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Engine

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  Gearbox Bearings
  size code bearing gearbox rebuild • • Calum

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  No one has replied

• 

  3rd piston ring please help
  • declan

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  J

  Whoa, that opens up another can of worms...

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  Took head off after breakdown
  • Zrako

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  A

  Worse case its only £41+vat complete new

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  Good thing I didn't do what you guys told me
  • declan

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  4
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  @Calum I know it's my doing but I had to fit and adjuster so it's all done now

• G

  Dt 520 pitch chain length
  • gareth_iowc

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  11
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  J

  For chainsplitting, nothing beats an anglegrinder =)

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  What is the pre mix equivalent to the autolube at idle
  • declan

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  my rs use to eat plugs at first like that bad I carried a few and the tools every where I went I mean I would still carry plugs anyway with a 2 stroke but the point is it was because of too much oil and it would be a pain every time you was in a hurry and ran like shit after a few rides if I was you I would pick one or the other you're gonna have a bad time in the rain at the side of the road a few times if not

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  Do conventional/ normal kickstarts fit the dtr
  • declan

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  No one has replied

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  Is this oil flow enough?
  • declan

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  @Jens-Eskildsen It would make sense for the pump to be designed that way.

  The oil pump is controlled by two elements, indirectly from the primary shaft, and by the cable.

  However, if you look at the pressure at the crankcase using a vacuum gauge, I'm sure you'd see negative air pressure.

  Since my car has a vacuum gauge, I know when my foot is off the throttle I see like -0.8bar.

• C

  Anybody had to do this ?
  • castrolsniffer

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  C

  Been on the RD sites and they are full of info on these bushes ?
  Shocked as I've done a lot of Dt's over the years and never had this problem.
  A firm called tss make billet power valves and bushes and there is talk of boring out old bushes and having a sleeve pressed in.

• 

  can only select 2 gears.
  • admiral323

  11
  11
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  big thanks for all the replys.got it all running today.replaced the clutch as well.cheers

• 

  Full circle cranks
  • declan

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  56
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  No one has replied

• Y

  1989 dt125r wont idle after rebuild. HELP!
  idle issue dt125r • • Yammy98

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  281
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  J

  Agreed on the verniers you cant meassure the cylinder precisely with those.

• 

  Need your opinion please
  • declan

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  7
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  As said, two strokes smoke. So just saying it smokes isn't an indication of how good the deal is.

  If it's blue smoke, then at worst the piston rings are worn out.

  If it's black smoke then it needs new crank seals.

  Neither are really a problem for a two stroke engine to be honest.

• V

  Need advice
  • vtrn_raptor

  9
  9
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  @Calum also If you look close it looks a slight shade of gold whereas 2 stroke is black alll the way through so +1 on gearbox oil

• J

  Pressure in the coolant bottle
  • johncroz

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  @Jens-Eskildsen If the bottle is overfilled, it SHOULD just leak out the overflow hose.

  But so long as the pressure is gradual. If it gets a surge it will rupture the cap.

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  Rpm drop when put into gear
  • declan

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  5
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  103
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  @Calum thanks

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  Loud induction noise
  • declan

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  4
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  122
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  @CYBER-NINJA will when I can air box is complete and sealed up it does hesitate if I quickly rev from idle but when riding it's perfect

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  Where does this belong pls
  • Zrako

  6
  6
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  166
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  P

  Hello there !
  100% item 7 from crankcase
  i recently rework my engine...

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  Engine Weight
  • Mightyman

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  6
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  152
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  Cheers guys

• 

  Clutch - sliding bearing (bushing)
  • Zrako

  4
  4
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  107
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  Yeah , seems like its pressed there , cant find it anywhere so bought replacement clutch.