DT125r in a Kart
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Sorry for the long first post, been doing lots of research/reading up...
So we have a kart with a DT125r.
Has no battery (doesn't need lights) and rely on just the kick start to start the ignition.It runs ok, but a couple of things where we think it should be faster.
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It has no voltage regulator on it, does this matter?
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It also has a 3RM20 CDi - supposedly the non restricted item, but no reed switch in the loom (no speedo to pick up from) would this cause max rpm restrictions when driving?
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The powervalve does not operate when revving the engine stationary - should it? (5 wire type), when engine running should we get voltage to at least one of the 5 wires?
Thanks
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@Markk
I wouldnt bother with the DT motor unless you really feel the need, they are better lighter smaller kart motors available for the job. It would be a chew on setting the chassis up with the gear box drive position then your looking at seating position exhaust gearing brakes etc etc. Having taken my son Karting from an early age and spending thousands on bambino and cadet class and that was just for fun at weekends not going down the racing route, The 125 is a different league and bigger financial pockets are required. It’s a nice thought but unless you're chassis builder and have access to a workshop I just wouldn’t go there. But if you want to do something original as a gimmick which you’ll never get an MOT for and the Feds would crucify you if they caught you on anything that looks remotely dodgy. I’d just leave well alone IMO. -
Don’t know anything about the five wire servos, but I do know that the 3 wire servo doesn’t work without a battery. If it’s not turning (@ 6-7000 rpm) it’s not working.
A lot depends on the stator plate fitted to the motor. Early motors had 3 separate ignition, lighting & charging coils fitted.
Sorry I can’t help definitively
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@Scootjockey said in DT125r in a Kart:
@Markk
I wouldnt bother with the DT motor unless you really feel the need, they are better lighter smaller kart motors available for the job. It would be a chew on setting the chassis up with the gear box drive position then your looking at seating position exhaust gearing brakes etc etc. Having taken my son Karting from an early age and spending thousands on bambino and cadet class and that was just for fun at weekends not going down the racing route, The 125 is a different league and bigger financial pockets are required. It’s a nice thought but unless you're chassis builder and have access to a workshop I just wouldn’t go there. But if you want to do something original as a gimmick which you’ll never get an MOT for and the Feds would crucify you if they caught you on anything that looks remotely dodgy. I’d just leave well alone IMO.Thanks for the reply, karts built, we do have a workshop/fab shop etc. The karts just a toy for my son who learns by building them. This one is a different beast and has defo been a challenge. We have done a few test days, indoor and outdoor and now we are just ironing out the niggles like YPVS not working above.
Does the CDI regulate/rectify the generator output itself?