'92 Yamaha WR200



  • Hello,
    I guess its time to show the best one of my bikes.
    I bought her in '15, its an US-import bike.
    She was sitting for a long time, I guess because of the broken clutch basket and worn out nicasil, but the bike was really in good condition, not modified and never taken apart, even tho there was few missing things.
    I took care of the basic stuff and took part in the amateur cross-country championships in '16 and '17. I was 3rd both times in the "Junior" class (max driver age 21). Only the 2-stroke 250s were faster. The second event was very muddy and the WR got really beaten up. Clutch was totally gone about 100m before the finish line but thanks to help of my friend I was able to push the bike thru and finish the race. After that the WR got a complete rebuild and was ridden casually around the local terrains. Last year I took her apart partially once again to do the things I didnt do before, that was shock rebuilt, removing the dents from the FMF pipe, installing a slightly ported cylinder with a new sleeve and a Wossner piston and many smaller things. Today I fired her up for the first time but she needs adjustments, especially finding out the main jet setting. Generally I want to keep her looking as close to the original as possible, only modifications are: handlebars, exhaust, front springs from a '89 YZ250 and Boyesen reeds. Im kind of the oem-look freak and I love buying NOS parts, so she will stay this way. Now its time for the pics:

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    Thats how she looked in the ad

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    First ride

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    With her older sister

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    2016 Cross country amateur championships

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    2017 Cross-country amateur championship

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    After the clutch went bad

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    During the rebuild

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    After the rebuild

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    First ride

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    The power valve patent that is installed right now

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    High-quality sleeve

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    Some of the NOS parts I have laying around

    Short vid from last year



  • Oh yes that was looking fabulous after the rebuild.

    Glad to see you putting it to some good use too!



  • Looks great! Nice to see another one



  • I've been having fun with jetting today, currently im using 220 main jet and 37,5 pilot jet, but the bike is still running a little rich. Its kinda weird that after changing the silencer or pipe in DT125R you install 240 & 30 jets and the bike is running fine, but the WR with the FMF pipe likes the small jets. Originally there was a 210 main jet installed but after the new piston is runned-in I think of buying the 200 size. The air mixture screw is almost totally open now(means a lot of air) but the bike is still running rich, and as I go down with the sizes its better and better. I have the rubber air-scoop in the airbox still installed and it will stay this way. Other than that I love the new high-quality sleeve and the power it provides. Maybe Ill go for a ride tomorrow, but there's still some work to do, like rebuilding the front caliper and the brake pump.



  • @Challenger it's not just the main jet size to take into account. The needles jet and the Jet needle is also to take into account

    • The dt200wr / wr200 has a power jet


  • @Louis-DT-WR I went 2.5 up on the pilot jet from 35 to 37,5, but the engine doesnt like any bigger jets I try to install. I didnt take the power jet into account, it says on the parts diagram it should be 0.8 originally, I'll check that out. The needle is always in the most closed position(pin on the top mounting point), otherwise the engine doesnt want to rev at all.


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