Added reply in a thread 97 CR 250 troubleshooting 11/2/2017 5:18 PM

For future reference, you can check the powervalve operation on that bike by removing the 17mm nut on the left side of the cylinder. Once the nut is off, start the bike and rev it. You should be able to observe the powervalve rotate open and close through ... more »

Added reply in a thread Loc-tite During Stem Swaps 11/2/2017 5:12 PM

Exactly, it's impossible for the stem to come out once the bike is assembled. And if it somehow did work it's way loose or come out, you have problems that loctite isn't going to fix.

Added reply in a thread Bam Bam killing it 10/31/2017 7:25 PM

He sure was killing something with all that air revving.

Added reply in a thread Arizona Vitards!! 10/30/2017 7:47 PM

Yeah, from Sahuarita to MC Motorsports park is about 20 miles. You don't even have to get on the Interstate. Just take Sahuarita road east and then Houghton road north. Be aware the El Tour de Tucson bicycle race will be on 18-Nov. Thousands of bikes ... more »

Added reply in a thread Jeremy Martin on the new CRF250 at Sugo 10/25/2017 1:38 AM

Jeremy interview at 3:07. https://youtu.be/4xuSuX8_NTU

Added reply in a thread For the love of God, please help me tune this CRF50 carb. Getting frustrated. 10/23/2017 7:21 AM

The uni filter is matched for big bores with bigger carbs. It is too much air for that carb and that engine. Even if you get at the air screw I doubt it has enough tuning range to compensate for that filter. These bikes are cold-blooded and run on the ... more »

Added reply in a thread For the love of God, please help me tune this CRF50 carb. Getting frustrated. 10/22/2017 4:28 PM

1) yes, absolutely a clogged pilot jet can be the problem on even a brand new bike. As I explained in your other thread, shit pump gas can varnish in as little as a week and clog the tiny pilot jet on these. 2)You should not have to adjust your air screw

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Added reply in a thread Jeremy Martin on the new CRF250 at Sugo 10/21/2017 8:56 PM

Added reply in a thread Is the 98 Cr250 the best MX bike of all time? 10/21/2017 8:04 PM

Moral of the story, you gotta change your shock oil more than once every 20 years.

Added reply in a thread Is the 98 Cr250 the best MX bike of all time? 10/21/2017 7:51 PM

Man, Ronnie just caught a big ole 98 CR250 huckabuck right in the overalls.

Added reply in a thread Is the 98 Cr250 the best MX bike of all time? 10/21/2017 6:58 PM

Ronnie Mac beat a lot of the so called "evolved" KTM's and Husky's. Just sayin......

Added reply in a thread '94 or '95 YZ-250 for a project bike? 10/21/2017 12:44 PM

Yes, they changed the motor in 1995. New cylinder and power valve design and switched from Mikuni to Keihin carb. Most folks would say the 95 was ever so slightly better but it in reality it really was a wash. The bikes did not feel terribly different. ... more »

Added reply in a thread Jeremy Martin on the new CRF250 at Sugo 10/21/2017 6:18 AM

Looking at the radar, the northern, outer bands of the typhoon are already going across Japan more and more as the typhoon moves closer. That is likely where all this rain is coming from. Looks like we might have a new candidate for worst mudder ever.

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Added reply in a thread Jeremy Martin on the new CRF250 at Sugo 10/20/2017 9:38 PM

It might get much worse. There is a typhoon moving in the general direction of mainland Japan. I guess they've already cancelled some of today's practices.

Added reply in a thread Jeremy Martin on the new CRF250 at Sugo 10/20/2017 8:51 PM

Pulled from Dirt Sports

Started new thread Jeremy Martin on the new CRF250 at Sugo 10/20/2017 8:47 PM

Just a little bit sloppy.

This forum thread has 20 replies

Added reply in a thread How do I remove these bolts? 10/19/2017 8:30 PM

Pretty amazing that the entire case half didn't implode when they kept driving the bearing against that retainer. That case is stressed (possibly warped) very good.

Added reply in a thread Showa tools 10/19/2017 8:26 PM

The reign of Emperor Hirohito in Japan (1926-1989) is referred to as the Showa period. As a result, there are numerous companies in Japan named Showa producing everything from trucks to bread. These Showa tools are probably pretty generic tools with ... more »

Added reply in a thread RV to.......... 10/18/2017 8:56 AM

OK, I'm all screwed up. Sounds like RV will be kitted like Weimer a few years ago......

Added reply in a thread RV to.......... 10/18/2017 7:53 AM

I wonder if we'll also see RV going to Gaerne boots. Would seem odd for him to switch over to Tucker Rocky/Answer for gear but still be wearing the Astars boots distributed by PU. If he goes with Bell helmets and Gaerne boots he'll essentially be wearing ... more »