vitacci pentora ut 250cc atv mikuni carb upgrade

*update: I now have a 40 pilot and 100 main jet installed. Runs Great.
Terberl 20 Pieces Carburetor Main Jet Kit, 10Pcs Slow Pilot Jets and 10PCS Carburetor Main Jets for PWK Keihin OKO CVK KOSO PE PWM a.co/d/2rJldsE
Carburetor PZ30 VM26 Carb Carburetor Fit For ATV Dirt Bike 150cc 160cc 200cc 250cc www.walmart.co...

[@garryjones6882]

i ordered this carb and put the 40 pilot and 100 main jet and with a little tuning its working perfect

[@speedyboi349]

The best upgrade for this quad is to drill the inside of the heather and new silencer

[@Mntman]

@@speedyboi349I willl definently be upgrading to a new exhaust setup in the future.

[@speedyboi349]

@@Mntman thats awesome bro these upgrades like a new carbulator better airflow or anything like that bring twice the value to the table once you modify or replace with a better exhaust I have worked with the pentora vitacci sport quad version the one that looks like a raptor I bet they did the same for your quad they put a catalitic that blocks airflow in the exhaust. Thats why they run hot and feel sliggish in higher rpms. Straight pipe and boom twice the powah

[@Mntman]

@@speedyboi349 for sure man 👍

[@Kurt-u8f]

Need the place this cab and jets were purchased

[@Mntman]

@@Kurt-u8f the links are on my video description down below the video to where I got the aftermarket carb and jets

[@JohnOechsner-sq3kv]

When I throttle quick, it just puques then dies, if I feather the throttle it it will reave up…I ve got a 115 jet for the main, do I need a smaller or larger jet?….

[@Mntman]

Smaller main, could be your pilot too, try a 40 pilot, 105 main. That's what I'm currently running. Works great. Also, if it idles let it idle for a few minutes to warm it up first.

[@keithmichaeltaplin7176]

Have you tried the mikuni carb or a mini carb

[@Mntman]

Mikuni is what I ordered, but it doesn't say it on it anywhere, pretty sure this is a china mikuni clone though.

[@keithmichaeltaplin7176]

Ok..have you done any other mods besides the carb change out??

[@keithmichaeltaplin7176]

Have you tried changing the exhaust

[@Mntman]

@@keithmichaeltaplin7176 no, everything else is still stock, it has woke up with the new carb jetting. Exhaust will be my next upgrade but I'm not in a rush where it runs great now.

[@JonDeth]

*What about a different jet kit for the stock carb?* I can't see a good reason to drop 35 or 40 bucks into an aftermarket carburetor setup you're showcasing when I can buy a 30mm branded racing carburetor at that price that is a higher end design, material and comes with a jet assortment.

[@Mntman]

@@JonDeth The pilot jets for the stock carb pretty much don't exist. Unless you got connections in China. I assume your talking about the pwk carbs instead of what I got then, I heard they are junk. Course, the one I got isn't great either but heck of a lot better than stock. I'd recommend a higher end carb for you then and yes they more like $60+ dollars lol

[@johnoechsneriii5499]

Ok, I put a 42 pilot and a 105 main, this morning it was 32 degrees, won’t start….

[@Mntman]

Put in the 40 pilot and 100 main, I had tinkered with this as well. The stock jet numbers were not the same as the aftermarket ones. The aftermarket ones have larger hole diameters vs stock ones. So the 100 main aftermarket is actually bigger than the stock 102.

[@johnoechsneriii5499]

Thinking about just changing the pilot to a 40….after it cranks a few times I can smell gas….

[@rexbald222]

I have the same quad and ordered that carb. question what did you do with the rubber suction hose.

[@Mntman]

I left the overflow rubber hose on the carb and put it next to the swingarm.

[@rexbald222]

thanks for the come back. the OEM carb on mine has a vaccum 1/4 in hose on the side that goes to an device up under the front of the gas tank @@Mntman

[@rexbald222]

its not the overflow its a hose that goes to a device up front of the gas tank@@Mntman

[@Mntman]

@rexbald222 there's a hose that goes from the gas tank to the fuel pecock, then it goes from the pecock to the carb, it's a fuel line from the gas tank, it goes to the top of the carb

[@johnoechsneriii5499]

After taking another look the line running forward comes off the intake manifold….

[@KayoMotoTrend]

So 42 and 105 or 40 and 100?

[@Mntman]

Start with the 40 and 100, then tweak from their to your preference

[@KayoMotoTrend]

@@Mntman I’m just curious are you running the 42 and 105?because I prefer the bigger jets but don’t want to keep taking apart. I have the exact same atv and my new carburetor I bought identical to one in your video stock jets and motor is not getting enough fuel even with fuel screw adjusted out fully. So really would like 42 and 105 not 40 and 100 but again what’s this atv work best with in your opinion?

[@Mntman]

@@KayoMotoTrend 40 and 100 has worked best for me. Don't forget, the aftermarket jets in the new carb are larger than the stock ones in the stock carb. The 100 aftermarket is still larger than the 102 stock.

[@2487Lakers]

@@KayoMotoTrend just curious what kind of jets did u end up putting on your bike?

[@Mntman]

Mikuni jets