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Discussion Starter #1
Hello
Whats the Stock setting for the pilot screw on the VLX 600 year 2002-2004
im cleaning the carbs and i want to check this setup im at sea level
thanks
 

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William_86 said:
Hello
Whats the Stock setting for the pilot screw on the VLX 600 year 2002-2004
im cleaning the carbs and i want to check this setup im at sea level
thanks
For a California bike, it's 2 3/4 turns.

For a 49 state bike, it's 3 turns.
 

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Discussion Starter #4
i want to think that an special tool is needed to move the pilot screw..

or is the screw head broken on this bike??. :(

thanks for the info!
 

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greatbeefalo said:
Is that universal, or just for the 2002-2004 VLXs?
That is for the single carb VLX's (98 and up).

I don't remember off hand what the dual carbs are set for...
If you need that info, let me know and I'll post it when I get home.

William_86 said:
i want to think that an special tool is needed to move the pilot screw..

or is the screw head broken on this bike??. :(

thanks for the info!
Yes, there is a special tool. It's a D-shaped adjusting screw.
I haven't done this myself, but I hear that you can take a .22 casing and
flaten one side and it's the perfect size.
If that does work, cut the blade off a small screw-driver, epoxy the shell
to it, and you've just made yourself a tool.
Again, I don't know if it works, but I've heard many people do it.
 

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I don't remember off hand what the dual carbs are set for...
If you need that info, let me know and I'll post it when I get home.
Yes, I need that info. Haynes manuals are great, but they exclude certain important information...
 

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greatbeefalo said:
I don't remember off hand what the dual carbs are set for...
If you need that info, let me know and I'll post it when I get home.
Yes, I need that info. Haynes manuals are great, but they exclude certain important information...
The initial setting is 1 1/4 turns out for both carbs.

Then, you want to warm the engine to operating temp and adjust
the idle speed to 1200 +/- 100 RPM.

Then, on the rear cylinder, turn the mixture screw in until the RPM drops 50.
At that point, back the screw out 1 full turn.

Readjust the idle speed to 1200 +/- 100 RPM and then do the same
procedure for the front cylinder.
Adjust the idle speed again to 1200 +/- 100.

That's the factory settings. From there, if you get some popping
and gurgling on decel, back each screw out equally, 1/4 turn at a time
until the decel pop stops.
Once you get it to stop popping and find the point to leave the screws,
then set the idle speed one last time.
 

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mechanic turned mine to 4

i just got my bike back from the dealer. i asked them to look into the pilot screw setting cuz i felt my 2002 vlx was running lean. when i got it back he told me that it had never been changed since factory because there was a seal on it and that he turned it up to 4. i asked him why 4 when i read everywhere that it should be 3.. he told me that usually they do 3 on all bikes but that he felt for mine 4 was more appropriate especially with the single carb. it rides great and all but i'm worried that he turned it up too much. any input?
 

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Re: mechanic turned mine to 4

mshest said:
i just got my bike back from the dealer. i asked them to look into the pilot screw setting cuz i felt my 2002 vlx was running lean. when i got it back he told me that it had never been changed since factory because there was a seal on it and that he turned it up to 4. i asked him why 4 when i read everywhere that it should be 3.. he told me that usually they do 3 on all bikes but that he felt for mine 4 was more appropriate especially with the single carb. it rides great and all but i'm worried that he turned it up too much. any input?
Your spark plugs would be a good indicator.

As long as they are a golden brown, you're good.

If they start turning black, then it is set too rich.

If they start turning white, it is running too lean.

But with 4 turns that shouldn't be a problem.
 

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litnin said:
greatbeefalo said:
I don't remember off hand what the dual carbs are set for...
If you need that info, let me know and I'll post it when I get home.
Yes, I need that info. Haynes manuals are great, but they exclude certain important information...
The initial setting is 1 1/4 turns out for both carbs.

Then, you want to warm the engine to operating temp and adjust
the idle speed to 1200 +/- 100 RPM.

Then, on the rear cylinder, turn the mixture screw in until the RPM drops 50.
At that point, back the screw out 1 full turn.

Readjust the idle speed to 1200 +/- 100 RPM and then do the same
procedure for the front cylinder.
Adjust the idle speed again to 1200 +/- 100.

That's the factory settings. From there, if you get some popping
and gurgling on decel, back each screw out equally, 1/4 turn at a time
until the decel pop stops.
Once you get it to stop popping and find the point to leave the screws,
then set the idle speed one last time.
I hate to highjack this thread, but I have absolutely no idea what 1200 RPMs sounds like. I have one that, according to the AZ DOT, is running rich enough to make my own little hole in the atmosphere.

My readings are:



After which the mouth breather at the inspection location informed me that I was "running waaaaay too rich!". I admit, it smells a little rich, but the previous owner had it passed a year ago.

It has aftermarket pipes on it (not installed by me), stock air filter, no idea on any carb work that may or may not have been done. I haven't pulled the plugs yet, I need to go get a socket from Sears.

I thought it wasn't too rich, I am getting 58-62 MPG mostly city driving.
 
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