Nibbi Pwk jets

Hunter32 · 08-09-2023, 10:19 AM

Hello, I bought a boom Vader 125 from my uncle and I’m putting it all back together now, well yesterday I put the brand new Nibbi pwk26 on and fired her up. And it was running super rich so I installed the smallest pilot jet I had witch is a #30 and it is still pretty rich. So I started looking online and #30 is the smallest jet I can find for a Nibbi., but I found some Mikuni jets that go much smaller, and they look really similar would they work in the Nibbi??

dirtbkr188 · 08-09-2023, 12:32 PM

Quote:

Originally Posted by Hunter32

would they work in the Nibbi??

Simply put...NO

Hunter32 · 08-09-2023, 04:27 PM

Any idea where I can get pilots smaller than #30 for a Nibbi because I’ve looked everywhere and can’t find any. Edit: do you think if I put a smaller Main if it would lean it out at idle?

**JerryHawk250** · 08-09-2023, 04:37 PM

Have you tried leaning out the idle mixture?

Hunter32 · 08-09-2023, 04:48 PM

Quote:

Originally Posted by JerryHawk250

Have you tried leaning out the idle mixture?

Honestly my uncle was the one tuning it, we started to get it close but at that point it was 10pm and my exhaust was right next to my neighbors window so we called it a night. Haven’t messed with it today yet, I just figured it would be a lot easier if we just threw maybe a #25 jet in and see what happens

Hunter32 · 08-09-2023, 09:23 PM

Quote:

Originally Posted by JerryHawk250

Have you tried leaning out the idle mixture?

Ok I went out and messed with it again, so I leaned everything to the max and it’s still running super rich and dies unless given throttle. I see people on YouTube running the 26mm carb on boom vaders (125cc) I live in Toledo Ohio, recommend jet sizes??? Any help is appreciated thanks

dirtbkr188 · 08-09-2023, 10:00 PM

Just out of curiosity, what made you choose the PWK style carb over the PE style? IMO, the PWK has always been a very finicky carb to fine-tune, the PE style is much more tuner-friendly and preferred on the horizontal engines.

Hunter32 · 08-09-2023, 11:17 PM

Quote:

Originally Posted by dirtbkr188

Just out of curiosity, what made you choose the PWK style carb over the PE style? IMO, the PWK has always been a very finicky carb to fine-tune, the PE style is much more tuner-friendly and preferred on the horizontal engines.

It’s what my uncle already bought and it was brand new so I used it over the crappy stock carb

08-09-2023, 10:19 AM	#1
Hunter32 Join Date: Aug 2023 Location: Ohio Posts: 11	Nibbi Pwk jets Hello, I bought a boom Vader 125 from my uncle and I’m putting it all back together now, well yesterday I put the brand new Nibbi pwk26 on and fired her up. And it was running super rich so I installed the smallest pilot jet I had witch is a #30 and it is still pretty rich. So I started looking online and #30 is the smallest jet I can find for a Nibbi., but I found some Mikuni jets that go much smaller, and they look really similar would they work in the Nibbi??
	0

08-09-2023, 04:37 PM	#4
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,573	Have you tried leaning out the idle mixture? __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
	1

08-09-2023, 04:27 PM	#3
Hunter32 Join Date: Aug 2023 Location: Ohio Posts: 11	Any idea where I can get pilots smaller than #30 for a Nibbi because I’ve looked everywhere and can’t find any. Edit: do you think if I put a smaller Main if it would lean it out at idle?
	0

08-09-2023, 10:00 PM	#7
dirtbkr188 Join Date: Aug 2009 Posts: 512	Just out of curiosity, what made you choose the PWK style carb over the PE style? IMO, the PWK has always been a very finicky carb to fine-tune, the PE style is much more tuner-friendly and preferred on the horizontal engines.
	1