chinese copy of keihin 38 experience?

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TN-592
Posts: 55
Joined: Mon Jan 11, 2016 6:48 am

chinese copy of keihin 38 experience?

#1 Post by TN-592 » Sat Feb 03, 2018 5:07 pm

I have found this chinese copy of keihin pwk for 54usd,did anyone had any experience with these carbs?

https://www.ebay.com/itm/Keihin-PWK-38m ... c7&vxp=mtr" onclick="window.open(this.href);return false;

hondaror
Posts: 2828
Joined: Mon Mar 03, 2014 8:44 pm
Location: Alberta, Canada

Re: chinese copy of keihin 38 experience?

#2 Post by hondaror » Sat Feb 03, 2018 11:23 pm

Don't do it. Buy a new set of decent Mikuni flat slides!

The build quality is terible, and the Chinese carbs that I sonic cleaned, turned a very dirty, blackish swirly gray.
I would not trust them with any of my engines.
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine

Gus the crank guy
Posts: 36
Joined: Sat May 19, 2018 12:02 am

Re: chinese copy of keihin 38 experience?

#3 Post by Gus the crank guy » Fri May 25, 2018 1:30 am

I was given a set of these and realized they are airstrikers with the fins polished out of the Venturi, you would think no big deal but apparently it is because where the nozzle protrudes into the Venturi it needs a hood, well that was messed up too and it had some wild jetting needed, we spent a 1/2 day on the Dyno and could not get them to perform, it had stripped screw and something else, I said that's enough of that, I stand with Rory

Headcoats
Posts: 848
Joined: Sun Apr 04, 2010 6:13 am
Location: Pig On The wall Country

Re: chinese copy of keihin 38 experience?

#4 Post by Headcoats » Fri May 25, 2018 5:07 am

Just not worth the risk and that goes for genuine jets, needles etc
Cryin' In The Beer Of A Drunk Man

Bare
Posts: 1196
Joined: Sun Jan 29, 2006 2:18 am
Location: vancouver

Re: chinese copy of keihin 38 experience?

#5 Post by Bare » Mon Jul 02, 2018 11:38 pm

:-) Buy cheap = Buy twice !
And if Dim... repeatedly.

hondaror
Posts: 2828
Joined: Mon Mar 03, 2014 8:44 pm
Location: Alberta, Canada

Re: chinese copy of keihin 38 experience?

#6 Post by hondaror » Tue Jul 03, 2018 2:23 pm

If you make the cheap attempt, at least use the real Mikuni jets. The Chinese stuff has no tolerances required for the manufacturing. They reverse engineer.
Your jetting will cost more then the carbs, and they still may not run right, ever.
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine

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