Keihin PJ or PWK

[road racer]

Hi;Just looking to see which is better pj or pwk. What is different between them ? Is a 35 much better than 34 ? Thanks

[Indubitably]

PJ is older technology, There isn't much performance difference between the two.

[locogato11283]

yea, most people are running the pwk series carbs. they have them from 30 to 40mm i believe...most common on HQ are prolly 33mm and 35mm..

[rocketboy]

pwks are the best other than lectrons of coarse. pjs dont idle right and are no longer in poduction

[brock_fuzzy_69]

yeah the biggest difference is the shape of the slide

 

the pj is an oval shape and the pwk is more of a half moon

 

yeah tyler it hink they come in sizes of like 28-40 or 41

 

but the smaller sizes like the 28 are a slightly different design as they dont ahve tops that screw on they are fastened on wtih a pair of machine screws

 

but essentially they are all very similar

 

 

and yeah the PJ doesnt idel for shit the adjustment for the idle on them is useless

[baddboyy21]

I never had a problem getting my 34 PJ's to idle. Mine idle great. The jetting is a pain to figure out because the needle that comes with the carb is junk.

[wesw]

pj can me a pain to get to idle

 

if you have a carb sync tool you can get them to idle pretty well when the bike gets warmed up.

 

 

and most of them come with a ceg needle which isnt a good needle for most setups.

 

 

pwk are probably nice and easier to tune or idle but cost more.