2019 Pw50 4-6 stock class upgrades

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2/24/2019 8:19 PM

I recently bought my son a new Pw50, he’s 5 and only been riding for a little over a month. He’s picked up riding very quickly and is already topping his Pw out around the local tracks. I’m looking for some tips to make it a bit quicker and have a little more throttle response (Gasket and screw have been removed). I DO NOT WANT TO MOD IT. He wants to race the stock 4-6 shaft drive class. Just trying to by some time and save money for a KTM or Cobra 50. Thanks!

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2/24/2019 8:38 PM

Dont think there is mutch to do on thoes bikes other than the gasket screw thing and i have herd of cutting the throttle cable down 2mm then running it like that
Maybe able to find a trade for a ktm or cobra because some dad bought it for there kid and he could not handel it
Also some dealers are giving pretty good discounts on left over 50s could trade the pw in the finance it
( i am fulley aganist financeing bikes, but i would do it for my kid.)

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Thanks to- Monster energy, Mika metals, DT-1 filters,Factory connection, works connection, factory effex,acerbis,O'Neal,Scott,Hann wheels,Maugra USA, Engine ice,Slick products,Leatt. Yes me sponsors are real.

2/24/2019 8:48 PM

He’s still got some stuff to learn on the pw but it won’t be long before he’s ready to move up. I’ll probably just have to buy the KTM or Cobra..... I’ll probably buy new because I’ve seen how some people take care of their stuff and I don’t want someone’s mess.

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2/24/2019 8:54 PM
Edited Date/Time: 2/25/2019 8:26 AM

A couple things to do is:

1. Getting the jetting right, I went down on the main on my Grandsons and also up one clip on the needle(lowering the needle).
2. Find a set of QT50 gears, this is the ring and pinion. They gear it down just enough it pulls from a dead stop so much better.

I know allot of guys send their engines to Barr's to get balanced and blueprinted. Another thing to make them faster is to look at tire weight, I can't remember off the top of my head but there is one set of tires most run to cut down on weight.

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2018 KX450F
2005 KX250
2003 KDX 220
1984 KX 80
1982 RM 80
1980 RM 80
1977 XR 75
1969 Honda Mini 50

2/24/2019 9:05 PM

here you go, bought a 125 from the 1st guy knows his stuff
https://jacksonville.craigslist.org/mcy/d/swainsboro-2017-ktm-50sx/6822190672.html

https://spacecoast.craigslist.org/mcy/d/palm-bay-2015-ktm-50-sx/6815430664.html

woud have gotten a used pw then save for the ktm or started him on one

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Thanks to- Monster energy, Mika metals, DT-1 filters,Factory connection, works connection, factory effex,acerbis,O'Neal,Scott,Hann wheels,Maugra USA, Engine ice,Slick products,Leatt. Yes me sponsors are real.

2/25/2019 7:41 AM

Keep him on the PW for a little bit longer and then throw him on a 65. Forget the KTM, Husky or Cobra 50's. Save the money for a 65. I went from a PW50 to a KX60 no problem.

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2017 RMZ450
2005 YZ250-sold :,(
1998 YZ250
2005 KX250F

80% of the time it works every time
IG @hammerfamily_4 & @2HRacing
Thanks to : Factory Effex, N2Dirt, Acerbis, DT1, Fasthouse, Matix, FMF, ASV, 100% & Mika Metals

2/25/2019 5:07 PM

Reeds and jetting.

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2/26/2019 8:38 AM

SLOWTIME wrote:

Reeds and jetting.

You must run stock reeds to be legal in AMA competition, per limited class rules.

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2018 KX450F
2005 KX250
2003 KDX 220
1984 KX 80
1982 RM 80
1980 RM 80
1977 XR 75
1969 Honda Mini 50

2/26/2019 3:42 PM

SLOWTIME wrote:

Reeds and jetting.

dkurtd wrote:

You must run stock reeds to be legal in AMA competition, per limited class rules.

(Thumbs up)

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3/14/2019 4:58 AM

Sending it to Bars or proflow is a good choice. For the full blown package you will spend the same amount as the bike costs but there is no comparison between those built bikes and stock.

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3/15/2019 6:18 AM

bf884 wrote:

Sending it to Bars or proflow is a good choice. For the full blown package you will spend the same amount as the bike costs but there is no comparison between those built bikes and stock.

Does anyone know what Barrs does to them exactly?

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3/17/2019 1:42 PM

bf884 wrote:

Sending it to Bars or proflow is a good choice. For the full blown package you will spend the same amount as the bike costs but there is no comparison between those built bikes and stock.

Mx391 wrote:

Does anyone know what Barrs does to them exactly?

call pro Flo he'll tell you exactly what he does to them. He's got the PW's dialed.

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3/19/2019 4:48 PM

dkurtd wrote:

A couple things to do is:

1. Getting the jetting right, I went down on the main on my Grandsons and also up one clip on the needle(lowering the needle).
2. Find a set of QT50 gears, this is the ring and pinion. They gear it down just enough it pulls from a dead stop so much better.

I know allot of guys send their engines to Barr's to get balanced and blueprinted. Another thing to make them faster is to look at tire weight, I can't remember off the top of my head but there is one set of tires most run to cut down on weight.

I also heard about not using grease at the drive train at rear wheel only use a WD40 based lubricant for races only. Refresh before each ride

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3/19/2019 6:50 PM

Barr's done a lot of thing to cut down friction through the drivetrain besides the tuning.

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Take it to the limit, one more time!