SuzukiSavage.com - A Very "Interesting" Thing...Continues

Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #30 - 10/30/07 at 07:35:27

Reelthing wrote on 12/31/69 at 16:00:10:

For real, the worst case I've had of running ok goes to crap after it warms up was a sticky slide - in my case cause by a greasy finger prints - formed a little ring at the bottom, after the carb warms up the metal expands and the slide would hang/drag going back down - of course if your sucking a little through the vac line it'll sure go rich.

Rich is definitely the issue, but I took the vacuum line out of the equation yesterday. It was dry but I plugged the carb nipple and let the tube just hang there for now.

The wife's little "Oh yeah..." is the key. One thing that I did yesterday was to remove the baffle and it was very sooty...this after I had switched the main back to a 155 a couple weeks ago..

I do know that I've followed Julie on a couple occasions when she had forgotten to turn off the choke. You can smell a rich running bike if you are following.

SO, I'm gonna go back in the carb and check the low speed jet, the slide, and the main jet (as some of you mentioned, too)

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vtail

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Re: Very "Interesting" Thing Just Happen
Reply #31 - 10/30/07 at 10:40:33

Is your decrompression system working Oke? A short could activate the decomp device and open the exhaust valves which could cause suction in the mufler since it's easier than sucking thru a filter. This can cause a wet plug since the mixture becomes overly rich! For example, During start it works oke ,Than vibration causes short to activate the decomp, which opens exh valves, which make it quit Wink

Could be in your starter button or selenoid Wink

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'07, White spacer REMOVED, 152,5 main jet, K&N drop-in filter, Mac exh, Sigma 906, ENM PT15B2 tach, factory s bags, shield, backrest/lug rack, crashbar, Kuryakyn 7980 ext hwy pegs,412-4233C+'09 C50T

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govmule84 Full Member Offline Scooter Trash Posts: 119 Central Missouri Gender:	Re: Very "Interesting" Thing Just Happen Reply #32 - 10/30/07 at 11:21:46 I've got to vote for vapor lock, too...try leaving the gas cap off for a while it idles? ...although this is sort of like calling up the doctor, and going "Hey! My tummy's killing me! What's wrong?"
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Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #33 - 10/30/07 at 12:34:02

vtail wrote on 12/31/69 at 16:00:10:

Is your decrompression system working Oke? A short could activate the decomp device and open the exhaust valves which could cause suction in the mufler since it's easier than sucking thru a filter. This can cause a wet plug since the mixture becomes overly rich! For example, During start it works oke ,Than vibration causes short to activate the decomp, which opens exh valves, which make it quit Wink

Could be in your starter button or selenoid Wink

Don't really know if that is possible. I'm pretty sure that when the starter button is not activated that the decomp solenoid is totally dead.

Reason being that the decomp module is a timer and it energizes the decomp solenoid for short period (milliseconds) ahead of the starter relay. After the engine is running (signal from ignition unit), the decomp module turns off the solenoid. The hot or positive would have to come from the decomp module.

Gotta remember too that the engine has been running 2 times. Perfect start, smooth idle and then fouled plug both times. The only thing that changed was that I cleaned the plug after the first time.

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Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #34 - 10/30/07 at 12:40:06

govmule84 wrote on 12/31/69 at 16:00:10:

I've got to vote for vapor lock, too...try leaving the gas cap off for a while it idles?

...although this is sort of like calling up the doctor, and going "Hey! My tummy's killing me! What's wrong?"

I'll double check it again, but gotta remember that my first check was to drain the carb bowl. The bowl was full. A clogged gas cap vent would have given me an empty bowl just like running out of gas. Then the engine would have run lean and the plug would have been dry, not wet.

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Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #35 - 10/30/07 at 12:51:36

I just cleaned the carb. Every passage and jet. Blew it out good too. The carb was a little dirty but I couldn't find any clogs or "chunks" of stuff. The choke valve looked a little dirty. Getting ready to measure the float height which looks a little high. Then I'll put that puppy back in there....and then maybe, try again this afternoon...

(PS - I say "maybe" because a guy just dropped off 2 snowmobiles that have been sitting for a couple years with gas in them...and now they won't start. That's 4 more carbs! Geez, I'm up to my butt in fuel problems all of a sudden Tongue

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Reelthing Serious Thumper Alliance Member Offline Fish or ride that is the question Posts: 5397 Houston,Tx Gender:	Re: Very "Interesting" Thing Just Happen Reply #36 - 10/30/07 at 14:04:30 that slide clean as clean can be? curious about the sleds - guess we need to take that to the cafe so these moderators don't jump on us
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govmule84 Full Member Offline Scooter Trash Posts: 119 Central Missouri Gender:	Re: Very "Interesting" Thing Just Happen Reply #37 - 10/30/07 at 14:42:04 Well, I had a '72 Honda that BUILT pressure in the tank. Dunno what that was all about. Drilled a little hole, and it vented fine...it was right after I had cleaned and then....red-koted the tank. Temperature change can cause that pressurization...I dunno. Cheap and easy and quick to check, I guess.
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vtail

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Re: Very "Interesting" Thing Just Happen
Reply #38 - 10/30/07 at 15:07:44

Savage_Greg wrote on 12/31/69 at 16:00:10:

Don't really know if that is possible. I'm pretty sure that when the starter button is not activated that the decomp solenoid is totally dead.

Never say Never. Those electric gremlins are Smart. If it can break it will break. The decomp is just an electro magnet. If it gets power even intermittently due to a short, it 'll cause the exh valves to open and could therfore pressurize the carb causing the choke to act up Wink

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'07, White spacer REMOVED, 152,5 main jet, K&N drop-in filter, Mac exh, Sigma 906, ENM PT15B2 tach, factory s bags, shield, backrest/lug rack, crashbar, Kuryakyn 7980 ext hwy pegs,412-4233C+'09 C50T

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smokin_blue

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Re: Very "Interesting" Thing Just Happen
Reply #39 - 10/30/07 at 18:36:14

vtail wrote on 12/31/69 at 16:00:10:

Never say Never. Those electric gremlins are Smart. If it can break it will break. The decomp is just an electro magnet. If it gets power even intermittently due to a short, it 'll cause the exh valves to open and could therfore pressurize the carb causing the choke to act up Wink

How does opening an exhaust valve allow pressure back to the carburator? The intake valves would still be closed.....

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Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #40 - 10/30/07 at 20:31:53

Reelthing wrote on 12/31/69 at 16:00:10:

that slide clean as clean can be?

curious about the sleds - guess we need to take that to the cafe so these moderators don't jump on us

Yep, I cleaned it off good and moved it up and down once it was installed. Seemed normal.

Unfortunately, after I got the tank installed I had to start working on those "track bikes" "P

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Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #41 - 10/30/07 at 20:36:04

govmule84 wrote on 12/31/69 at 16:00:10:

Well, I had a '72 Honda that BUILT pressure in the tank. Dunno what that was all about. Drilled a little hole, and it vented fine...it was right after I had cleaned and then....red-koted the tank.

Temperature change can cause that pressurization...I dunno. Cheap and easy and quick to check, I guess.

Well, you know how it is "supposed to not work".

Lower pressure in tank, no gas come out. Higher pressure in tank, too much gas come out.

The tank vent is okay this time (I just took it completely apart for photos about 2 months ago) Tongue

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Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #42 - 10/30/07 at 20:46:21

vtail wrote on 12/31/69 at 16:00:10:

Never say Never. Those electric gremlins are Smart. If it can break it will break. The decomp is just an electro magnet. If it gets power even intermittently due to a short, it 'll cause the exh valves to open and could therfore pressurize the carb causing the choke to act up Wink

Yeah, but the gremlins have to be in the module then, not the solenoid. The module turns it on and off. Do you suppose this is related to Halloween?

The module also turns on the starter relay, and usually if a solid state device fails, it fails open not shorted.

I'm still not discounting valves, but it has shown no weird behavior during starting. Only after idling a little while...and it repeated the same behavior again.

I did have to lower the float level about 2 mm though. I haven't adjusted them ever since new Tongue

I got it back together enough to start it again tomorrow.

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Savage_Greg

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Re: Very "Interesting" Thing Just Happen
Reply #43 - 10/30/07 at 20:51:49

smokin_blue wrote on 12/31/69 at 16:00:10:

How does opening an exhaust valve allow pressure back to the carburator? The intake valves would still be closed.....

Well, maybe what he's thinking is that as the piston goes up on the exhaust stroke, that the exhaust valves stay open even as the piston goes back down on the intake stroke when the intake valves are open...

Just a guess.

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stinger Serious Thumper Offline I love YaBB 1G - SP1! Posts: 848	Re: Very "Interesting" Thing Just Happen Reply #44 - 10/31/07 at 02:02:08 Four very good suggestions: 1)...you didnt use enough WD40 2)....you shouldnt have changed your cam chain 3)....you should call a motorcycle handyman. one must live in your area somewhere 4)...God is getting even with you for callin me Stinker and your mean posts nanananaaaaaaa!!!!
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