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running pre mix
(Preview)
A failed oil pump on my other bike has just cost me £350 in repairs incuding new main bearings a crank rebuild and a new piston and seals and gaskets so i will be running pre mix from now on. Do i just disconnect the cable that goes to the oil pump and then run the pre mix or does the oil pump have to come out. I hav...
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gooner78
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24
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429
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Rebore question
(Preview)
Bought this off ebay, someone has done a right job xD Its 56.4mm(i think) 3mb00 y-1 barrel Is it ok to just rebore and slap on mine? How big a rebore would i want to go? the groves are pretty deep and mine is a 56mm so will this even fit? p.s do i need to remove the exhaust and head studs? [URL=http://s326.p...
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Victor
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5
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233
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Nikasil plated standard barrel ?
(Preview)
Ok im just having a little argument on another forum. Is the standard barrels nikasil plated ? Cause everyone is saying you cant rebore a DT125 cyllinder becuase its nikasil plated. But on this forum everyone is reboring their barrels, And i rebored my dt barrel plenty of times !
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NorDt
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14
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236
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Looks like I'm gonna need all new studs, anyone help quick?
(Preview)
Well looks like all my parts which were meant to be coming home have been 'lost' in the post FFS.... numberplate, bracket, oils and majority of my engine studs, dowels/pins and all nuts and washers to go with it which connects everything on the top end.I'm livid.....but anyhow... Looks like I'm gonna...
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Reef
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14
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221
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head gasket
(Preview)
hi peeps just woundering why my head gasket keeps going im using geniuine gaskets but every couple of month they keep going water keeps peeing out of the water overflow and I also dec the head every time
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superted
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8
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250
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will a g reg dt 125r head and barrely fit my 03 ?>
(Preview)
as above i can get this for £45 so i need to act fast on it will it fit ?
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stillbroke
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25
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291
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4DL cylinder
(Preview)
Right, found a 4dl cylinder with a 3mb head (mine's the 3bn with the weird squish). So that should bolt straight on right? Also anyone konw what piston would I need, all I could find on PJME was a flat top for a 4FU but does the 4DL run a domed piston normally, especially with the 3MB head? Cheers
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Cameron
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13
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331
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O ring
(Preview)
I thought I was gona get these O rings for about 50p turns out 5 quid each any 1 got sum were to get cheaper in future don't mind paying 6 for the oil seal -- Edited by...
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ezegreenfingers
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2
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210
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Water leak from pipe union, How would this be sorted?
(Preview)
Well hello everyone! i was riding out today and notice i have a leak from union pipe :[ is this hard to repair as i got mod one to get to soon. all answers welcome many thanks
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Grantypanty
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5
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192
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Anyone Able to shed some light on this mysterious barrel?
(Preview)
Appears to have no other side to the Powervalve?
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AndyYam
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7
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295
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major problem after top end rebuild had enough now :(
(
1 2
)
(Preview)
so i finnaly got the bike going did the top end bought her a load of shiny bits etc then started her today and she idled out of control thats no 1 so i drove her down the road in the hope that it myt be a blockage got half a mile and the back wheel locked up so it seized for a minute i then started the bike again go fur...
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stillbroke
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48
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685
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Cylinder head repairs
(Preview)
So i was just wondering if anyone knows of a way to repair damage to the combustion area of a cylinder head. I have a head that has huge chips from piston rings flying around in there.
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AndyYam
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1
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209
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just got my genuine gaskets shocked!
(Preview)
astonished between the genuine gaskets and the cheapo one ! especially the bottom gasket its thicker and 10x more ridgid that the cheapo 1 must be metal 1 well happy
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stillbroke
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7
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241
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MicroFiche
(Preview)
Hi - does anyone have access to a microfiche parts break down? I am after the yamaha part numbers for the following parts: PowerValve pulley housing and cap Powervalve pulley Powervalve cables Not too sure if a model year is required for that or if the parts are the same over all years.. It is to go on an en...
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swallow
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2
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196
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4fu any better than 3mb 3bn
(Preview)
As title says whata the difference between standard 3mb/3bn top end an 4fu nikosill is there much difference in performance? Got chance of a cheap 4fu top end in decent condition but as far as i believe nikkosill barrells cant be rebored have to be resleaved which is expensive compared to £30 for a rebo...
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pbird220680
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2
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219
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3bn heads- whats the difference?
(Preview)
one head says y1 the other is y2? take it they are interchangeble?
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dread123
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5
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208
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Will a 2rh00 fit on a 3nb00 engine
(Preview)
Basically, my mate was looking for a replacement top end for his 96 dt and came across this on eBay, full topend for a bargain
It's the octagon shape not round
And he's worried it's not gonna work
Anyone care to shed some light on it
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DTRJoeW
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5
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242
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bit of advice pls
(Preview)
well after some thieving sod pinched my other dtr project i bought for me and my little boy to work on i managed to find a replacement on ebay at what i think is cheap enough £300 all things considered but need a bit of advice, its probabally been covered somewhere before but hopefully someone can point me...
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pbird220680
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2
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174
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Barrel resleeving
(Preview)
How much do you recon it would cost to get a barrell replated and rebored from pjme? thinking about getting a barrell second hand payin for it to get done whilst i use the current barrel for getting out and about, then getting a brand new pistion so i have a fresh top end
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Firthy
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14
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257
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what is the standard size bore on a 3mb00 cylinder
(Preview)
hi i have to replace my piston and want to know the standard size of this cylinder as i had it rebored. the piston the company supplied has this written on top "0.50" does this mean that its 0.50 above standard?. ive looked through yambits and theres so many i dont want to mess it up il post a link...
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stillbroke
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2
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157
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top end rebuild and should I get the barrel bored?
(Preview)
alright lads not been on here for awhile it's changed so much and lots of new faces iv still got the dt :) she's still going strong not had any problems with her really fingers crossed. right here goes Shes a dt sm when I brought her it had 6000 miles now I'm at 13000 so I'm looking to do a top end rebuild she's s...
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biggie90
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19
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277
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Resleeved barrel problem?
(Preview)
Ok i know this isnt DT related but i need help. Had PJME resleeve a cr80 barrel after they told me the exhaust bridge was cracked when it got rebored, so paid the £135 for that. Fitted the barrel and piston thinking all would be fine, as i sent a piston to them so it could be bored out to the right size and toler...
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eG x LoGiKzZ
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1
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178
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Head studs, are they standard?
(Preview)
Morning Chaps fitting a new cylinder and head this weekend and wanted to get some new head stds and nuts. Seen them on AJ Sutton for an extortionate price. Just wanted to get the nod from the people in know if they are like a standard size and whether i can get them cheaper else where. cheers fellas
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St0fxxx
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4
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180
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So what do you think?
(Preview)
Brand new top end rebuild, oversized piston + skimmed head a barrel, not a cheap job at all. Obviously cheap head gasket isn't doing it any favours but would that be the cause? possibly incorrect fitting? Bike hasn't even covered 1 mile just overheated as soon as it was put back together. I've now been...
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Harry
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22
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257
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1 damn stud
(Preview)
Getting the second engine ready for a re bore but have a single stud i cannot shift!, tried two nuts together on the stud with a good dose of wd40 (my normal method) and they are actually starting to strip it!. Maybe PJME would be the best bet here unless there is another secret trick i don't know about to...
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zooankski
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7
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232
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