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Dougster

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Everything posted by Dougster

  1. I finally got around to buying the Carlsbad USGP 1980 One Day of Magic DVD. What a great movie! So, I've got a YZ465, but the second time I rode it, the engine froze. I'm going to pull it apart and see what happened, but in the mean time, I'm trying to plan ahead and get everything together to turn it into a Marty Moates tribute bike. Anybody have information about what he rode? Regards, Doug
  2. What happened after you bored it?
  3. I'm not going to try increasing the stroke on mine, but I've got a .060 over piston and some porting, plus I'm planning to run Torco 110, so I'm keeping the compression up. The bike already has Racetech suspension parts front and rear, so with a big high compression engine, it should make for a nice ride.
  4. Yes, they were really close to the minimum weight and there was a moment of fear after the race when the bike was weighed again. As far as I can tell, they had a bunch of titanium parts in the thing... Also, the engine was apparently stroked out to 493cc: http://www.cyclenews...aha-1980-1z.jpg
  5. Dougster

    CR 250 Potential Exhaust Port Bridge Problems

    Are you saying cast pistons are better than forged?
  6. Dougster

    AV gas

    No. Maybe? Probably not...
  7. Fun FTW! I know what you mean about hanging on for dear life! I seem to like that kind of thing though, which is why I'm going for the CR500...
  8. Dougster

    Cr250 rc valve failure

    Yes, it has happened before. I think this is a link to a solution: http://forums.mxtrax.co.uk/showthread.php?t=301955&highlight=cr250
  9. Dougster

    Coming back to 2-strokes, need more power for dunes

    Heehee! Well, you could do what I did and get the wife hooked on riding.. Here she is:
  10. Dougster

    New Cylinder A or B with Wiseco piston 03 CR125

    (With apologies to the OP.) The prosecution hasn't been requesting this additional evidence, but since you guys insist... :ride:
  11. Dougster

    Post pics of your CR's

    What did you use? A solution of laundry bleach and water?
  12. Dougster

    New Cylinder A or B with Wiseco piston 03 CR125

    It's not that big a deal to drill the holes. Assemble the piston on the rod and then put the cylinder on (don't use gaskets or clips or anything, you're just going to take it apart right away), then rotate the engine until the piston is down covering the exhaust port and use a pencil to draw lines on both sides of the bridge. Then it'll be easy to drill the holes, just stay between the lines...
  13. Dougster

    New Cylinder A or B with Wiseco piston 03 CR125

    Heehee, sorry man... (If I was the prosecution, I would be able to say, "I rest my case.") Did you ever PM Wiseco?
  14. Dougster

    Coming back to 2-strokes, need more power for dunes

    Ah, didn't realize you wanted one bike to ride everywhere, thought it was just going to be for the dunes... I don't think you can go wrong with a CR250, anywhere from 2000-2007. The 2000 and 2001 have a reputation for a stronger engine, and the 02-07 have better frames/suspensions. I have a VForce on my 07 along with a PC pipe and a bigger rear sprocket and it's great on trails and the track. Never had it at the dunes though. Eric has a 265 kit for the CR, and RB Designs seems to be the guy to go to for squish band stuff...
  15. Dougster

    Coming back to 2-strokes, need more power for dunes

    Heehee! (I weigh about 240 myself. I'm 6'5" and semi-athletic, so I'm not going to be able to lose much...) For dunes, I think you should skip the 250 and go right to a 500...
  16. Dougster

    after market pistons brands

    @scottiesbe, are you a machinist? I used to work in a machine shop making parts for the aerospace industry... Engineering is all about the art and balance of design. That is, you have to figure out how much of any particular quality is enough to accomplish a particular task. Is T6 enough or do you need T8? Is 6061 enough or do you need 7075? Why spend the extra money if you don't need to? Of course, by that way of thinking, we'd probably all be driving practical little boring econobox cars. The nice thing is that there are lots of options, and we can spend the extra money if we want to...
  17. Dougster

    New Cylinder A or B with Wiseco piston 03 CR125

    @jparisi48, dirtracker and CamP are apparently huge fans of cast pistons and seem to discourage anyone from buying forged ones. (Check out the "after market pistons brands" thread.) I bet if you send a PM to the Wiseco user here on TT you'll get the answer...
  18. Dougster

    after market pistons brands

    /me can feel the love! ROFL I remember pulling apart a couple engines that looked like someone had taken a hammer to the top of the pistons. In one case the valves floated and in another the guy ran pump gas in a supercharged engine. The one with the valves was a real mess. Luckily the heads were aluminum and we were able to salvage them with a bunch of welding and new valve seats. I seem to remember that we ended up just changing out the pistons in the supercharged engine and the guy was back in business...
  19. Dougster

    after market pistons brands

    We don't want to let facts get in the way of our opinions, eh?
  20. Dougster

    after market pistons brands

    Sorry man, I'm too busy spending my money on Torco and actually riding... Wouldn't it be cheaper and faster to just buy one cast piston and one forged and put them on an anvil and hit them with a sledge hammer until they break? My guess is that the cast piston will break into chunks, and the forged piston will dent and maybe crack. It would be fun to find out if that's really what happens. (And for grins, we could heat each piston up to a certain temperature first and then pound on them...) I weigh about 240, so I bet I could hit them thAngs pretty hard! (Wanna take a couple swings? Only five bucks!)
  21. Dougster

    after market pistons brands

    Wowsers, I've got to get out more often and read other sections of TT! I missed the "Please Stop Thanking Jesus, Please" thread. Being a believer in the FSM (have *you* been touched by his noodly appendage?) and the IPU, I would have had a lot of fun participating. Now just where did I put that cosmic teapot?
  22. Dougster

    after market pistons brands

    Dang. And I was just starting to have some fun!
  23. Dougster

    after market pistons brands

    Just because you don't understand it, does that make it wrong?
  24. Dougster

    after market pistons brands

    Thanks for the reply, but how does that answer any of the questions I asked?
  25. Dougster

    what size tires?

    I think it's 1.85... EDIT: And to answer your question, you can run any of the usual tires on those rims. I'm actually running a 120 on a 2.15" rim on my CR250, although I think a lot people would say the 120 is too big for a 250 two stroke. The rear tire will spread out a bit more with the 2.15" rim than it does with the 1.85". That might be a good thing if you're riding mostly hardpack since you'll get more surface area on the ground, but I'd think you'd probably be better off with a narrower tire on a 125. (I think a 100 on the 1.85 rim is the way to go.) EDIT2: Sorry, I misunderstood. I thought you were asking about the stock rim size of a 125 rear rim, which is 1.85. I still think a 100 on a 1.85 is the best for a 125...
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