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Why My Skunk Would Not Run Right...

Eli69

Eli69

Forum Sage
Past Site Supporter
it took me longer than i want to admit to figure this one out. the bike lost power suddenly on a ride about a month ago. i tested a lot of things before actually pulling the carbs off, flipping them over and opening them up.

the problem:


20170528_131121_zpsrpvfcyoh.jpg



this tiny thing, i don't even know what it is or how it got in there.


20170528_131902_zpsufq1ummm.jpg
 
IDK, but you might want to check the petcock to see if the filters are still there.
 
Had to go in from the tank so I agree with rick on doing some tank / petcock checks. Looks like a stem from a tree bud or something to me.
 
petcock is good plus there's an inline filter. possibly sucked in through one of the vent lines...??
 
Possible. You have the tubes on the vents and ran dwn between the engine and wing arm??? if so, I think thats a pretty arduous journey to get to the bowls.
 
the two top vents are open. no hose on them. i don't remember why, they may have just worn out. but i think i will replace them cuz that's really about the only way something could get in there.
 
Most likely the source. Get the vacuum line type hose and run them over the top of the airbox..or wherever if there are pods. Run them between the engine and swing arm and cut them aboiut even with the bottom of the oil pan.
 
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The only reason the vent hoses should be off is if you have Pods and 4-1 Pipes. Never had problems with mine that way but strange things happen.
 
The hoses also help keep rain and water out when you wash the bike..good idea to have them regardless of the filtering setup in my opinion.
 
I do have pods and pipes. I seem to remember reading that I should remove those vent hoses because of that. I think I'll put some tubing on those vents and see if I notice any change.

At least I know what to look for if this happens again.
 
Yes, the K&N directions say remove the hoses. A year or 2 ago I put in short hoses, just enough so they were looking down. No running issues.
 
I once had a fuel line get clogged between the petcock and the carb (a closed system, no?) by a tiny bug nest. Have never figured that one out. Should be impossible.
 
Been running my 850L with pods and 4-1 with vent hoses on the carbs, no problems.
What is supposed to happen if you do?

V
 
I'm pretty sure the last time I talked to Dynatec about the stage-3 jet kit they mentioned removing those lines and when I first started tuning for pipes and pods I was told the same thing by other forum members. It may not be the GS1000 is affected as badly as the 1100's were for whatever reason they stated. I know I can ride in the air stream from anywhere on a tractor trailer or between two of them them without any problems and have heard people with 1100's complain bitterly about what it does to their bikes with pipes and pods.
 
OldVet66 said:
I'm pretty sure the last time I talked to Dynatec about the stage-3 jet kit they mentioned removing those lines and when I first started tuning for pipes and pods I was told the same thing by other forum members. It may not be the GS1000 is affected as badly as the 1100's were for whatever reason they stated. I know I can ride in the air stream from anywhere on a tractor trailer or between two of them them without any problems and have heard people with 1100's complain bitterly about what it does to their bikes with pipes and pods.
Click to expand...

If you are talking CV carbs versus VM style carbs then pods can be a nightmare to get tuned correctly on CV carbs. This has more to do with disrupting the flow of air at the intake which directly governs the slide operation than anything else.

I really cant see how removing the float bowl breather pipes will have any positive effect on the carbs unless the pipes are somehow blocked or kinked. The downside to having no pipes is the open port lets crap in.
 
You are probably right, my memory doesn't always serve these days and this only pertains to VM carburetors.There must have been a reason but I can't remember it clearly.
 
ya know what made this so hard to figure out was that i knew it was running on less than 4 cylinders but i couldn't figure out which one wasn't firing. at idle all 4 were going fine because fuel was flowing through the smaller jet circuit. so the only time it misfired was under power and ya can't feel the exhaust pipes while you're riding. actually, feeling the exhaust pipes is a crummy and painful way to find out anything. i was wondering if one of those electronic thermometers would have helped find the bad cylinder?
 
I use a digital infrared thermometer to check exhaust pipes and brakes for even and correct operation, you just have to be precise when taking readings, the temp can vary depending on where you point the red dot on the pipes and disks.

Glad you figured that issue out with the blocked jet.

David
 
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