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Engine Related
519 Topics 5.1k Posts
  • Wich way does the athena 170cc piston go?

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    Haako SmithH

    Ok, thank you so much, just got a little worried that i had It the wrong way😅👌🏻

  • Bearing pullers?

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    NottsbikerN

    Just do it when no one else is home 😉

  • Engine hole

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    NottsbikerN

    Someone at Yamaha put it there for a laugh so people for years would ask whats this hole for? 😉

  • Cylinder/exhaust problems

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    Stevie WonderS

    @SpookDog said in Cylinder/exhaust problems:

    I’d be interested as well, specially if you have the head to match...

    Me? If so shoot me a message bud, they all match and they’re even the same pair that come together in Italy nearly 30 years ago

  • Oil level

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    declanD

    @jonne123 as long as you put the 750 in and didn’t leak or spill any it’s fine

  • Ypvs

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    J

    I need to tap m6 thread.

  • What spark plug do i use on Athena 170 kit?

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    Haako SmithH

    Thanks for answering!

  • Help!

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    declanD

    @jonne123 look a few videos up on YouTube there’s one I saw yesterday that shows the gear drum

  • Balance shaft

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    CalumC

    The engine vibrates like mad!

  • sprocket

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    CalumC

    Ah right. I think I run like 14 or something on my DTR lol

  • Oil pump

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    O

    They are different, new one is larger I think, have a brand new one on the shelf and will not fit older bikes

  • oil fouled spark plug

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    CalumC

    Should smoke a wee bit from cold. Then clear up.

  • Tzr cylinder on dt

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    O

    @Calum Ok thanks very much

  • Bike wont run

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    Haako SmithH

    Thanks for responding!
    I tried to unplug the killswitch, but nothing happened. The side stand switch is unplugged. Where is the fuse? Is it with the battery, cause i dont have a fuse there.

  • Carburetor jets

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    J

    Ok. But usually non restricted 125cc bikes the exhaust just moves the powerband. makes sense.

  • Cases

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    S

    @theportingmaster you got any 170 barrel and head for sale ??

  • Polini vs OKO PWK carburetors

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    Glynn123G

    Ive been off this forum for a good few months now but I went through a lot of tuning with a Polini PWK 32mm on my DTRE. On standard engine it took a lot of jetting and needle changes to find one that worked but when it was done it had a little more torque than stock. I had plans in the pipeline for a new engine build and programmable ignition which is why I changed the carb, my engine was worn out when I tried it at first but it does work and go well, you'll need to adapt your throttle cable. I have now built my new engine up with ignitech ignition and advanced map, carbon reeds etc and it needs rejected but goes very well, unfortunately I haven't had the time or enthusiasm to go on any bikes since spring last year but if I get round to it this year I will finish tuning the DT and write more on here, I have wrote some stuff about the polini carb on here before, I'm not sure if you seen it or not.

  • The wr200 3xp / dt125r 3bn hybrid 200cc engine no.2

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    O

    As I have finished the 1988 bike looking for something to do. Seriously looking at doing this to keep me busy. I'll have to look around and see if I can find the parts needed. Nice job!

  • Coolant overflowtank

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    J

    ill test it when i have time with haynes manual

  • Clutch will not engage

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    Haako SmithH

    @Calum Thanks for answering.