she won't start

[canuck cruiser]

a big thanks

Thanks so much guys, I am going to get into the carbs after the weekend, damn wedding season,

I'll let you know how it goes.

Btw, I am planning an all out attack on her this winter, with a complete strip and rebuild, should be fun. I am sure I will spend many nights perusing the great info and resources on this site.

Thanks again

If I ever learn how I will post pics someday, I've got some great shots of her upside down when I fixed the tranny.

Jason

[canuck cruiser]

so far no good.

I took apart the carbs last night and spparyed the s$#t out of them. Took the main jet out of the carb and and it was clean. Didn't have a driver to take out the pilots so I just sprayed them like crazy.

Everything looked pretty good so I reassembled.

Put them on the bike and it wouldn't start, a couple of chugs like it wanted to but the only thing I got was the loudest backfire I have ever heard.

I looked at the presyncronizing tip with the twist tie. Before I touched the adjustment screw I couldn't get the twist tie through, as if they were closed before any throttle application. Are the butterflies supposed to be closed tight in the idle position or should there be a little gap.

Is this normal. I imagine I have to do carb clean #2 with the right tools, but could there be a mixture issue as well.

thanks for some insight.

[Ken Talbot]

Re: so far no good.

Originally posted by canuck cruiser
Didn't have a driver to take out the pilots so I just sprayed them like crazy.

So that counts as the first cleaning of your 'triple clean'. Once they're plugged, everything has to come out/off for a proper cleaning. Pull them off again, get the proper driver, and get the pilot circuit clean. How did you make out with the orifices in the bottom of the float bowls?

[TopCatGr58]

Hey Canuck,

Like what Ken said, there are little holes in the sides of the pilot jets and that's what gets all gummed up and clogged, so spritzing cleaner down the hole doesn't really touch them.

Secondly, you have to twist the main idle screw to slightly open the butterflies enough to put the twist tie in between the butterfly and carb throat. However, PGGG posted a nice photo illustrating another technique, using the ability to just see the butterfly partially closing/covering up the most forward of the 3 holes in the front upper part of the carb throat, this appears to be more precise than the bread tie method, and you don't have to mess with the bread tie. If you do still use the bread tie, once you get them all positioned and presynched, then you turn back the main idle screw to close the butterflies otherwise you'll have a 4+Krpm idle when it lights!
T.C.

[canuck cruiser]

really stumped, or stupid you pick

OK, so I took the carbs apart, all of it. Took the pilot screws out, the air pilot, the main jet, the screens under the float needle, soaked all the metal stuff and reassembled. It all looked pretty bclean, no gummed holes or screens.

Tha bike started but only with throttle. and still would not idle. and as soon as I let go of the throttle it will die. It does not sound very good when it is running, let out a backfire, and only pipe# 2 gets hot, this time 1, 3, and 4 was cold.

What kind of demon has posessed my baby. I am running out of time this season to ride and getting really frustrated.

PLease help, I know I ask alot but you guys know everything.

Thanks,

Jason

[EZMoney]

Hey Cruiser
Looking back in the thread, did you change the plugs before you started it up and this problem started?
In the spring I changed my plugs and put everything back together and was absolutely possitive I had it right. Started the bike and it ran real rough. I couldn't get it to run as well without holding the throttle and it backfired like crazy. ran it in the driveway for a while like that and it wouldn't get any better. Them I noticed that 1 & 3 were cold. Trace the wires back and make sure 1 & 4 come off one coil and 2 & 3 come off the other. Just a thought.

[canuck cruiser]

Hey EZ,

Nope didn't touch the plugs or wires. Took one or two of them off to look at them puzzled wondering if they are working. Have not tried to ground them to the engine yet to see if they are sparking, Maybe do that next.

Any other sugesstions?

Thanks,

Jason

[TopCatGr58]

Hey Canuck,

SOunds like you've gotten the Pilot and main circuit cleaned, but did you also ensure that the little jet in the float bowl was clear? That's what will allow it to run during the "choke" process!

Are the bowls getting fuel?? Petcocks working properly?? Pilot screws 1-1/2 turns out? Yes, check plugs, replace as needed.
T.C.

[canuck cruiser]

a little clarification

Hey TC,

Can you give me a little more info on the little jet in the float bowl? Where would I find it to see if it is clean? When you say pilot screw 1 1/2 turns out, do you mean pilot in the float bowl or air pilot (I think it's called ) on the round part (sorry can't think of it's name ) where it connects to the airbox. Both seemed to be seated when I took them out, but maybe it was just stuck threads.

Thanks for clarifying.

Jason

[John]

TC's not here right now

But I may be able to help. The starter jet is in the side of the float bowl. It is the hole that the thin brass tube that projects into the bowl area fits into. The pilot screw is on the front, top of the carb body, right behind where the rubber carb bott attaches. It controls fuel, not air. A good rule of thumb is if it's behind the carb, it controls air. If it is in the front of the carb, it controls fuel. The part of the carb that sticks into the airbox boots is called the inlet. All of those jets are controlling air flow to different circuits inside the carb.

[Ken Talbot]

Jason, check out the second page of this thread for a couple of photos of the float bowl spooge hole and some discussion.

HTH...

[canuck cruiser]

The starter jet, is it just a hole or is there a screw jet and when I take the float bowl cover off the brass tube stays with the carb so am I checking the hole underneath the tube on the carb body.

Just thought i'd ask might save me from breaking something.

I am going to tear into them again tonight, might as well chaek the plugs while I am at it although they were new last spring and only saw max 200 km.

Thanks again for the info

Jason

[skids]

The tube stays with the body. You can't really spray much cleaner in the tube unless you work the "choke". And...you shouldn't unless you pull the diaphragms out. The bowl has a jet that is like a sink trap and you need to be the plumber!