38mm A/S

[fireburns99]

If i'm not mistaken these carbs were found on kx 250's, but iw as wondering what year they started putting them on. Would an 87 kx 250 have the A/S?

[DPR250R]

Doubt it... probly has the PJ.... 38mm PJ is still better than your stock 34mm PJ...

PWK's started showing up on MX bikes in the early 90's and the PWK A/S a little later.

Post a pic if you want an exact answer.

[fireburns99]

heres a pic. I think you are right, and it is a pj:
http://members.dslextreme.com/users/fireburns/Pics/43_1_b.jpg

[DPR250R]

Yeah.. that is a PJ...

I could not tell you what the ID is for sure... I would bet it is a 38mm being that it is off of a KX250... you would have to measure it to be sure.

I replaced a stock carb with a 38mm PJ on my old 250R. It really woke it up.

Later I switched to a PWK A/S and could not feel a big power improvement when riding... I just liked having the newer technology on my quad.

[fireburns99]

Would the stock throttle cable fit the 38 pj?

[DPR250R]

No it won't... without cutting the cap off (which I would not recommend)

Motion Pro, Eddie Sanders, Nacs all will be able to help you with this.

I think the cable that works on the 38mm PJ should also work with the 38mm PWK in case you decide to switch in the future.

[fireburns99]

Alrighty, thanks for the help.

[xlr810]

This is a cheaper alternative, that seems to work fine. OEM Honda part 17910-964-000

Should work fine on all the PWK, and PJ carbs larger than 34mm. I was utilizing the MP cable before, but always seemed a hassle to get them. The Honda cable seems better all around to me. I initially got the tip from someone on this site-- thanks again-- to whoever that was. I couldn't tell you what machine the cable really belongs to.

[86250rrider]

thats the throttle cable number above. the 38mm a/s is found on the 2000 cr250r , part #16100-kz3-j21 :macho

[86250rrider]

the carb is found on 2000 cr250 bikes part #16100-kz3-j21:macho

[86250rrider]

ooops.. guess it did work the first time :D

[ERBE]

Just seems like a big jump from 34mm to 38mm how much bottom end do you loose with a 38mm?

[lee37vernon]

is that cable number for twist or thumb ??

[zedicus00]

you shouldnt loose any bottom end going to a 38 A/S as thats why the fins are in the body...

seems to me it would be for a twist throttle but i cant say for sure.

[86250rrider]

thats for the stock thumb throttle. never think twist on quads because i dont like twist on quads at ALL. i feel the a/s is a great all around performer for my combo!:macho

[xlr810]

17910-964-000 cable works fine with the stock thumb throttle to PWK carbs.