38 mm Short body carbs ?

[AnthonymYZ250]

I have a 99 Yz 250 I was looking at the 38 mm pwk air stryker ag ktm short body and the guy from jd said he would recommend the 38mm didn't say which one though just pwk I mainly just use my bike for woods and trails is there a difference in the short body and the regular and what difference will it make in the bike

[moto_psycho]

It'll make it more snappy. Perhaps less high rev power, but sharper all rou D otherwise

[AnthonymYZ250]

Okay thanks so you think short body is the way to go over the one that's not

[moto_psycho]

Woods bikes and most motorcross have PWK. Road bikes and go karts etc have PWM.

http://srsengines.com/technical-library/shifter-kart-engines/why-pwk-or-pwm-stock-moto-cr125-carbs-for-skusa

[AnthonymYZ250]

Okay thank you

[AnthonymYZ250]

What's the difference

http://www.jdjetting.com/xcart/product.php?productid=60&cat=28&page=1

http://www.jdjetting.com/xcart/product.php?productid=211&cat=28&page=1

[moto_psycho]

Earlier and later model. Earlier model has screw top so is easier to adjust needle.

[AnthonymYZ250]

Which one is the earlier one