Carb upgrade/mod advice

Ten41 · 10-19-2021, 07:20 PM

Once again I have tried to do due diligence with searching, but in this case I really need advice as to the direction to take.

I recently posted as to a good bike for my boys to get, and they have 'got' Hawk 250 Advice for 15 yr old

In addition my 17 year old purchased an X-Pro Hawk 250.

The carbs across all of the bikes are all Sheng Wey PZ30s.

They enjoy riding the bikes as is - meaning that they are not out to hot rod these things. They just want good idle and smooth running.

They have good riding places real close to us and can trailer to any other places. We live in Florida at 0' altitude, and on rainy days I think it is lower.

Would it be best for them to mod the current carb (ala Motocheez), purchase a new clone on Amazon VM26 30mm Carb or tell them to save their money for a Nibbi PE30 like found in thread Best size Carb for Hawk 250.

They are not rich by any means, but I don't mind telling them to work for the good stuff.

Once again thanks to everyone.

Badluck · 10-19-2021, 07:36 PM

I don't know what jets to get for the stock carb, but if I was to deal with a carb again, I'd rather drill the idle mixture plug and bowl screws out of the stock carb and replace the screws with some at the hardware store.

herbie · 10-19-2021, 07:45 PM

My personal preference for everyday riding would be the pz30b pumper carb

buzz · 10-19-2021, 08:08 PM

Stock carb ,just needs bigger jets cheap. And so easy to do,very happy with mine.

Aufgeblassen · 10-20-2021, 09:06 AM

Quote:

Originally Posted by buzz

Stock carb ,just needs bigger jets cheap. And so easy to do,very happy with mine.

What size jet did you go to?

tknj99 · 10-20-2021, 09:12 AM

I just went thru the exercise of tuning the stock PZ30 on my stock Titan DLX.. The best setting for me wound up being:
40 pilot (mine is 37 currently wit a/f turned out since i didnt have a Mikuni pilot jet on hand)
115 main
Needle shimmed with 2 washers

Ofcourse this will depend on your elevation. Im in VA at 700'

Megadan · 10-20-2021, 04:52 PM

Don't do the PE30 without other big engine work. It will be a finicky pain in the butt.

The vm26 clone is nice because it uses mikuni jets and it is super easy to dial in.

For any real improvement in performance, the pz30b is the best option. Doesn't add any extra power, but the accelerator pump puts a bit more pep in its step with aggressive throttle roll on, making the bike feel stronger and more responsive.

- A person who has more carbs than bikes.

TominMO · 10-20-2021, 09:41 PM

SSR uses a 26mm Mikuni (or clone perhaps) on its 250cc dual sport.

Here is a good video on tuning carbs.

DualSportDude · 10-20-2021, 09:46 PM

My secret is here...
http://chinariders.net/showthread.ph...226#post367226

Ten41 · 10-21-2021, 08:32 PM

Thanks everyone! This is a great start!

I have been letting the boys make their own decisions figuring that they will learn a lot more than if I give them a set path.

So far they are loving the bikes - as I anticipated that they would.

10-19-2021, 07:20 PM	#1
Ten41 Join Date: Sep 2021 Posts: 24	Carb upgrade/mod advice Once again I have tried to do due diligence with searching, but in this case I really need advice as to the direction to take. I recently posted as to a good bike for my boys to get, and they have 'got' Hawk 250 Advice for 15 yr old In addition my 17 year old purchased an X-Pro Hawk 250. The carbs across all of the bikes are all Sheng Wey PZ30s. They enjoy riding the bikes as is - meaning that they are not out to hot rod these things. They just want good idle and smooth running. They have good riding places real close to us and can trailer to any other places. We live in Florida at 0' altitude, and on rainy days I think it is lower. Would it be best for them to mod the current carb (ala Motocheez), purchase a new clone on Amazon VM26 30mm Carb or tell them to save their money for a Nibbi PE30 like found in thread Best size Carb for Hawk 250. They are not rich by any means, but I don't mind telling them to work for the good stuff. Once again thanks to everyone.
	0

10-19-2021, 07:45 PM	#3
herbie Join Date: May 2019 Location: Illinois Posts: 864	My personal preference for everyday riding would be the pz30b pumper carb __________________ 2022 Venom KPR 200 Red- the fastest color 16t and 46t sprockets, NGK Iridium CPR8EAIX-9, aftermarket full exhaust system. Top speed 81GPS 2023 Venom SS3 KP mini 150– Nibbi carb, Nibbi air filter, aftermarket muffler, decat 2022 Venom Ghost chopper 250 1997 Honda GL1500 Goldwing 1978 Kawasaki KL250 https://youtube.com/@herbiesgarage681
	1

10-20-2021, 09:12 AM	#6
tknj99 Join Date: Oct 2020 Location: Central VA Posts: 1,259	I just went thru the exercise of tuning the stock PZ30 on my stock Titan DLX.. The best setting for me wound up being: 40 pilot (mine is 37 currently wit a/f turned out since i didnt have a Mikuni pilot jet on hand) 115 main Needle shimmed with 2 washers Ofcourse this will depend on your elevation. Im in VA at 700' __________________ 2024 Zuma Storm 150 DLX 2019 Beta 430 RRS 2018 VStrom 1000 XT Former China Bikes: Tao DBX1, Brozz 250, CSC RX4, Titan DLX, Templar X
	0

10-20-2021, 04:52 PM	#7
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,057	Don't do the PE30 without other big engine work. It will be a finicky pain in the butt. The vm26 clone is nice because it uses mikuni jets and it is super easy to dial in. For any real improvement in performance, the pz30b is the best option. Doesn't add any extra power, but the accelerator pump puts a bit more pep in its step with aggressive throttle roll on, making the bike feel stronger and more responsive. - A person who has more carbs than bikes. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
	2

10-20-2021, 09:41 PM	#8
TominMO Join Date: Sep 2021 Location: De Soto, MO Posts: 1,887	SSR uses a 26mm Mikuni (or clone perhaps) on its 250cc dual sport. Here is a good video on tuning carbs. __________________ 2021 Lifan Xpect--sold 2022 Lifan KPX 1972 Honda CT90--The Carrot 1969 Honda CT90--The Tomahto Cheesy is the WDK (workplace drama king). Now retired. Nope, back in the saddle. Climate: The Movie https://www.youtube.com/watch?v=A24fWmNA6lM How our government really works https://www.youtube.com/watch?v=QjadCd0VRBw Question all authority.....think for yourself
	1

10-19-2021, 07:36 PM	#2
Badluck Join Date: Jun 2021 Posts: 80	I don't know what jets to get for the stock carb, but if I was to deal with a carb again, I'd rather drill the idle mixture plug and bowl screws out of the stock carb and replace the screws with some at the hardware store.
	0

10-19-2021, 08:08 PM	#4
buzz Join Date: Dec 2020 Location: Dayton Pa. Posts: 880	Stock carb ,just needs bigger jets cheap. And so easy to do,very happy with mine.
	0

10-20-2021, 09:46 PM	#9
DualSportDude Join Date: Jul 2021 Location: Georgia, USA Posts: 91	My secret is here... http://chinariders.net/showthread.ph...226#post367226
	1

10-21-2021, 08:32 PM	#10
Ten41 Join Date: Sep 2021 Posts: 24	Thanks everyone! This is a great start! I have been letting the boys make their own decisions figuring that they will learn a lot more than if I give them a set path. So far they are loving the bikes - as I anticipated that they would.
	0