnecting the throttle cables and turning out the idle screws like you were going to sync the carbs.
Click to expand...

I guess what I meant was, go through the process of syncing your carbs, but don't hook the throttle cable back up. If you have them synced properly and the idle stops adjusted right, the bike will idle without the throttle cable. Well, I'm assuming the 360 carbs are similar to the 450 carbs. You know what assuming does. ;)
 
I may be reading too much into the posts but it sounds like this is all happening when the bike's cold... don't adjust anything until it's had time to warm up. (except for when it doesn't start at all... then you can mess with it)
 
mysta2 said:
I may be reading too much into the posts but it sounds like this is all happening when the bike's cold... don't adjust anything until it's had time to warm up. (except for when it doesn't start at all... then you can mess with it)
Click to expand...

ah, there in lies the problem... this second time around she didnt even run at a fast idle like that, just sputter and die... even after me huffing and puffing the engine was warm.... im going to fill the tank today and go from there, then try to adjust.
 
Here's my .02 cents..
I had the exact same issue with the carb on my 185 after I took it apart for cleaning... It turned out the little clip on the spring and needle(sorry, I don't know all the technical terms, I have a bad habit of just tearing things apart and then trying to figure out how it all goes back together...) was just in the wrong place.... I shut the needle down a little more and BAM! ran great after that...
 
Are the throttle linkages on the 360 attached to each other or separate like the 450?
 
separate. ill take video in a little bit... got it running before... the petcock had some crap in it, but she still runs hard on the right side, and pretty high RPM dispite playing with the idle adjst.
 
Do you know the syncing procedure I am talkng about? Where you loosen the trottle cable and back the idle stop screws all the way out so the butterfly closes all the way?
 
so some good news, and some terrible news. ran down to my local bike shop, and bought some manifold boots for the carbs... the old ones were cracked, got em on and adjusted the carbs, ran much better, but the right was still a little heavy (that diaphragm has to be replaced) but it was driveable none the less, and the carbs werent too off, but they still needed to be sync'd. figured i would take her down the block since its a gorgeous day. before i went out i adjusted the play in the clutch, made sure it wasnt too tight, then took off. not even the second stop sign down the road, i think i snapped the clutch cable :mad: or at least i think i did... i heard a *click* and shes stuck with the clutch engaged, so i couldnt roll start it i couldnt even move the cable after i took it off the lever.... if it wasnt the cable... what the hell was it then? im getting so frustrated lately... i hope i dont have to pluck the motor again :'(
 
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