Recent content by cosworth

  1. cosworth

    Yamaha SR250 - A clean standard build

    This is very solid.
  2. cosworth

    Post a pic of your latest purchase

    As a Ford man, this pains me.
  3. cosworth

    Whose got an Instagram?

    @kaijumoto Bikes and photography. Occasional cat.
  4. cosworth

    1981 sr250 cam shaft

    http://partdiscounter.com/shop-by-make/yamaha/yamaha-350-camshaft.html Also, you're probably going to want to replace the rockers. Once you get them out you may be aghast at how worn they are. Get more oil to that head.
  5. cosworth

    1981 sr250 cam shaft

    You bet. Slides right in. Niche sells them for cheap too. I do recommend drilling the oil feed hole in the head. You fit a drill bit down the hole by removing the bolt. These motors have nearly zero pressure, but rely on flow. There is a pin in the crank to force more oil into the head, and...
  6. cosworth

    1981 sr250 cam shaft

    Niche cams has a warrior 350 cam that works great.
  7. cosworth

    XS360 restoration for collector plates.

    Gratuitous photo shoot sharing.
  8. cosworth

    XS360 restoration for collector plates.

    The caliper is shared with many bikes. I just got a right hand/left hand caliper setup, did a single line to the right caliper and a hoop over to the left caliper. The hub was already drilled for the second brake and the forks have caliper bosses on both of them. It was either a factory option...
  9. cosworth

    XS360 restoration for collector plates.

    Same 14mm mc and so far it works. I have giant hands and have been grabbing brakes hard since I was 12. I may not notice much. If I were a rider with smaller hands or female I think the actuation might feel hard, modulation feels great though. All the yamahas that I have that have the twin...
  10. cosworth

    XS360 restoration for collector plates.

    Traveling through time with this bike.
  11. cosworth

    XS360 restoration for collector plates.

    It's only got 13,300 miles on it. Matching case and frame VIN. But one cylinder seems a bit off on compression. I've done a few tanks with 10/30 in the case to clean it out and I'll do a hot compression test with 20/50 in the case and try some oil down the bores. I think a valve lap and some...
  12. cosworth

    XS360 restoration for collector plates.

    Thanks everyone. I sold my first build and it helped fund this and my next two bikes. I have zero intention of selling this. I know I'd regret it. I've seen a lot of bikes in my day. This is the only xs360 I have seen in the flesh and I keep looking for them....
  13. cosworth

    XS360 restoration for collector plates.

    A literal barn find at the base of a ski resort. Dry stored in a relatively arid climate. Left home at 6am, drove all day with the dog, grabbed the bike for $400 CDN, drove straight home and was last vehicle on the last ferry home. It languished on my bench for a while as I sourced some silly...
  14. cosworth

    130/70-18 on a 2.15 rim?

    Duh. But a lower profile reduces squirm. I'm after profile, not width.
  15. cosworth

    130/70-18 on a 2.15 rim?

    Yeah, I put all avon's data into a spreadsheet and I agree. I was mistaken about tje actual size of the 130/70. I'm floored that not one company on the planet sells a new 2.5 or 3.0 35h-18 in orange. Moose makes the closest with a 2.15. I either re-evaluate my colour choices or give up on...
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