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H1 500 carb upgrade

Posted: Mon Feb 01, 2021 4:55 pm
by H1anker
Hi guys
So iam playing with the thought of a set of tm 34mm carbs, as I have on my rd400.

Anyone has experince with this or similar?
Can you get a kit, with the rubber to go inbtween the carb and intake?

Plan is to have a set of polished Jim lomas pipes on it eventually

Re: H1 500 carb upgrade

Posted: Mon Feb 01, 2021 5:59 pm
by robh1f
Heard good things about a company called Motocarb over here. Go onto their website and have a look. They specialise in Mikuni VM and TM carbs. Thumbs Up

Re: H1 500 carb upgrade

Posted: Mon Feb 01, 2021 7:37 pm
by Hal
There are a few people that have made these bolt on adapters if you have a search around.
http://www.kawasakitriplesclub.net/foru ... rb+adapter
I see the link to Boblesbits doesn't work anymore, but maybe Peter Mac can help out, if you can't find an alternative?
Denco made them originally back in the '70's

Re: H1 500 carb upgrade

Posted: Mon Feb 01, 2021 9:20 pm
by Kezsam1
I've got vm 34m's on orville, Peter macs adaptors and rubber carb unions from Allen's performance, easier on an h1 than a kh 500 as there's no gear shift indent

Re: H1 500 carb upgrade

Posted: Sun Feb 07, 2021 8:38 am
by Kezsam1
Found some pictures if it helps Thumbs Up
FB_IMG_1612686296482_resize_46.jpg
FB_IMG_1612686289745_resize_78.jpg

Re: H1 500 carb upgrade

Posted: Sun Feb 07, 2021 10:05 pm
by H1anker
Very nice thank you!

So VM carbs or tm flat slides, is it worth the Extra money to get flat slides?.
Can you tell what size jets your running

Re: H1 500 carb upgrade

Posted: Tue Feb 09, 2021 7:12 pm
by Kezsam1
If I told you I would have to kill you :?


Orville is slightly tuned, so the carbs are set up for it specifically and would not help on another set up. Better to get themset up on a dyno to suit you motor Thumbs Up

Re: H1 500 carb upgrade

Posted: Wed Feb 10, 2021 12:17 pm
by Nigel S
I am running TM 32,s on a tuned H2. I am currently running 170 mains.
But as kerry mentioned above should really get it on a dyno to sort out correct jetting.

Re: H1 500 carb upgrade

Posted: Wed Feb 10, 2021 8:40 pm
by gary62
I'm running VM 34s as well. best mod i ever done... cant believe i spent 8 years fucking about with 50 year old vm 28s

Re: H1 500 carb upgrade

Posted: Wed Feb 10, 2021 8:46 pm
by gary62
If you want to know about settings for the vm 34s i can give you mine as a starting point. i'm running velocity stacks... but like homo boy Kerry said stick her on a dyno. If you send Kerry some nice flowers i'm sure he will send you his too :smt007

Re: H1 500 carb upgrade

Posted: Wed Feb 10, 2021 8:58 pm
by H1anker
Yes please.
VM 34 it is. Fairly cheap and plan on keeoibg the oil pump

Re: H1 500 carb upgrade

Posted: Thu Feb 11, 2021 7:54 am
by Kezsam1
gary62 wrote:If you want to know about settings for the vm 34s i can give you mine as a starting point. i'm running velocity stacks... but like homo boy Kerry said stick her on a dyno. If you send Kerry some nice flowers i'm sure he will send you his too :smt007
Gary, I'm sure your go slow jetting will be really appreciated :mrgreen:

Re: H1 500 carb upgrade

Posted: Thu Feb 11, 2021 12:28 pm
by mraxl

Re: H1 500 carb upgrade

Posted: Thu Feb 11, 2021 1:32 pm
by husson73
am TM 32 with power jets on my H2A best tuning I ever do with Schipmann's heads with the good squish :smt025

Re: H1 500 carb upgrade

Posted: Thu Feb 11, 2021 1:48 pm
by Per K
The market is flooded with cheap china fakes. The china fakes even say "MIKUNI CORP" and "JAPAN" on the castings.

The real thing:
https://www.ebay.com/itm/Genuine-Real-M ... SwETVfzmy9

China fake:
https://www.ebay.com/itm/Carburetor-For ... SwjrFcNwfi

Re: H1 500 carb upgrade

Posted: Thu Feb 11, 2021 1:50 pm
by husson73
This was thje reason I bought mines on french Mikuni importator.
Evil bay, you never know what you will really get for carbs.(the whole carb or the parts)
Just know that at $ 79.99 new there is no way it will be real Mikuni but in the other side even if you pay the price of real mikuni...

Re: H1 500 carb upgrade

Posted: Wed Feb 24, 2021 8:11 pm
by H1anker
Where do I get rubber manifold to fit the spacers and vm34 mm carbs?
Do a set for the h2 750 fit?

Re: H1 500 carb upgrade

Posted: Wed Feb 24, 2021 8:24 pm
by Kezsam1
H1anker wrote:Where do I get rubber manifold to fit the spacers and vm34 mm carbs?
Do a set for the h2 750 fit?
I got mine from Allen's performance, but I believe motocarb do them as well Thumbs Up