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Engine

Engine Related
532 Topics 5.0k Posts
  • Air filter box

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    M
    Lanze airbox snorkel gotta try and find also suppose be a nice mod
  • Clutch damper

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    M
    @SpookDog sorry for late reply all in with post was around £20 I think
  • Gear selector/lever

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    primal carnageP
    [image: 1669066394238-4bbcebcb-80d6-4e56-adcf-f0221c831cfc-image.png] .....Yz is totally different kick start to DTR gear shift is the same
  • dt 125x crankcase seal what way

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    Just make sure that it’s in there nice and squarely. Also that the ‘insert’ has a good clean finish with no bad grooves or crud buildup on it Did you split and rebuild the cases or just replace the seals? (both)... Just use a proper clutch holder to tighten (or loosen) the clutch centre nut, don’t stick a screwdriver in the outer basket ‘fingers’! The alloy snaps so easy and without warning!...
  • Dt 125 R engine mixed parts?

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    Hybrid_Theory01H
    @MadGyver I have the 3BN head on a 16.9 KW bike
  • Cylinder head O ring conversion

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    I know it’s an old thread, but: It’s the barrel that gets grooved, not the head (I thought it was head as well) and it is £35 @ PJME according to the email they sent me
  • Kickstart crank in electric start engine

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    No one has replied
  • Yamaha TZR Belgarda VHSA Carb Settings

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    M
    @Calum always amazes me how much difference a carb can make to a bike, I always remember my old dt50r when I upgraded the exhaust from standard to performance how untuned the carb was to the exhaust, turned a nippy machine into an sluggish horrible mess
  • Temperature sensor

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    @markus-w thanks for this
  • Clutch cables

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    declanD
    @Calum ill bet You £7.50 it doesent no it's just a project bike haven't ridden it more than 10 minutes at this point
  • Pre mix & jets

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    CalumC
    @SpookDog how it smells
  • Gear cluster circlips; is there a correct orientation?

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    Just dress the curclips with some emery, wet’n’dry or a Dremmel so there is no sharp edge PS or just use the back edge of a pair of scissors and run that round the sharp edge, anything that is made of good hard metal... I don’t think the edge even protrudes tho’ So it shouldn’t wear anything at all... I cheated out and reused the same clips when I stripped, cleaned and rebuilt my box. No issues with it. I would replace them if I could find same quality parts. No fleabay cr@p!!
  • Temp gauge

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    S
    @markus-w That’s what I think. Just from my experience with my bike (1988 with a 3mb barrel)
  • 4FU Repair

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    CalumC
    @SpookDog Poeton - https://www.poeton.co.uk/
  • Had a boo boo

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    M
    @SpookDog I managed to get it out with a glow plug magnet luckily it was just in the shaft didn't have to split the case thank god
  • Unable to keep engine running, please help!

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    @SpookDog Hi mate, I sold it on friday, it went straight away, both i and the buyer were happy with the price so a fair deal for the work it will need.
  • Removing rear engine/swing arm bolt

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    @marcusalcock Yeah. There’s steel bushes inside the bearings. The bolt will rust to them if not well greased on fitting. You could try putting a lot of hot water through the centre hole of the bolt but I doubt it’ll get enough heat to where it needs to be... Big hammer, big clean blows maybe put a sacrificial nut on the end of the thread for extra protection...
  • Powervalve cap, right hand side question

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    D
    @SpookDog Ahh I got ya! Yeah I’ve always tried to go genuine, just seeing if I could save a bit of money as I got 3 vehicles as it is and I’m trying to save up for a house lol Ok mate thank you, When I get my mate to make something I’ll upload a picture of the finished result. Yeah hopefully it’s just what I’m hoping it could be in my message back to Calum lol
  • New Dt125 owner with mix of engine parts needing help

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    @89dt125nick You can get a servo to bolt on easy enough. I did it with my bike and it makes all the difference, low end usibility and power at 7000rpm.. It has to be the 3 wire version for 88- 90 something bikes though... They are usually expensive but if you keep looking they do turn up. I just brought an good useable, original 3mb barrel, piston, power valve, pristine 3mb head and 3 wire servo with cables, rubber cover and pulley & housing for £130! 🤪
  • Rebuild autolube pump or premix

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    CalumC
    @spookdog The pump on the later engines just come straight off? Leaving the spline intact, but no dramas about that. Although I did remove that as well and just created a blanking plate.