Author Topic: Gunner Gasser style to YZ250H adaption  (Read 10739 times)

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Offline tony27

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Re: Gunner Gasser style to YZ250H adaption
« Reply #15 on: October 30, 2011, 04:57:26 pm »
What did you end up coming up with, got the same issues with my 465 & really don't like the housing someone has butchered to fit that has the cable coming straight out the front then bending along the bars
Much prefer the genuine gunnar gasser on my CZ both in action & how the cable runs

Offline YZ250H

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Re: Gunner Gasser style to YZ250H adaption
« Reply #16 on: October 30, 2011, 09:21:52 pm »
Gunner Gasser can be made to fit as someone has fitted one to my 465.  Works well.  Haven't really looked into how it was done.
For the 250 I ended up paying way too much for the standard thing.  Standard cable and everything.  Kind of the cheats way out but .....
You can get everything NOS apart from the internal gear.  The throttle tubes are hard to get hold of but but not impossible.

I still have the gunner Gasser copy throttle - just looking for a bike that the throttle fits on properly, then I will but that ;D ;D.
In the defence of the people on Ebay that I bought it off they did say it wouldn't work on a Yamaha.  I thought "how hard can it be".  Apparently too hard for me  ::) ::)
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline tony27

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Re: Gunner Gasser style to YZ250H adaption
« Reply #17 on: October 31, 2011, 05:16:10 am »
I don't feel like forking out $150us postage for a second hand throttle assembly & was hoping you'd come across a cable that fits, may have to work out how much outer cable to remove

Dino Rider

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Re: Gunner Gasser style to YZ250H adaption
« Reply #18 on: October 31, 2011, 08:20:08 pm »
YZ250, i have the original 250 H throtle setup with a broken tube and broken clear top but the alloy bits and internal gear are all good , make me an offer, i live near Sydney and will post to you if you want.

Offline Iain Cameron

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Re: Gunner Gasser style to YZ250H adaption
« Reply #19 on: October 31, 2011, 09:25:53 pm »
Guys remember there are two types of twist grips US and EURO , We in Aust had the Euro with the gear and clear top . Where as the US had a straight pull unit . the Euro type is avaliable from Yamaha Aust . Iainyz
Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club

Offline YZ250H

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Re: Gunner Gasser style to YZ250H adaption
« Reply #20 on: November 01, 2011, 02:15:20 pm »
YZ250, i have the original 250 H throtle setup with a broken tube and broken clear top but the alloy bits and internal gear are all good , make me an offer, i live near Sydney and will post to you if you want.

Sounds interesting as I think the 125H has the same arrangement.  I think I have the rest of the bits to make that work.
Want to post a picture or two ??
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Dino Rider

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Re: Gunner Gasser style to YZ250H adaption
« Reply #21 on: November 01, 2011, 07:19:42 pm »
yz250 sorry i am too stupid to post pics, check PMs.

Offline firko

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Re: Gunner Gasser style to YZ250H adaption
« Reply #22 on: November 01, 2011, 09:48:18 pm »
Quote
still have the gunner Gasser copy throttle - just looking for a bike that the throttle fits on properly, then I will but that  .
Genuine Gunnar Gassers are good things but those Taiwanese copies are positively dangerous and I wouldn't use one under any circunstances. The little cutout where the cable nipple slots in has a tendency to break, causing the nipple to turn and sometimes jam in the throttle body...often on full throttle. I've had it happen to me twice and many other racers have experienced the same thing. There's a thread on here somewhere full of horror stories.
'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Offline YZ250H

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Re: Gunner Gasser style to YZ250H adaption
« Reply #23 on: November 02, 2011, 02:05:09 pm »
Thanks Firko - its in the bin.  Not a lot of good to me anyway as it doesn't work on a Yamaha.
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline firko

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Re: Gunner Gasser style to YZ250H adaption
« Reply #24 on: November 02, 2011, 02:16:17 pm »
It belongs in the bin but as an aside, I can't understand why it won't work on a Yamaha. It shouldn't matter what bike it's on....I've used both Taiwanese and Swedish Gunnar Gassers on Mikuni carbed bikes including Yamahas with no problem whatsoever. The brand of carby used should be the criteria, not the bike it's on. I've used them on my Bing equipped Maicos and the Amal carb on my old DT1 as well with no adaption problems that I can recall. :-\
'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Offline Viper79

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Re: Gunner Gasser style to YZ250H adaption
« Reply #25 on: November 02, 2011, 02:38:16 pm »
Try the domino quick action, they work great. Use a universal throttle cable kit and make up the cable to your length and you're away.

Ballards have the throttle on page 66 of their catalog.

http://www.ballards.cc/catalogue-2011
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Offline VMX247

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« Last Edit: November 02, 2011, 03:11:27 pm by VMX247 »
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Offline shorelinemc

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Re: Gunner Gasser style to YZ250H adaption
« Reply #27 on: November 02, 2011, 03:55:49 pm »
i think john titman racing had some gunnar gasit throttles 07 3245 7499

Offline tony27

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Re: Gunner Gasser style to YZ250H adaption
« Reply #28 on: November 02, 2011, 04:29:46 pm »
It belongs in the bin but as an aside, I can't understand why it won't work on a Yamaha. It shouldn't matter what bike it's on....I've used both Taiwanese and Swedish Gunnar Gassers on Mikuni carbed bikes including Yamahas with no problem whatsoever. The brand of carby used should be the criteria, not the bike it's on. I've used them on my Bing equipped Maicos and the Amal carb on my old DT1 as well with no adaption problems that I can recall. :-\
It's not that they don't work rather you need a custom cable due to the gooseneck top on the carb, looks like most inner cables are around an inch too short to fit

Offline YZ250H

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Re: Gunner Gasser style to YZ250H adaption
« Reply #29 on: November 03, 2011, 09:46:23 am »
It belongs in the bin but as an aside, I can't understand why it won't work on a Yamaha. It shouldn't matter what bike it's on....I've used both Taiwanese and Swedish Gunnar Gassers on Mikuni carbed bikes including Yamahas with no problem whatsoever. The brand of carby used should be the criteria, not the bike it's on. I've used them on my Bing equipped Maicos and the Amal carb on my old DT1 as well with no adaption problems that I can recall. :-\
It's not that they don't work rather you need a custom cable due to the gooseneck top on the carb, looks like most inner cables are around an inch too short to fit

What Tony said.  It could be made to work, but is a lot of messing around.
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.