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Author Topic: Yamaha TR1 'GULF Edition Hypercafe  (Read 8896 times)

Offline der_nanno

  • Posts: 385
  • Faster!
    • Greasy Greg
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #40 on: Oct 30, 2017, 16:48:54 »
Very nice, very nice indeed.

I am running VM38-9, 17.5 pilots and 170 mains. My 2in1in2 exhaust should flow roughly the same as your 2in1, so those jets should get you in the right ballpark.
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline Ryan Stecken

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  • Posts: 1838
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #41 on: Nov 07, 2017, 04:43:16 »
Finally was able to finish the engine nicely with fresh paint and polishing.





Amazing work on the motor freshup!
May I ask how did you treat the cylinders before painting?
Did you blast the assembled engine or just a good clean and degrease?

Thanks!

Offline tattoo

  • Posts: 178
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #42 on: Nov 10, 2017, 15:55:43 »
That engine is stunning!

Offline MichaelTR1

  • Posts: 20
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #43 on: Nov 14, 2017, 05:46:16 »
Very nice, very nice indeed.

I am running VM38-9, 17.5 pilots and 170 mains. My 2in1in2 exhaust should flow roughly the same as your 2in1, so those jets should get you in the right ballpark.

I am already down from 230 to 150. But still too rich. Probably with the cold weather we have here now 150 might be okay. Have to order smaller jets for spring and summer.

Offline MichaelTR1

  • Posts: 20
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #44 on: Nov 14, 2017, 05:49:16 »
Amazing work on the motor freshup!
May I ask how did you treat the cylinders before painting?
Did you blast the assembled engine or just a good clean and degrease?

Thanks!

Clean and degrease before and polishing after. To get it all shiney.

Offline der_nanno

  • Posts: 385
  • Faster!
    • Greasy Greg
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #45 on: Nov 14, 2017, 07:21:22 »
I am already down from 230 to 150. But still too rich. Probably with the cold weather we have here now 150 might be okay. Have to order smaller jets for spring and summer.

Perhaps your muffler is too restrictive? What are you using as an airfilter? You're sucking through the frame just like me so that shouldn't make much of a difference in its own right. I noticed that depending on how well the scavenging works the jetting varies dramatically.

Cheers,
Greg
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline The Limey

  • Posts: 407
  • Evil English Villain
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #46 on: Nov 14, 2017, 07:44:30 »
I've always fancied a bike in Gulf colours, and another in Martini Racing colours.  Looks great.
I was born a rocker.  I'll die a rocker.  And I'm proud of it.

Offline MichaelTR1

  • Posts: 20
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #47 on: Nov 16, 2017, 06:47:06 »
Perhaps your muffler is too restrictive? What are you using as an airfilter? You're sucking through the frame just like me so that shouldn't make much of a difference in its own right. I noticed that depending on how well the scavenging works the jetting varies dramatically.

Cheers,
Greg

Well might be climate dependant. I am at sea level. Not sure where you are situated.
But my exhausts are 1in1 without a connecting piece. Exhaust pipe have a larger diameter than original. Dont know the exact diameter at this moment but could very well be 50mm. K&N airfilter that sucks through the frame. My combustion engine knowledge doesn't stretch that far. So would you say that good scavenging leads to a smaller jet?

Also there might be a small difference with TM and VM carbs?

Offline der_nanno

  • Posts: 385
  • Faster!
    • Greasy Greg
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #48 on: Nov 17, 2017, 16:09:41 »
There's certainly a grain of truth in that, I run two 45mm mufflers, so that's almost twice the crosssection... Good scavenging would lead to bigger jets as you move more air and hence more fuel through the engine.

And yes, there's certainly a difference between TM and VM carbs, as they come with quite different needles and slide-cutouts.
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline MichaelTR1

  • Posts: 20
Re: Yamaha TR1 'GULF Edition Hypercafe
« Reply #49 on: Jul 16, 2018, 12:12:36 »
Mechanics!
For the Dutch Custom Bike Contest I enrolled my Virago. Please like this bike to get me to number 1!
Thanks!

https://www.facebook.com/CustomBikeContest/photos/a.295303404373848.1073741831.268091557095033/295304174373771/?type=3&theater