« previous next »
Pages: [1]   Go Down

Author Topic: KX500B1 replacement carb?  (Read 1202 times)

0 Members and 1 Guest are viewing this topic.

Offline VMXSteve

  • Novice
  • *
  • Posts: 15
    • View Profile
KX500B1 replacement carb?
« on: December 18, 2013, 03:45:22 pm »
I have a 1985 KX500B1 with an old original Mikuni VM40 carb that I would like to replace / upgrade due to jetting issues.   Jets / Needles are almost impossible to get and I have had great success with the JD Jetting Red needle on my RM250K8.

I can get a new Keihen PWK 38 Airstriker carb with JD Jetting needles etc from the States, but are unsure if it's a straight bolt on solution?   Or do I need air box adapters etc....

Anyone tried this on a KX500?

Thanks Steve
Logged
YZ250J, KX500B1, XR600RJ, RM250K8, LTZ250K9, DR650SEK9, GSX1400Z, TTR125, GPX250RII, TSX125, TTR50, LTZ50

Offline Nathan S

  • Superstar
  • ******
  • Posts: 7275
  • HEAVEN #818
    • View Profile
Re: KX500B1 replacement carb?
« Reply #1 on: December 18, 2013, 04:32:10 pm »
FWIW, I put an old round slide Mikuni into a 95 YZ250 (that originally had a 38PWK).
Can't recall how good the fit was (stretched boots, etc) but it definitely went in without the need for adaptor rings, etc.
Logged
The good thing about telling the truth is that you don't have to remember what you said.

Offline Stevo17

  • A-Grade
  • ****
  • Posts: 374
    • View Profile
Re: KX500B1 replacement carb?
« Reply #2 on: December 18, 2013, 05:28:26 pm »
You could try a Mikuni TM38-86 Flat slide that should bolt straight on.  Jetting would be as stock on the 84 KX500.
Logged

Offline Ted

  • Legend
  • *****
  • Posts: 2800
    • View Profile
Re: KX500B1 replacement carb?
« Reply #3 on: December 18, 2013, 08:16:08 pm »
That's what I've got
Logged
81 YZ 465 H   77 RM 125 B
Pages: [1]   Go Up
« previous next »