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earnestT Added a reply to RM250 '10 Transmission tear down, assistance needed with parts
10/10/2020 8:10am u need to check each gear that are anchored to shaft, whether the gear turns or is anchored it needs as little side play as possible. this keeps the gear that slides into it from being pushed out from side play. now comming up with correct spacers thickness wise is hard to do. back in the day you could get...
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earnestT Added a reply to RM250 - High RPM problem - SOLVED!
4/5/2019 11:14am I meant 10 years
earnestT Added a reply to RM250 - High RPM problem - SOLVED!
4/5/2019 11:13am
earnestT Added a reply to RM250 - High RPM problem - SOLVED!
4/5/2019 11:13am U could have the valve that rotate on each side back wagon the wrong side. Pull them out and look at each on. The have a r or l on em. Take top cover off of valve assembly check valve opening by looking into exhaust hole while operating linkage. All three off these exhaust holes must be opened when actuator...
earnestT Added a reply to Suzuki DS80 running problem
4/5/2019 6:26am Seal leaking behind flywheel
earnestT Added a reply to RM250 - High RPM problem - SOLVED!
4/5/2019 6:24am Yes. Power valve. Also. Do a leak down. Test, it's something all professional builders do on a two stroke
earnestT Added a reply to HELP!!!02 rm250
2/28/2019 4:57pm I have a top one.
earnestT Added a reply to YZ ignition timing
2/15/2019 12:06pm It's a combination of all things , compression, how much leak down past the rings, if the engine is sealed up, which is checked with a different leak down tester. Everything has to b good or it won't pull down low out of the corners. . A rear tire that is 2 chunky , ala 2 much traction will cause...
DavetheVintageGuy Liked a reply to forum topic Flip-UP facemask
1/26/2019 1:28pm
This was one of the BEST early Hallman Products they ever made. Worked great for keeping your googles clean for the start. 
This forum topic has 18 replies.
Martini637 Liked a reply to forum topic transmissions
1/26/2019 1:26pm
just curious 2 questions, why do you feel you need this work done? and what do you mean by bulletproof? more durable? able to handle more power?
This forum topic has 6 replies.
nch209 Liked a reply to forum topic transmissions
1/26/2019 1:26pm
I have lots of hard laps on built 2 stroke motors. Only transmission problem I ever personally encountered was on a late model YZ250. I rounded the dogs off of a gear when the bike was stock with under 5 hours on it, send the motor to Pro Action and they did a full build on the motor, but replaced the gears with stock parts. Over 40 hours on that transmission now that no problems whatsoever. Guess it was flawed parts from the factory. That said, modern 2 strokes can take a good bit of abuse in the tranny, usually...
This forum topic has 6 replies.
kb228 Liked a reply to forum topic transmissions
1/26/2019 1:26pm
Theyre already bulletproof. Best thing you can do is have everything polished in a tumbler to reduce friction. That will extend the life of your dogs. Thats not really required though.
This forum topic has 6 replies.
Hondas4Life3 Liked a reply to forum topic transmissions
1/26/2019 1:26pm
Joes ATV performance and fabrication. He is a transmission specialist and does custom transmissions. Look him up on facebook. You want improved shifting you get the transmission ISF polished and cut. If you are looking for durability CRYO treating is common..
This forum topic has 6 replies.
earnestT Added a reply to transmissions
1/25/2019 11:37am If I have my motor apart, then I would think bullet proof ing the transmission would b just another steperson in having a greattach bike. Thanks
earnestT Started a new thread transmissions
1/24/2019 1:39pm what shop does work to bullet proof a racing two stroke transmission? any advise appreciated...
This forum thread has 6 replies.
earnestT Added a reply to 2 rm250 partout
10/18/2018 6:08am I sent u a text about some parts. let me know some thing. 3197 last 4 of my # thanks
earnestT Added a reply to What 2 stroke oil do you use
6/30/2017 1:54pm for the price and great protection, I use amsoil ....it works just like they say... 50 to 1 2002 rm250..