Engine

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  Cases
  • Bluestoesonnose  

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  Hi, sorry to say I got offered one for £50 all in so I've bought that. Thanks anyways
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  Balance shaft
  • Bluestoesonnose  

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  @Bluestoesonnose Piccy's
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  The wr200 3xp / dt125r 3bn hybrid 200cc engine no.2
  • Louis James  

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  @Louis-James Genuinely, the weight saving is quite surprising.
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  Head and barrel gone away
  • Bluestoesonnose  

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  @Bluestoesonnose So the VHSA Carb was standard on the TZR Belgarda models that ran the 3MBP barrel. Which was a modified 3MB setup. That was my logic behind carb upgrades.
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  Is this the correct combination
  • Bluestoesonnose  

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  Cheers, I'll get them off to Tony for some port work and squish band work
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  Heads
  • Bluestoesonnose  

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  @Bluestoesonnose If you can you should do some dyno runs with each head on, just to get a clear picture of the difference each head offers and share your findings. As that will give us all a direct comparison and clearly show the benefits each head has to offer.
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  @r$$
  • Bluestoesonnose  

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  Always good to have spares!
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  Fitting electric start on DT 125 R engine.
  • 2stroketerry  

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  You'll need the DTRE/TZR Crank cases, TZR/DTRE Crank, fly wheel stator CDI, pick up and loom. Basically, you need a DTRE/TZR Engine.
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  Another head gasket question
  • Bluestoesonnose  

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  No sealant, just make sure the mating faces are completely flat. https://dt125r.co.uk/topic/11/how-to-i-gentle-skim-your-head-barrel
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  Top end gasket kit
  • Bluestoesonnose  

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  @Sgt-Robuck-5 Sounds like a bigger problem to me. I highly recommend Athena and of course genuine. If the surfaces aren't flat then no gasket will seal. I always recommend a quick homemade skim on the head and cylinder before refitting.
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  Crankcase breather
  • oldman  

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  @oldman lovely!
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  Engine Case Numbers
  • jamesdowning  

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  J

  Yeah not sure why, ive seen 2nd hand cases labelled 3BN 00, 01 and 02. Maybe its the place of manufacture, or just subtle changes in materials or something? Ive noticed the 00 case has a couple of shallower indents on the outside of the case, and a couple of radius corners are subtly different. Could be a different manufacturer
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  Bearings for Bottom end.
  • jamesdowning  

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  I think it's one of each bud. Think. To be fair once you split the engine it should be obvious. They will be labelled appropriately.
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  This topic is deleted!
  • DanRacing  

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  No one has replied

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  This topic is deleted!
  • DanRacing  

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  Aprilia RS 125 Hydraulic Clutch Conversion
  • Calum  

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  @Calum COOL vid thanks bro!!!
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  Reading the Spark Plug Color
  • panmil92  

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  @finnerz89 Used to notice it a lot on my little 50cc Aprilia RS when I was kid coming home from a late night!
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  2002 DT125R Engine Build
  • Bluestoesonnose  

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  @Bluestoesonnose I would look in the Haynes manual for answers on this???
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  Spark Plug Heat Range Advice
  • NINJA  

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  here's another simple spark plug guide; https://www.briskusa.com/spark_plug_cross_reference_heat_range_chart
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  Fuel hoses
  • Irongamer727  

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  @2stroketerry Yeah that's more like it!