PWK questions

[yota]

I searched and read, including Bob's sticky's but I'll jump in with a couple of questions.

I'm considering putting the PJ from my 500 on my 490 maico and putting a PWK 38 on the 500.

are all PWK's air strikers?

I'm all about low end and mid so I am thinking the 38 or 39 is all I need, no dunes or any wide open stuff here. Is this a correct assumption?

my understanding is not to expect any miraculous power increase (which I don't need anyway) but maybe a cleaner throttle response.

damn I sold dredge a 38 airstriker from a KTM 125 I parted out for peanuts a couple of years ago ):

[lewisclan]

I searched and read, including Bob's sticky's but I'll jump in with a couple of questions.

I'm considering putting the PJ from my 500 on my 490 maico and putting a PWK 38 on the 500.

are all PWK's air strikers? NO

I'm all about low end and mid so I am thinking the 38 or 39 is all I need, no dunes or any wide open stuff here. Is this a correct assumption?
YES 38 AIR STRIKER

my understanding is not to expect any miraculous power increase (which I don't need anyway) but maybe a cleaner throttle response.
CORRECT AND BETTER MILEAGE

damn I sold dredge a 38 airstriker from a KTM 125 I parted out for peanuts a couple of years ago ) BUMMER :

[honda02]

No they are not What I have read Air Strikers are better for topend riding and some of the NON Air Strikers can be made into a Airstriker.

Link:
http://cr500riders.com/cgi/yabb/YaBB.pl?num=1241786356

are all PWK's air strikers?):

[M.F.D.B.]

No they are not What I have read Air Strikers are better for topend riding and some of the NON Air Strikers can be made into a Airstriker.

Wrong. Airstrikers are desinged to increase carb signal at low throttle positions. Their very design impedes air flow and therefore would hinder WFO throttle air flow.

Here is a couple pics of both designs:





More than likely not even a Dyno could tell the difference in WFO performance. As you can see in the pics the upper carb is the Airstriker, I find it hard to believe you could "make" a standard carb into and Airstriker. You could however do the oposite pretty easy by removing the vanes.

[yota]

No they are not What I have read Air Strikers are better for topend riding and some of the NON Air Strikers can be made into a Airstriker.

Link:
http://cr500riders.com/cgi/yabb/YaBB.pl?num=1241786356

are all PWK's air strikers?):

a good read, thanks

[bearorso]

Yota, will will get Exactly what you & Lewisclan describe from a PWK.

I fitted PWKs to both my 86 500 & 89 320 Maicos, think 500 was std PWK, 320 AS - it's a long time ago. Both obtained from Sudco, with minimal jetting changes needed. So much better than the Bing, it wasn't funny.

But you won't find any extra top end - the Bings really worked well when opened out to just a big hole.

[honda02]

Ok I reread the post on the PWK it the other way around NON Airstriker is better for topend.

I like my PWK works great for me.

[nmdesertrider]

PWK is a great upgrade. I just got the plain old 38 for cost and because it would be easier to get jetting advice.

[yota]

thanks for all the input, ordered a 38 airstriker from Pat's.

[AlisoBob]

How much?

[yota]

196.95
http://www.psep.biz/store/keihin_carburetor.htm

parts
http://www.psep.biz/store/keihin_carburetor_part.htm

I've been using Pats for a long time, shipping has never been over 7 or 8 bucks and they don't care if you order 1 item or 20.

[yota]

obviously Pat's uses Sudco. Being able to use PayPal with Pats is kinda nice though.

[M.F.D.B.]

obviously Pat's uses Sudco.

Sudco is the only importer of Keihin carbs from Japan.