what is the best carb for a tri-z?

[twgranger]

What is the best carb and size for a tri-z to get more perfomance? I dont think my stock one is worth a trailprotrailprotrailprotrailpro.

[Darius1502]

Yeah me too! Let me know where you can get it and what brand is recommended if anyone can find one they still make.

Thanks,

Darius

[twgranger]

Yeah me too! Let me know where you can get it and what brand is recommended if anyone can find one they still make.

Thanks,

DariusGet your own thread. ;) j/k

[200x Basket]

38MM keihin AIRSTRYKER is the choice for most 250cc 2 strokes

[J.D.]

Find a 34mm round slide Mikuni off ebay. It's what I'm working on.

[200x Basket]

Find a 34mm round slide Mikuni off ebay. It's what I'm working on.

why so small? go for performance 8)

[J.D.]

Stock is 32, and we are talking about a Tri-Z here. There's no reason to go insane and spend all that money, lol.

[Tri-Z Pilot]

Nah all you need is a 34mm or 36mm, 38mm is just over kill. I would go with a 36mm, so that you gain some power on top, but still have good low end power for the woods, (Depends on where you ride though). Call someone like Duncan Racing, or Kehin, or mikuni, and tell them what kind of riding you do, and what kind of performance gains you are looking for, they should help.

[Darius1502]

Sorry to high jack the thread TW....us Tri Z guys have to stay together!!

Besides you always ask the stuff I am wondering about.

What should we ask next?

Peace,

darius

[TimSr]

Ive never been disappointed with the stock carb when its set up properly.

[twgranger]

So a 36mm will work good? I just want some more power out of my z :twisted:

[Jeb]

My stock carb works very well with the UNI Pod Filter and Bill's pipe. I have a 38mm flatslide Mikuni laying around that used to be on my 84 KXT. I want it on the Z, but I hate to change when the stock works so well.

[twgranger]

You shure you dont want to sell it. :-D

[200x Basket]

i have a 34 mm flat slide pj keihin that was STOCK on a trx that i would sell you. i actually run a 41mm pwk on my t3. i have plenty of bottom end power to ride trails. i have even rode trails with a passenger on it :D

[twgranger]

i have a 34 mm flat slide pj keihin that was STOCK on a trx that i would sell you. i actually run a 41mm pwk on my t3. i have plenty of bottom end power to ride trails. i have even rode trails with a passenger on it :Dsent you a PM :-D

[ChrisD]

It depends on your mods and needs. Stock carbs are fine if you're running a near stock motor otherwise the carb will limit the benefits of all the mods you've done. There are lots of opinions on carb setups out there. It depends on what you want. I have fully modded motors...port/polish/high compression/reeds/intake/filter/hi rev pipe/etc etc so I use a large carb. I love the Kehin 39 PWK for a 250cc motor. Some guys say that you lose bottom end for the woods. I guess if you idle it through the woods, then maybe, but I don't ride that way. I'm ususlly ripping on it most of the time. The larger carbs will increase your airflow, so you use larger jets. More air and more fuel usually means more power in a two stroke (A two stroke is just a big air pump).

I run a 270cc motor on my woods bike with a 39mm and a 190 jet and that works well. It has arm ripping power. My ice racer was a 250cc with a 39mm and that worked great too. Lots of power throughout the curve. I've to a ESR330 kit this year and may move up to a 41mm PWK.

I also have a 38mm Mikuni carb but they are a more complicated, larger carb. I like the simplicity and more compact size of the Kehin.

Just another opinion for the world.

[mike from long island]

one thing to consider about different carbs for the tri-z is will it fit ito your stock intake. youll have to find one that will because i dont think they make any different sized intakes. or at least i havent found one yet. not toruin anyones day but i would hate for you to spend big bucks for a carb and it doesnt fit into the intake just my 2 cents good luck and if you do find a good carb that fits please let us all know lol

[Tri-Z Pilot]

You can either heat up the boot to fit it, or buy an intake boot from an 88-92 (I think those are the years) yz 125 that is sized for that carb, on another note, you can also use an aftermarket reed valve, and reed spacer for those year yz's for your tri-z, some people say it works great, others say that they didnt notice anything power wise.

[Jeb]

Are you 100% sure about the YZ 125 intake boot? does it come off the motor straight or at an angle?

That's one reason I haven't done the swap on mine is because I was always under the impression you need an IT250 Boot. I do not know if IT250 is a straight or angled boot.

Of course it doesn't matter for my Z if it's angled, I run a POD filter.

[Tri-Z Pilot]

Well since you run a pod filter, it shouldnt matter, but there was a topic a while back that discussed the yz 125-triz 250 swap, I owned a 1990 yz, and I cant remember if the boot was straight or not. Do a search for after market tri-z reeds, I think that is where it was posted.