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The 2-Stroke Garage => Turning Wrenches => Topic started by: mavguy on May 22, 2020, 07:36:53 PM

Title: TZ750 Manifolds
Post by: mavguy on May 22, 2020, 07:36:53 PM
I believe the YFS200  and YZ80 reed valve are a direct bolt on to TZ750, so could one also use the manifolds from these.......?
Title: Re: TZ750 Manifolds
Post by: teazer on May 23, 2020, 11:39:00 AM
Look for the Blaster part numbers.  Many YZ80 models had smaller reeds.

I had a 750 top end on a TZ350 and I used those reeds but I don't remember which manifolds I used.  YZ85 are at an angle so they won't work so it makes me wonder in the blaster or YZ80 are straight on.  If so, they should work.
Title: Re: TZ750 Manifolds
Post by: 1976RD400C on May 24, 2020, 06:41:26 AM
The only manifold I found that fit the bigger bolt pattern and the carb fits on straight are Yamaha Tri Z. They also have a fitting for a crossover tube though.
Title: Re: TZ750 Manifolds
Post by: m in sc on May 24, 2020, 10:50:42 AM
yz 80/yz85 are same pattern as stock rd.  i assume you are looking for the larger bolt pattern?
Title: Re: TZ750 Manifolds
Post by: mavguy on May 25, 2020, 05:23:52 PM
Quote from: m in sc on May 24, 2020, 10:50:42 AM
yz 80/yz85 are same pattern as stock rd.  i assume you are looking for the larger bolt pattern?

Need them for my TZ750 project.

Regards
Title: Re: TZ750 Manifolds
Post by: mavguy on May 26, 2020, 04:55:11 PM
Need to know if any other motorcycle be used as a donor for the Manifolds.
Title: Re: TZ750 Manifolds
Post by: DesmoDrew on May 27, 2020, 03:26:18 PM
  The only manifolds which fit  correctly on TZ750 cylinders are TZ750 manifolds.  People have tried for years to find a different solution/option. It doesn't exist.
Title: Re: TZ750 Manifolds
Post by: mavguy on May 28, 2020, 02:41:51 PM
Quote from: DesmoDrew on May 27, 2020, 03:26:18 PM
  The only manifolds which fit  correctly on TZ750 cylinders are TZ750 manifolds.  People have tried for years to find a different solution/option. It doesn't exist.
Where do I get.those then?
Title: Re: TZ750 Manifolds
Post by: DesmoDrew on May 28, 2020, 03:29:10 PM
Your best bet is to enquire on the North American Two Stroke (NATS) forum.  Lots of racers there.
Title: Re: TZ750 Manifolds
Post by: teazer on May 28, 2020, 03:31:44 PM
From TZ-Mike or from Yamaha if they are still available.

TZ-Mike used to be a member on NATS.  Not sure if he still is.
Title: Re: TZ750 Manifolds
Post by: RDFL on May 28, 2020, 04:13:20 PM
This guy in Hollywood might have some, has tons of TZ stuff. --  https://www.ebay.com/itm/TZ-YAMAHA-250-350-NICO-BAKKER-ORIGINAL-GAS-TANK-ALUMINIUN-LATES-TZ-MODELS/183764105028?hash=item2ac931b744:g:c0AAAOSwQJhUddp2
Title: Re: TZ750 Manifolds
Post by: Jspooner on May 29, 2020, 07:38:44 PM
Quote from: RDFL on May 28, 2020, 04:13:20 PM
This guy in Hollywood might have some, has tons of TZ stuff. --  https://www.ebay.com/itm/TZ-YAMAHA-250-350-NICO-BAKKER-ORIGINAL-GAS-TANK-ALUMINIUN-LATES-TZ-MODELS/183764105028?hash=item2ac931b744:g:c0AAAOSwQJhUddp2

^^^^Looks like he's got mostly 250/350 stuff^^^^^.............there's a guy in the UK that has a set on eBay right now, would end costing about 400.00 by the time you get them here. He's actually has a lot of OEM and replica TZ stuff. 
Title: Re: TZ750 Manifolds
Post by: EE on May 30, 2020, 12:15:47 AM
I've gotten them from TZ- Mike before. Another option would be the billet style manifolds so I've reached out to a couple guys to see if there's something available. A couple of the early banshee monoblock cylinders used CR125 reedcages that are the same bolt pattern.
Title: Re: TZ750 Manifolds
Post by: GRA2STROKES on May 31, 2020, 05:24:27 PM
I'm almost positive I have a set of tz reeds and intake boots on the shelf. Want me to look?

Garrett
Title: Re: TZ750 Manifolds
Post by: mavguy on June 01, 2020, 05:31:03 AM
Quote from: GRA2STROKES on May 31, 2020, 05:24:27 PM
I'm almost positive I have a set of tz reeds and intake boots on the shelf. Want me to look?

Garrett
That would be great. Thanks.
Title: Re: TZ750 Manifolds
Post by: EE on June 01, 2020, 07:11:16 PM
One of the people i reached out to was Chariot Racing because i've been using their billet banshee manifolds more and more and i just got a reply back: "Yes they are that bolt pattern. They fit perfectly. Boots for 35 to 41 mm carbs and up to 49 mm with modification to the intake. Just a little grinding." So here ya go:
https://www.ebay.com/itm/230497012936?ul_noapp=true
Title: Re: TZ750 Manifolds
Post by: DesmoDrew on June 02, 2020, 09:20:01 PM
Two things to consider:
   1- If you are using OEM Yamaha TZ750 or Blaster reed cage assemblies, the OEM (or TZ-Mike) manifolds will have the 'ears' which protrude into the cage to smooth the flow (just like stock RD manifolds) and fit into the reed cages.
    2- If you plan on using V-Force reed assemblies, the 'ears' are irrelevant and will need to be trimmed off the OEM Yamaha (or TZ Mike) manifolds, so an aftermarket billet manifold, with a smooth face, will work just as well.

:twocents:

Title: Re: TZ750 Manifolds
Post by: GRA2STROKES on June 05, 2020, 06:29:11 PM
Sorry I forgot about this I'll look this weekend.

Garrett
Title: Re: TZ750 Manifolds
Post by: mavguy on October 09, 2020, 10:50:37 AM
Folks my project is nearing the end.would appreciate any help procuring TZ manifolds.
Title: Re: TZ750 Manifolds
Post by: m in sc on October 09, 2020, 11:12:51 AM
have you reached out to jim hinshaw @ fast from the past? he doesn't sell them but probably knows who does.  or contact fondseca.  One of them knows. 

and what happened to mfactory west and tz mike? I know he used to carry them.  :twocents:
Title: Re: TZ750 Manifolds
Post by: 1976RD400C on October 09, 2020, 11:30:28 AM
Do you need 4? I think I have 2.
Title: Re: TZ750 Manifolds
Post by: 1976RD400C on October 09, 2020, 11:52:51 AM
(https://i.ibb.co/92nMHp4/20201009-112915.jpg) (https://ibb.co/gwynZrW)
Title: Re: TZ750 Manifolds
Post by: Jspooner on October 09, 2020, 03:32:10 PM
Quote from: 1976RD400C on October 09, 2020, 11:52:51 AM
(https://i.ibb.co/92nMHp4/20201009-112915.jpg) (https://ibb.co/gwynZrW)

Unless these ^^^^^ will work for you there aren't a lot of options. TZ Mike is your best option. No, they are not cheap. Looks like you missed out on the set I mentioned were on EBay awhile back.