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Bike Running Hot After Full Rebuild
(Preview)
I took my bike out for a gentle run after work as the engines just been fully rebuilt and I wanted to to start running it in but I only done 2 miles when I noticed the temp guage was three quarters of the way up so I returned home. I was wondering if this is normal when you first start running an engine as I have on...
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gooner78
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23
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305
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Well pissed off! Any input help!!!
(Preview)
hi guys the other day my bike was reving to max revs on startup, first thing i thought was airleak, checked the manifold, huge tear! bought a new manifold installed it properly with gasket maker/sealent and went to start it and the same bloody thing is happening! i sprayed wd40 everywhere manifold, p...
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benjarminx
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8
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247
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cylinder head cracked?
(Preview)
anyone experience this? had tiny very tiny water leak ontop of head- thought it was a leak or gasket had gone. on closer inspection there were tiny droplets leaking from where the 3bn stamp was? took the head off and confirmed a half inch crack along bottom of writing?? anyone experienced this? not sur...
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dread123
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0
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133
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leaking water
(Preview)
my dt125 is leaking water from sparkplug not much tho not loosing power or awt and on hi revs sounds like its chokeing then afta a few mins its ok i can nail it
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wheelie boy
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9
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267
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Bike Revving up full throttle on it's own after rebuild. ( videos inside )
(Preview)
My pain continues guys, hopefully you can get some sort of idea whats wrong from the videos. Is it an airleak? Or is it the engine drawing in all the petrol it can for some reason. Thanks in advance guys, good to be back btw, missed the forum just been so busy and the bike just did my DT morale in with the hea...
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slob
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23
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745
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Losing power
(Preview)
So, just replaced my water pump oil seal and oil pump oil seal due to finding oil in my coolant. Also seem to have another problem, the bike isn't smoking very much and after taking it for a 3/4 mile test ride, smoked white quite a bit. could this be steam? The bike also won't rev cleanly through the rev rang...
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Jesse_DT
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18
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305
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Expansion bottle
(Preview)
would removing the water expansion tank off effect the cooling system ?
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Dt Danny
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7
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183
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Weird liquid problem after top-end rebuild
(Preview)
Hello, So I did my top-end rebuild with Athena 170cc kit. All gaskets new etc... Today I ran it and it started leaking somekind of iron-coloured fuel-like-smelling liquid from exhaust from the cylinder. Also the spark plug was covered with it. I was wondering if it could be some coolant that went into...
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otty
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15
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254
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Yup so the cylinder and piston are screwed
(Preview)
So now it bogged for real... need a full topend rebuild, yay It's good because I dont have any summerjob, so now I can waste time on the DT :) bad thing is, now it's gonna cost -.- my guess why it bogged is either because I recently started using another 2t oil and didn't drain the oil system OR it is cause it he...
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zander
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8
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200
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Is this fooked or not fooked
(Preview)
i did the head gasket in college and this one is the one that came off only 3 months old i think and its anthena -- Edited by Danny0112 on Tuesday 21st of May 2013 03:22:50 PM
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Dt Danny
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6
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173
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Bogged from heat, should I worry?
(Preview)
So I changed the cylinder head gasket at my brother buut, I were too lazy to fill up the cooler, because I thought I've been running without water in the cooler all the time for the past half year since the gasket was leaking... without problem... anyways, so the heat lamp started glowing and it used to do...
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zander
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8
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199
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Skimming the cylinder head
(Preview)
I think my top end gasket is broke since my coolant level always drops, and if I dont fill it up, it overheats quite easy... soo, I ordered home a new top end gasket, but it's been like this since I changed the gasket and I've been to lazy to do smthing about it... until I read about someone else with this prob...
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zander
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13
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249
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looks like i need a new head gasket
(Preview)
well my dt has been slowly loosing coolent so i took it into the workshop in college and put a pressure tester on the cooling system and then i started my engine and the pressure slowly went up :/ but this time im doing it in college with the tutors to help me so i shouldnt get it wrong
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Dt Danny
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10
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256
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bike wont run without choke on when off it revs to 4k and then dies clarification on screws please!
(Preview)
as above the engine is freshly rebuilt and im running pre mix just cant work this one out as it was running fine (yesterday my first outing) then aroun5 5 yesterday it started playing up and now just will not idle off choke if i throttle it its fine but im having to wrestle with it gotta make mayday run any he...
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stillbroke
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16
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225
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Scratches on psiton skirt + blow-by?
(Preview)
Hey there, I have just recently removed my barrel and head to replace the base gasket on my 2003 dtr. The cylinder and piston etc are from the athena 170 kit. On inspection i have noticed the piston has some small scratches on the reed valve side. It appears that the reed valve petals or block have been s...
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Rastazak
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9
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184
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DT won't go past 40MPH. :-(
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1 2 3 4 5 … 9
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(Preview)
Hi all. I have a 1997 DT, today is my 17th birthday so I've only just got it road legal. Took it out thinking it'd be quicker than my ped, and it won't go past 40. And it won't rev past 6-7K RPMs. I've looked at the powervalve, its open fully and working. It's got a full DEP exhaust, and still a rev limiter. But i...
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Boxing
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256
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2934
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Scratches on piston skirt + possible blow by?
(Preview)
Can a mod delete this please? it wont seem to let me do it. An updated version of this thread has been re-posted with pics. Thanks -- Edited by Rastazak on Tuesday 23rd of April 2013 09:49:39 AM
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Rastazak
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2
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147
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other temerature senders that will fit the dt
(Preview)
really need a temp sensor urgently but cant be paying the price asked for them any ideas if there is another that will fit ?
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stillbroke
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2
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149
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Bike won't start getting no fuel.
(Preview)
As in the title guys, it is cyclying nicely and sparking but it won't start. I took the spark plug out and it was dry as a bone so obviously no fuel is getting in somehow, any ideas?
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slob
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17
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222
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THOUGHTS ON ENGINE SOUND
(Preview)
Whats your thoughts on the sound of the engine its the TZR by the way lol ... bear in mind no power valve fitted and after marked k/n style air filter
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MDK
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2
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226
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guidance needed of you kind fellows
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1 2 3 4 5 … 9
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(Preview)
Right here is my situation if you havent read my last topic, my bike blew up and ive took it apart and found fragments of the piston in the crank case when i came to clean the fragments out, the crank out before it was stuck maybe because it was left over night with no head on ? or something else serious. so im s...
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Dt Danny
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255
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2920
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could my powervalve being flush with the exhaust port be causing so many rebuilds ?
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1 2
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(Preview)
as above this is the 3rd top end build im having to do getting really pissed off with it now .i dont know if having the powervalve flush with the port could be causing the pistons to keep mashing up what could be the problem
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stillbroke
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54
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636
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Thermostat problems
(Preview)
So, on both my bikes now the thermostat has failed and caused the bike to run unusually hot. The pin that guides the inside comes out and gets stuck so the thermosat either cant open or gets jammed. It's pissing me off. I've just had the rebuild done and put in the bike but didn't wanna run it without a therm...
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CarlosRexx
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3
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180
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Overheating? is this right?
(Preview)
hey, my bike overheated today and cut out on me, it didnt seize luckily. what is the correct amount of water to put into the radiator and how do i go about it? is it right to fill it ALL the way to the top? as i filled it all the way to the top when it overheated, this is the first time i changed the fluid in the b...
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tunertom
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20
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296
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Dt125 power valve Compatibility?
(Preview)
Hi guys i bought a project dt and it had a few parts missing tomorow im going to see/buy a 1992 dt125 i was wondering would the 1992 powervalve be compatable with a 52 dt125? also i know its kinda of the wrong section but also would the 92 carb be fine on the 52 dt125? regards ben
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benjarminx
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1
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134
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