VIDEO- How to change your main jet in your carb!

[BuggyMaster]

If you ever wondered what all is involved with changing your main jet in your carb, I made a video to show you. This does not show you how to take it off. It assumes the carb is off and in your hands.

[foxracer45]

do i need to buy a new jet? if thats what its called the new one thing that was longer.

[PatNY]

The shorter one is the Main Jet
The longer one is the Pilot Jet.

If you're putting just the UNI Filter,
you'll need a bigger Main Jet.

[BuggyMaster]

ya, what pat said is correct. You can get the jet from BigE. I know he has them.

[24evanwilson]

how much is a 135 main jet and the price on a uni

[PatNY]

From our Trusted Dealers Sites


http://www.*************************/...R%20AND%20FUEL

[24evanwilson]

awesome!

[RyanFig]

K i just put a uni air filter in, and soon a new exhaust. What size jet do i put in? And is there a longer video on how to get the carburetor off the engine and drain in?

[BuggyMaster]

I haven't made the long vid yet. You have a Carbide I take it?

[RyanFig]

Yup and what do you think the size of jet I should put in the carb?

[BuggyMaster]

When I had UNI, an A9 Cam, and an FMF exhaust, it took every bit of a 150 jet to get the correct AFR. Even right now, I would not be surprised if you needed a 140 with just the UNI. American Sportworks machines are unique in that they run very lean from the factory due to the machining process on their carbs. That is why you have to use what seems like such a large jet. In stock form, they like about a 130. I would actually start out with a 140 and see how it does with that.

[24evanwilson]

do you guys know the size of the carbides main is it the same as the helix?

[BuggyMaster]

same as helix. In stock form it has a 114 main and a 34 pilot.

[24evanwilson]

cool

[RyanFig]

My stock main jet was a 114 on my Carbide I just changed it to a 130

[BuggyMaster]

Ryan, you have an odyssey?

[RyanFig]

ya Fl350

[BuggyMaster]

very cool. My favorite toy.

[Xrims]

How did the 130 main jet work out for ya

[foxracer45]

i used 125 its not in yet but im gonna try it as soon as it gets here.

[BuggyMaster]

125 will be too small.

[foxracer45]

oh great....just my luck i called a vendor and he said 125

[24evanwilson]

oh no go like 130-140

[RyanFig]

not much difference with 130

[BuggyMaster]

Actually, for most carbs, just a small bump of say 2 sizes will make quite a difference. American Sportworks machines are unique because of an issue that they have in the machining process on their carbs (best I can tell it is a machining issue).

[foxracer45]

so i would have to send it back again?

[BuggyMaster]

The jet? I just keep them cause you never know when you might need them. You should be able to find jets at your local motorcycle shop. Take your old one to them and tell them what size you need.

P.S. Normally, a 125 would have been fine. Just not in an ASW machne. They like a 128 or 130 in stock form.

[foxracer45]

ok but if i were to put the the 125 in it just wouldn't work right?

[BuggyMaster]

Oh it will work but it will still be running a bit lean. Not something you want to keep in there for a long time.

[foxracer45]

oh so if i take them to like auto-zone i can get the 130?

[BuggyMaster]

Autozone won't carry them. You need a motorcycle shop. Like our local Yamaha dealer has some and so does the honda shop.

[24evanwilson]

Probly

[BPNWMike]

I just found this thread.

For MOST buggies, we have found that when just the UNI filter upgrade is being done, a 125 or 130 jet works out perfectly. There are *always* going to be slight variations to what is perfect for a given vehicle based on the parts used in its manufacture, the exact operating environment, and the other components you may have added or modified.

In our UNI upgrade kits we always include 2 jets, and are happy to swap out the "typical" 125 and 130 for any two sizes you prefer. 99% of the time it's not an issue because one of those two sizes works for most people.

[24evanwilson]

hmmm very cool good to know

[mzeblu]

Thank you for the video.
Quick question, do you have to completely remove the carb from the engine in order to rejet it?

[GX150]

Depending on clearance, you may be able to loosen the clamp and rotate the carburetor to gain access to the bowl.

[metalstudman1]

It might be possible to rotate it but there's an alignment spline at the top that keeps the carb from rotating while seated in the intake.I'd think leaning over would be hard on the back and you will probably need a little leverage to remove a stubborn jet.I'd remove it completely, to rotate it you'll need to disconnect most everything anyways.If you drop anything it might be hard to find if still over the engine!!!!

[MudRunner03]

Good video buggy it helped a lot very descriptive, where can i get an fmf pipe that will fit the helix perfectly cause i dont have the tools to bend it or anything. I wanted to get the Jets, uni filter and fmf pipe from svc power sports

[MudRunner03]

Originally Posted by BuggyMaster

very cool. My favorite toy.

Odyssey's are awsome, me and my dad have one but we need to re-build the motor it sat in the sun for like 5 years not running and it needs a gas tank, the gas rotted through it.. also the compression on it isnt right so it needs alot of work.

[bam41]

Thats a very good video Buggymaster. Very well done!