My cousin had an old 81 honda 200 3 wheeler and he was messing with the needle and moving the little spacer on needle and i was wondering what the difference was having a jet kit or just moving the fatory needle. Because i was wanting to do it to my 2001 warrior. Just let me know

 

If it runs good leave it alone. There is no point messing with things unless you have made modifications and know what you are doing!

 

Moving the clip changes the amount of fuel the carb mixes with the air. The needle is from 1/4 throttle to 3/4 throttle (approximately).
If your Warrior has not had any significant mods to improve the air flow (exhaust, cam, porting, air box, etc..) then there is no need to adjust the carb jetting. More than likely it will run worse !

 

Truckracer, I like your icon. He is also right, but let me elaborate:

Look at your needle. It is tapered. Now open the throttle halfway and look at where the needle goes into the dump tube (the hole that goes into the bottom of the carb). If you keep the same throttle position, but raise the needle, the needle will be at a differnent part of the taper, and a different diameter. This smaller diameter lets more fuel come out of the dump tube, and since you are still moving the same amount of air (throttle still half open) you increase the amount of fuel in your air/fuel ratio. Move the needle down (move clip upward) and you decrease the amount of fuel.

If you aren't familar with basic jetting and dialing in your air/fuel ratio, then it is best not to mess with the needle. After you pipe and such then change jets, you can use the needle to fine tune.

 

Austin...

Here is a real basic link on carburetion and what each component of your carburetor does....I'm sure you're already aware of most of this stuff, but there are some pretty good charts for diagnosing problems at different throttle positions, etc., if you ever have a question as to what's up with your carburetion.



Carbs

 

Dunescreaminmama, that is an awesome page. Also, check out NAC'S racings newest catalog. They have an excelent diagram of fuel circuit vs throttle opening.

 

Cool AlkyburninX! Thanks! Do you know if they have that available on line, or do you have to go buy hard copy somewhere?

thanks.

 

I first bought from NAC's a couple of years ago. I can't remember if I had to place an order or if they sent a free catalog. Go to www.nacsracing.com and see if you can get their catalog. They have anything you need for TT, MX, CC racing. They are the largest Cannondale race team. Their cannondales are set up by a guy about 30 minutes from me.

 

Thanks Alky...I went to the site, it doesn't say whether you can order a catolog or not on their home page, but they do have an email address, so I can email them and ask.

Thanks again!