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gear shifter seal ????
(Preview)
Wot do you call the seal that gear shifter goes through..??? Also can i just pop this oil seal out with a screwdriver and slap in a new one with out dismantling anything...eg slide it down the shifter and pop it in....of course bike would be lying on its side so gearbox oil isn't over the place... theirs a...
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auld geezer
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14
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561
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YZ125 Engine
(Preview)
Hi, just bought a 1991 yz125 frame and engine, supposedly ran before the guy stripped it but naturally I'd like to find out for myself. The powervalve needs replacing and is currently not fitted. would it be okay to fire the engine for a minute just so I can hear it run without putting the powervalve back...
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Jesse_DT
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3
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376
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bubbles in oil pump
(Preview)
my m8 swaped his oil pump hose over for 1 of them clear hoses u get of ebay and he can get rid of the bubbles in it when hes rideing it you can see a white thin line of bubbles in the pipe hes sat their for 10 mins with the bleed nipple off and still no luck should he try bleeding it with the bike leaning againts the w...
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DT200R MACCA
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2
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343
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Top end F******
(Preview)
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1990dtr (aka THIEF)
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21
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764
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dt cutting out ? runs out of spark?
(Preview)
hi again on my way to hospital today the dt lost all its power and came to a halt. i restarted it and got another 500yds sown the road and it did it again its like the spark just stops ? it runs fine for ages and ages then starts doing this any suggestions?
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stillbroke
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10
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433
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crankcase tuning...
(
1 2 3 4
)
(Preview)
well i had a pair of spare cases laying about as you do lol decided to take a dremel to them and widen the transfers to suit the head i'm doing. anyone had any experiance doing this? i'm wondering if the oil hole will still work as it should? it went from the edge of the port [IMG]https://i1094.photobucket...
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FunkeyMunkeyDavid
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119
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2915
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reed spacers?
(Preview)
http://www.ebay.co.uk/itm/Yamaha-TZR-TDR-DT125R-DTR-125-250-R1-Z-reed-block-spacer-kit-one-cylinder-/251211816598?pt=UK_Motorcycle_Parts&hash=item3a7d641e96
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tunertom
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7
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426
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Knocking on idle
(Preview)
Not sure where to post....
But, my bike has acquired a knocking sound when idling, had the bike go in 2 weeks ago for rejeting and to sort the mix. Since then it has started knocking on idle, any ideas or things to do to help discover what it is?
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ShaunyBoy
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10
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446
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pro-x piston and possible damage?
(Preview)
took barrel off today on other engine- suprised to find a 0.50 oversize pro-x piston. Anyone have any experience of these? gonna upload some pics as there are some scores down piston not deep ones and very slight marking in barrel. was going to for a rebore hence taking barrel off- but may get away with h...
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dread123
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24
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498
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Coolant leak?
(Preview)
Alright guys just went to replace exhaust bolts going into cyclinder head, after I removed the lefthand one after checking it fits I had coolant leak everywhere so im guessing I've damaged a pipe of something insead the head just wondering if any of you know what this could be ? Bikes an 07 RE . Thanks, Ro...
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robertdtr
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23
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447
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Need a rebore/tune where to send it to?
(Preview)
Hi guys, jus bought a 3MB barrel and head off here. I wanted to send it away to get rebored and maybe tuned a little. Does anyone know of any good places to send it to? I was thinking about PJ Engineering looks pretty cheap, has anyone used them before who could give a review? Thanks, St0F
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St0fxxx
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27
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538
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dt 125 r running issues
(Preview)
hi im new to this forum but not to bikes or dt 125 r's i had one a little while ago only a field bike but god was it fast for a old dt my dads got a rm 125 mint from new and it wasnt far behind and we used to race so its not like he wasnt opening it up, it just stayed with it but i stupidly sold it a little while back on ebay...
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jack whetren
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2
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305
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piston run in time
(Preview)
i have just had my piston and rings done on my 03 dtr at 11000 miles how long do i need to run them in for and what sort of maintenace do i need to do on my power valve as its been making a a bit of rattle noise for a while now it still works fine
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gooner78
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10
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730
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confused
(Preview)
my 02 dt 125 will not rev past 7k its ok up to that but wont go past 7k , also the 6th gear is pointless as it doesnt pull it just runs out of oooomph, i have an aftermarket pipe , but i have yet to remove the reed switch in the speedo, what exactly does just taking the switch out of the speedo achieve when its still...
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flydnb
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20
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439
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no spark
(
1 2
)
(Preview)
I put my bike away last sunday it was running fine today i went to take it out and i would start for a second or two then die on one occasion it started and ran for about 30 seconds then died i put a new plug in and it will not fire up at all now i took another new plug and tried checking for a spark against the cylind...
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gooner78
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32
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965
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Running issues
(Preview)
I took the project bike down the road this evening and after a few seconds hard acceleration the bike started stuttering a bit so eased off and it died. As i was still coasting along with the clutch in i let it out and managed to restart it although the stutter was still apparent (also made a single back fir...
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zooankski
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1
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293
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help/advise -problems with bike
(Preview)
Just had the top end of my engine repaired,head ring rebore all of that. I have been told to run the engine in for 500miles ,this is what i have beening doing i have done 175miles no more than 40mph. Bike has been running sweet as a nut for weeks now,i decided to do some green laning which whats great fun,i a...
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david
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6
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367
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yz 125 1LX engine specs
(Preview)
afternoon all, Just bought a yz 125 1LX engine for my dtr :P any one know the engine specs? wiki shows 33bhp but is that for all years from 1974 to 2012? Thanks
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gareth_iowc
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1
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302
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Different barrels and Tops ? difference ?
(
1 2
)
(Preview)
Hey, so i heard that the best setup for the stock barrel is to have a 3bn barrel with a 3mb top. The top 3mb has higher comp right ?. But whats the differences on the barrels ?. Thanks for any answears. Im just curious. And what models of the dts came with what barrels and tops ?
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NorDt
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32
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1172
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WTF IS THIS RATTLE!!!!!
(
1 2 3 4
)
(Preview)
HELLO LADS, So after another engine rebuild, I started my bike up today to hear this annoying rattle/tapping, the cylinder has been rebored, new piston and rings, genuine gaskets, and the oil is flowing through nicely, I have posted a link below of the video so you can all hear whats going on, the bike r...
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PatMan
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102
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2581
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Torque'ing head stud bolts
(Preview)
Hi guys Im going to do my top end this weekend and was looking through the process. Looks like ivs got everything i need. I just have a quick question about the bolts which are used to tighten the barrel down. The studs look pretty long, how do u guys torque them down ? Ive looked at some deep sockets an jm wor...
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St0fxxx
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9
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435
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Dt 125r loosing power???
(Preview)
Been for a good ride green laning today with a mate. And on way home my dt 125r kept loosing power at about 5/6 thousand revs? Anyone know what it could be?
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Karl55
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15
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559
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odd bulking out..
(Preview)
right, so i've got bike running and at first it seems to be running perfect, then it heats up.. and then problems start, i cant get over like 2k revvs else it starts bulking out real bad then pretty much cuts out if i stop and wont start for a while. i've checked pretty much everything and cant seem to figure...
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DTCrazedKid
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8
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362
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Jetting Advice 89 DT125R
(Preview)
Hi guys im planning on fitting some boyesen power reeds and a RAMAIR pod filter at the weekend, Ive already got the full DEP system on it. Was wonder which jet size to go for? im at sea level, was thinking of a 240, 250 & 260 mainjet and 27.5 pilot. Any experts on here willing to share some knowledge? ...
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St0fxxx
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7
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387
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tick over issue
(Preview)
cant seem to stop it, but when i take choke off bike, it dies, anyone know why thats happening?
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DTCrazedKid
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7
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394
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