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Engine

Engine Related
531 Topics 5.0k Posts
  • Help dissecting carburettor

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    ricky0115R
    Nice one cheers
  • How would one simply bleed the autolube?

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    ZrakoZ
    @dan28 I have a small blinded hose with clip on side of the pump , so when bike idling , take the clip off and pull the blinded hose , manually by hand turn the pulley to max so the pump pumping max oil. I am replaced my oil hoses for clear ones so I can see there is no bubbles . I think its only important to bleed the oil tank - pump pipe. If you doing it , place a clean container (Im using old jar from pickles) so I can reuse the oil. If you did rebuilt the top end , you have probably used excessive amount of oil to lube the bearings and rings so I think its plenty for less than 5min job bleeding oil pump . If you premix your petrol in tank and bleed the pump , you will run too much oil which fouling spark. (Happened to me)
  • creamy gearbox oil

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    admiral323A
    cheers lads
  • Sump plug washer

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    NottsbikerN
    I'd fit a new one but its handy to do on the old gas cooker if you are working on the bike at night or on a Sunday etc
  • Piston reccomendations

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    NottsbikerN
    I've heard of a small company called Yamaha who might have one in stock Sarcasm aside any decent brand will be ok
  • Crank seal

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    NottsbikerN
    Haynes manual tells you how to make a crank pusher / puller so you can re-use your existing crank without having it rebuilt (assuming its ok that is). Personal preference would be to strip it down
  • Can anyone help diagnose engine noise?

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    P
    @calum I found that the wr200 clutch boss from 1992 were exactly the same as the dt ones and they are plentiful in the USA market selling for around £20-30 quid postage is also around £20 so around £40-£50 for a clutch boss instead of a NOS one for £110! won't forget the washer on this one
  • Another slight problem

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    CalumC
    @ricky0115 Yeah but would take cause the RPM's to increase.
  • Piston run in

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    V
    Okay I'll give it a go and do any of you run yours on pre mix?
  • TZR vs DT reed valve

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    CalumC
    The description says fits 4dl, 4dl ran bigger carb and they all ran different inleta. Potentially these won't fit DTR cages.
  • Heat seize?

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    CalumC
    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.
  • Inspecting powervalve

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    NottsbikerN
    @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
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    V
    Is their a washer under your main jet if not that might be the problem
  • After some expert help!

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    ricky0115R
    @calum thanks man appreciate it
  • What temp before over heating

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    NottsbikerN
    Think it's around 130 degrees approx
  • Need help

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    CalumC
    @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

    Moved
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    MiniaM
    @calum Cheers, I'll give what I can a look.
  • Head

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    K
    [image: dlpZonM.jpg] [image: 9RYYn6Z.jpg] 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

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    declanD
    @declan you say tight as a good thing? It really isn't you will be burning your clutch up
  • DT pipe

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    NottsbikerN
    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.