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Engine

• 

  Gearbox Bearings
  size code rebuild gearbox bearing • • Calum

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  1
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  1040
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  No one has replied

• T

  TDR issue
  • TDRnoob

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  Spark Plug looks fine mate.

  I didn't think it was fueling.

  A plug chop must be done at high RPM WOT and the ignition to be switch off and clutch pulled in then bike pushed home

  You don't get any sort of idea of how the engine is performing whilst pootling around. However you do see if there are any problems.

• U

  Heat seize?
  • ukchad

  11
  11
  Posts
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  So if this were a four stroke engine I'd be like yeah, break her in.

  But sorry, piston and rings is simply maintenance on two strokes.

  I would bed the rings in to the new bore, or give the bottom end a good run in (which you haven't built so no need). I'd do the rings and piston in 10k miles.

• I

  Inspecting powervalve
  • Irongamer727

  8
  8
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  119
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  @calum said in Inspecting powervalve:

  @nottsbiker Not true as it happens. The bush the oring sits on can actually wear out as well, elieve it or not.

  Sorry had assumed it was locked open

• 

  How would one simply bleed the autolube?
  • ricky0115

  4
  4
  Posts
  55
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  Yes, they have built the engine. Ahh i get it, not so complicated after all.
  Thanks

• P

  Can get bike to run spraying starter fluid in spark plug hole but not with carb?
  • PerithTV

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  12
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  174
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  V

  Is their a washer under your main jet if not that might be the problem

• I

  rattle sound
  • Irongamer727

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  A

  For the sake of £20 on gaskets and 30mins work I would pull the top end off could be little or nothing but atleast you know. I'd cringe riding around sounding like that I'd be constantly waiting for it to go bang

• 

  After some expert help!
  • ricky0115

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  32
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  @calum thanks man appreciate it

• 

  What temp before over heating
  • declan

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  4
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  Think it's around 130 degrees approx

• V

  Need help
  • vtrn_raptor

  167
  167
  Posts
  3229
  Views

  

  @vtrn_raptor I got one of those Cyclone alarms, which is perfect for my use case.

  A full paid tracker system can really save your bacon.

• 

  DT125R Bogging
  • Minia

  10
  10
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  210
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  @calum Cheers, I'll give what I can a look.

• K

  Head
  • Killersbeez

  23
  23
  Posts
  590
  Views

  K

  
  Got this in the mail yesterday, pumped to get it on the bike when the domed piston comes. TBH it looks like it hasn't even been run lol

• 

  Clutch
  • Ricky

  14
  14
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  285
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  @declan you say tight as a good thing? It really isn't you will be burning your clutch up

• K

  DT pipe
  • Killersbeez

  5
  5
  Posts
  156
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  Depends which TDR you've got.

  If its the deltabox one then no as they have their own unique fit, where as the Italian ones are / appear identical to DT-R ones. The other bonus is that I doubt the Italian ones were ever restricted.

• 

  Clutch cable fiasco 😞
  • declan

  12
  12
  Posts
  199
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  @darty he said the inner cable was 115cm but I got it down to more like 119cm

• P

  DT125R vs DT125RE Piston
  • PJT95

  4
  4
  Posts
  124
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  That piston is a bloody work of art! Wow.

  DTR/RE/X/Derbi GPR/KTM LC2/SachsZZ125 - Can all run the same 3MB piston.

  DTR-DTRE, are the same barrel and stroke.

• M

  2002 dt125r rev limit??
  • Mitch_350z

  37
  37
  Posts
  705
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  M

  @cyber-ninja I have moved the reed switch behind the speedo but not unplugged anything??

• 

  3rd piston ring please help
  • declan

  32
  32
  Posts
  645
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  @declan Yeah, like I said. Get it all back to exactly how it should be. Then we can help to diagnose the fault.

  It might be overshadowed by one of the many mods that have been done to the bike, hence why we are all struggling to come up with a single solution.

  Or learn how jetting works. There is plenty of guidance on this forum for said information.

• 

  Took head off after breakdown
  • Zrako

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  33
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  1037
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  A

  Worse case its only £41+vat complete new

• 

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

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