reving out of control

[Styleisdead]

I'm working on a CL160.

Just got it running but I'm having some problems.

1) After it runs for a few minutes, it starts to rev out of control. Nothing short of turning it off stops it. I know I've read something about this on here before and I tried a search and I tried reading through the forum but couldn't find the thread.

2) Probably related to the same problem. New plugs are fouled. Left Plug DRY and dark black; Right side WET and dark black. I was expecting them to foul since I but a little oil into the cylinder head before I started it but I thought the dry/wet might mean something.

3) I'm getting a little whitish smoke from the left side muffler and a little unspent fuel from the Right side muffler. Although the pressure pattern from both mufflers seem to be consistent.

4) After ridding it around the block a few times , then tightening the two (air?) screws on each of the carbs (all the way in, then 1 1/2 turns out) When I put the bike in gear, the bike dies as I let off the clutch unless I hold the throttle full open and even then sputters, backfires and doesn't really pick up any speed.

Any one lead me to the thread where this was discussed or be willing to discuss it again?

Thanks,

Joel

[Loudo]

Hi, Joel...I don't know if my posts on a similar problem are what you are referring to, but I was dealing with the over-revving issue in my thread under "Restoration Projects" entitled "Fresh Meat!" starting on page 8. The problem hasn't reoccurred and I don't know which of the minor "heres and theres" I did to correct it (if anything) but I did receive excellent advice. The problem could be your mixture leaning and is often due to air leaks. Sometimes the carb-to-head gaskets are leaky and need attention.

I would have appreciated how cool this revving sounded if I hadn't been concerned with launching myself through the garage door as I fumbled for the ignition switch, mindful of my grabby clutch and inability to put the bike in neutral. The left hand can't keep a death grip on the clutch AND turn off the ignition. :/

[mike69]

I installed a kill switch on my Dream incase a situation like that occurs!

[Styleisdead]

Hey thanks for the replies.

Loudo, I think it was the "fresh meet" thread. I searched and it came up but as I was lossing daylight and the thread was long I skipped it. But after going over it, Thats the one. Also, makes sence that that would be the problem. Come to think of it, I had totally forgotten that I had this problem on an old 65 Vespa that I was restoring years ago, Same promblem, same sollution.
Now to try to figure out which carb and where the leak would be (between carb and manifold; between manifold and insulator; between insulator and engine) Is there an easy way to do this?

I won't have time to get to this for a couple of days but With your help, I'll get this bike road worthy...

Thanks Again,

Joel

[Styleisdead]

I'm back :) After working about 140hrs without a day off since my last post. I finally have some time (and money) to work on the bike. I just took the carbs back off sealed the space between the insulators and the engine with a silicon high-temp (600 f) gasket which seems to have taken care of the over revving problem. And no more smoke.

Now I'm messing with getting the carbs tuned in. Just went through about a half tank of gas just on that. (thats all I had in her so I'm about to walk to the corner to get more)

Odd thing; the plugs were pretty fouled when I started today (but not to bad) and I just checked them again and they were almost clean... guess I was running real lean for a little bit??? Well anyway, they're a nice coffee and cream color now.

God, this feels good.

Thanks for all your help so far.

I'll let you know whats going on with the bike as it comes along (I'll be needing help with the electrical... The head light comes on and goes off, the high beam never comes on and the winkers on one side works sometimes and the other side never works, no tail light or brake light so far)

Joel

[Styleisdead]

ok, got it idling fine BUT now when I pull the throttle the engine dies??? That's new... And Something else that's concerning me is, the right side exhaust is blowing hot air while the left side is blowing cold air(also new), and it seems I am in fact getting a little smoke from the the left exhaust.

Any idea's about this???

Joel

[jwbert]

No fuel flowing to the left carb, esp common if gas tank is getting rather low. Take your fuel lines off at the petcock and empty fuel out of the lines. Blow into the lines with your mouth, after wiping ends of lines clean, you'll probably be able to blow air into the left line indicating an empty float bowl, but not be able to blow anything into the right line, bowl full and float valve closed. Verify fuel flow coming from both spiggots on the pet cock, maybe need to put on reserve or add more fuel to tank, reconnect and fire it up. This happens a lot, usually to the left carb, no-one seems to know why, but I have found this gets the fuel flowing again.( this may be somewhat ill advised, as I have on occasion tasted a little fuel if in my haste, I don't get the lines clean and drained, but then thats me) jwb