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Author Topic: XS750 to XS896 big bore  (Read 27305 times)

Offline XS750AU

  • Posts: 330
Re: XS750 to XS896 big bore
« Reply #180 on: Jul 17, 2017, 05:39:16 »
New tyres arrived today. Very limited choice of options for the front. In the end I managed to track down a NOS Pirelli MT90 S/T 100/90 - 19 and a new MT90A/T 120/80 - 18 for the rear.
New head light is ordered which is 5.75" and I am planning on making up a setup similar to the 1978 IT400.
“Engineering is the art of being approximately right rather than exactly wrong.”

Yamaha XS750-2D
Yamaha XS896
Husaberg FE550
Yamaha TT250
Yamaha IT200N

Offline XS750AU

  • Posts: 330
Re: XS750 to XS896 big bore
« Reply #181 on: Jul 25, 2017, 00:56:39 »
Picked up the embroidery on the rough cut leather panels for the seat today. Hopefully I can get the trimmers onto finishing the seat soon.
“Engineering is the art of being approximately right rather than exactly wrong.”

Yamaha XS750-2D
Yamaha XS896
Husaberg FE550
Yamaha TT250
Yamaha IT200N

Offline XS750AU

  • Posts: 330
Re: XS750 to XS896 big bore
« Reply #182 on: Jul 26, 2017, 07:57:06 »
Happy days - picked up these off a Triumph 900 sprint. Cost $150 (100 Euro) delivered!!!!! Hope they go on the 896 without needing to re jet. Time will tell.

Question - when you polish alloy engine covers do you clear coat or leave them raw???
“Engineering is the art of being approximately right rather than exactly wrong.”

Yamaha XS750-2D
Yamaha XS896
Husaberg FE550
Yamaha TT250
Yamaha IT200N

Offline datadavid

  • Posts: 1151
Re: XS750 to XS896 big bore
« Reply #183 on: Jul 26, 2017, 08:28:36 »
I never clearcoat. Dont like the finish... too bad they are mikunis and not keihin, i got my keihins near perfect on the 896

Offline XS750AU

  • Posts: 330
Re: XS750 to XS896 big bore
« Reply #184 on: Jul 26, 2017, 08:41:51 »
I never clearcoat. Dont like the finish... too bad they are mikunis and not keihin, i got my keihins near perfect on the 896

He was selling these as he had just got a set of Keihins to replace them!!! For the price I could not let them go, as they are more modern than the MkII's that I have. Thanks for your thoughts on clear coat.
“Engineering is the art of being approximately right rather than exactly wrong.”

Yamaha XS750-2D
Yamaha XS896
Husaberg FE550
Yamaha TT250
Yamaha IT200N

Offline datadavid

  • Posts: 1151
Re: XS750 to XS896 big bore
« Reply #185 on: Jul 26, 2017, 08:45:37 »
Well, they work well on the sprint that delivers about 110hp, although water cooled so should be jetted leaner than an oil cooled at the same hp figures, so might just be very close!

Offline Ryan Stecken

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Re: XS750 to XS896 big bore
« Reply #186 on: Jul 26, 2017, 09:47:00 »
Happy days - picked up these off a Triumph 900 sprint. Cost $150 (100 Euro) delivered!!!!! Hope they go on the 896 without needing to re jet. Time will tell.

Question - when you polish alloy engine covers do you clear coat or leave them raw???
You are lucky.
I'm running exactly these carbs on my stock xs 750.
I will have a look at which jets i'm running.
I however changed all ORings (especially under the needle seat),there is a british firm that sells Oring kits for them.
They are great carbs and perform really well.
As for the alloy,I never clear coat (it will not hold up for very long,as its also slowly corroding),just wipe it down now and then with a rag and wd40...

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« Last Edit: Jul 26, 2017, 09:48:38 by Ryan Stecken »

Offline jpmobius

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Re: XS750 to XS896 big bore
« Reply #187 on: Jul 26, 2017, 11:34:57 »
Very cool embroidery.  It's the details that define a project.  Hate to point this out, but I see it so often I guess not too many folks know.  While the three tuning fork logo is common to both Yamaha (Music) and Yamaha Motor, they are not the same.  The pointed handles of the tuning forks pass through the perimeter circle in the Yamaha Motor Company logo, but are contained within the circle in the Yamaha Corporation logo.  No doubt it is a small difference (probably not to the two branches of Yamaha), but I figure most people that are detail oriented likely also wish to have said details correct.  I'm not suggesting that you re-do the embroidery, but might be good to know for next time!
Mobius


On a long enough timeline, the survival rate for everyone drops to zero.

1973 RD350 Yamaha build  http://www.dotheton.com/forum/index.php?topic=66498.0

Offline irk miller

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Re: XS750 to XS896 big bore
« Reply #188 on: Jul 26, 2017, 11:50:08 »
Very cool embroidery.  It's the details that define a project.  Hate to point this out, but I see it so often I guess not too many folks know.  While the three tuning fork logo is common to both Yamaha (Music) and Yamaha Motor, they are not the same.  The pointed handles of the tuning forks pass through the perimeter circle in the Yamaha Motor Company logo, but are contained within the circle in the Yamaha Corporation logo.  No doubt it is a small difference (probably not to the two branches of Yamaha), but I figure most people that are detail oriented likely also wish to have said details correct.  I'm not suggesting that you re-do the embroidery, but might be good to know for next time!
The "M" is different, as well.  The center reaches the bottom on the motors division logo, while it does not on musical.

Offline XS750AU

  • Posts: 330
Re: XS750 to XS896 big bore
« Reply #189 on: Jul 26, 2017, 20:12:27 »
The devil is in the detail.  You are absolutely correct about the detail of the logos.  If we had followed the logo to its absolute detail then the tuning  forks would have been solid colour and not the perimeter stitch. The logo is 120mm diameter and I did not want the logo to dominate the seat, so to make it more subtle I went for the perimeter stitch. This then created a problem with the outer ring as to follow the embedded points or simplify it to a thin single ring? Discussed the design with the trimmers and they were worried about the durability of the Yamaha Motors logo being embroided into the leather. Remember every stitch puts 2 perforations into the leather. As this was a potential seating position we compromised on the detail to get a more durable seat.

Ryan - do you have the details of the O ring kits?

Thank you all for your input.
“Engineering is the art of being approximately right rather than exactly wrong.”

Yamaha XS750-2D
Yamaha XS896
Husaberg FE550
Yamaha TT250
Yamaha IT200N