Author Topic: I just bought a new Keihin PWK40 Air-striker carb for $67 delivered !!!!!!  (Read 824 times)

0 Members and 1 Guest are viewing this topic.

Offline Hoony

  • Legend
  • *****
  • Posts: 4051
  • Melbourne, Vic.
    • View Profile
Re: I just bought a new Keihin PWK40 Air-striker carb for $67 delivered !!!!!!
« Reply #15 on: November 14, 2017, 04:57:27 PM »
Those will be the Chinese rip off Okos, saw a thread on how to pick them. Real Okos have Taiwanese flag on box is first clue, next is jets actually have markings
Have been running a real Oko for years on my Sherco & it's as good if not better than a Keihin PWK

i never knew of Oko carbs, are they as good as keihins' in general.
Long time Honda Fan, but all bike nut in general, Big Bore 2 stroke fan.    http://www.youtube.com/watch?v=XJoKP6MawYI
1985 Honda CR500RF "Big Red"
1986 Honda CR250RG
2005 KTM 300EXC "The GruntMeister" ( I love that engine)

Offline tony27

  • Legend
  • *****
  • Posts: 1779
    • View Profile
Re: I just bought a new Keihin PWK40 Air-striker carb for $67 delivered !!!!!!
« Reply #16 on: November 14, 2017, 05:21:58 PM »
Been around for quite a number of years, only have experience of their 28mm d-slide carb, have a couple of the power jet oval bored 30mm carbs which I suspect may be the copies
Early versions weren't known for having great quality chrome on the slides but I haven't had any problems
Main improvement with trials bikes over keihins that have been noted worldwide is less fuel out of the overflows when hopping. I picked up 1 of the clear floatbowls which is quite helpful & really cheap

Offline John Orchard

  • Legend
  • *****
  • Posts: 2599
  • ^^^ Jan 1984
    • View Profile
Johnny O - Tahition_Red factory rider.

Offline Momus

  • A-Grade
  • ****
  • Posts: 446
    • View Profile
Re: I just bought a new Keihin PWK40 Air-striker carb for $67 delivered !!!!!!
« Reply #18 on: November 15, 2017, 02:52:25 PM »
I've fitted a couple of smaller PWK's and found same deal with slow running and pilot passages. Also found that the seal of the jet block and the passage alignment might need a blueprint. These were OKO branded units.
Those will be the Chinese rip off Okos, saw a thread on how to pick them. Real Okos have Taiwanese flag on box is first clue, next is jets actually have markings
Have been running a real Oko for years on my Sherco & it's as good if not better than a Keihin PWK
Yes the OKO carbies with provenance are good and the cheapies easy enough to get right. I am using the sub 30 mm size which are very compact and ideal for smaller 4 stroke fitups. Benchmark for these though is the Keihin FACE.