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Author Topic: The Twinstar Project  (Read 11535 times)

Offline CALfeRacer

  • Posts: 1096
  • Fat man on a little bike
Re: The Twinstar Project
« Reply #40 on: Oct 25, 2015, 03:34:53 »
Stock pegs are for sure. Don't want to mess with rearsets (that's for the RD). I'm thinking about shaving the foam on the stock seat, since the top layer is pretty crusty anyways.
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Afflicted by BAS: Bike Acquisition Syndrome. There's always room for one more!

Offline grcamna5

  • Posts: 1060
Re: The Twinstar Project
« Reply #41 on: Oct 25, 2015, 10:40:07 »
Stock pegs are for sure. Don't want to mess with rearsets (that's for the RD). I'm thinking about shaving the foam on the stock seat, since the top layer is pretty crusty anyways.

I'd cut down those 'humps' in the rear seat position to make it as flat as possible from front to back.Do you have an upholstery person there who can build you a custom seat cover once you're done?

 I just sent my CB125 seat out to a decent forum member on another forum who had his local person install a flat piece of closed-cell foam on top of my drivers/front section after cutting out a chunk of original foam and then recover it w/ her own custom cover;it doesn't say 'Honda' on the back anymore but sure is comfy up front after many hrs. in the saddle.I had them do what Sargents does but for less than half the price.I use the little bike for everything even long rides.
Do your Best,no one can take that from you.

Offline CALfeRacer

  • Posts: 1096
  • Fat man on a little bike
Re: The Twinstar Project
« Reply #42 on: Oct 25, 2015, 14:12:01 »
I don't have an upholstery person. I was gonna start looking around town though. I like the idea of flattening out the whole thing though.
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Afflicted by BAS: Bike Acquisition Syndrome. There's always room for one more!

Offline CALfeRacer

  • Posts: 1096
  • Fat man on a little bike
The Twinstar Project
« Reply #43 on: Oct 26, 2015, 22:12:01 »
Good and bad news. After a bit of struggle, engine is in the frame. I'll need to make a new top mount. Also, stock carb isn't even close to fitting in the older frame. So, I'll either run single mikuni or look in to making a two carb setup, which would eliminate most of my clearance issues.
I also found a pretty big JB Weld patch on the case next to the sprocket. Looks like it's solid, but I'll be sure to check for leaks when it's running. If that's the case, I might end up swapping the 250 top end on to the 200 cases and trying to swap in the 5 speed. Time will tell on that one
Almost forgot: on top of that, the splines on the shift shaft for the 250 are pretty bad. I should have a spare from a parts motor that will get swapped in. This can be done with the engine in the frame, correct?
« Last Edit: Oct 27, 2015, 18:13:48 by CALfeRacer »
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Afflicted by BAS: Bike Acquisition Syndrome. There's always room for one more!

Offline CALfeRacer

  • Posts: 1096
  • Fat man on a little bike
The Twinstar Project
« Reply #44 on: Oct 27, 2015, 15:17:34 »
Couple of pictures...
Here's the JB Weld patch job.

Here's a shot of how tight the clearance with the frame is. I'm guessing it's because the 250 had a longer stroke than the 200.
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Afflicted by BAS: Bike Acquisition Syndrome. There's always room for one more!

Offline CALfeRacer

  • Posts: 1096
  • Fat man on a little bike
Re: The Twinstar Project
« Reply #45 on: Oct 27, 2015, 15:59:22 »
So, I'm looking up carburetors and trying to figure out what direction to go. The stock carb is a Keihin PD23. Its a bit rough, but I think I can make it work. A Mikuni VM22 will also fit on the manifold the PD uses. I could also use a Keihin PE26 with the intake I got from grcamna5. Or, I could use a PE28 with the stock CM250 intake. I'd rather not use the intake I have, since it is pretty hard and I feel like it won't make a good seal (regardless of cracks, since I can patch those). I like the idea of the VM22 because of jet availability, but it also seems like it wouldn't be enough carb since that's what I have on my CB135. On the other hand, the PE26 I can't find new, so I'd have to get a used one.
Or, I could start chopping up a spare manifold and trying to figure out running a dual carb setup. ;)
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Afflicted by BAS: Bike Acquisition Syndrome. There's always room for one more!

Offline CALfeRacer

  • Posts: 1096
  • Fat man on a little bike
Re: The Twinstar Project
« Reply #46 on: Oct 30, 2015, 17:17:50 »
Anyone have some advice on what to do as far as carbs? At this point I'm about to just clean out the PD23 from the 200 and see if it'll work.
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Afflicted by BAS: Bike Acquisition Syndrome. There's always room for one more!

Offline DohcBikes

  • Posts: 2384
  • Fuck You.
Re: The Twinstar Project
« Reply #47 on: Oct 30, 2015, 18:15:08 »
Parts in hand? Sounds like a good place to start :)
burning bridges sometimes light the most productive paths

Online Brodie

  • DTT SUPPORTER
  • *
  • Posts: 2423
  • Gold Coast, Queensland
Re: The Twinstar Project
« Reply #48 on: Oct 30, 2015, 18:36:55 »
If you are after a new one check out OKO carbs. The should have what you need.
I'm not sure, but don't ask Brodie.

Way to many build and half done projects to list here.
Sr250, Gs750, Z50A, XV1100, A10, Z160A.

Offline CALfeRacer

  • Posts: 1096
  • Fat man on a little bike
Re: The Twinstar Project
« Reply #49 on: Oct 30, 2015, 21:29:28 »

Parts in hand? Sounds like a good place to start :)
I was just concerned that it might not be big enough.
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Afflicted by BAS: Bike Acquisition Syndrome. There's always room for one more!