Yamaha Workshop

hi im new to this ive a dt125r year 2000 after winter i tried to start my bike and no joy i checked the plug and it was wet with oil could anyone tell me what has to be done to stop it it starts when i jump it on a hill but dosent kick start or take over right any suggestions it would be great thanks.

I asked on dotheton, but just thought I'd ask here too since Yamaha folks have always been great. My friends '74 cb450 had a variety of issues. I had to clean his carbs as his bike started to run bad, and he let it sit for too long which gunked up carbs. We then put on uni-filters since his stock air filters were breaking up, and we put a higher main jet for that air filter. Bike starts after 5-10 kicks, but stumbles/splutters. Idle mixture doesn't seem to help at all. Bikes symptons are: 1. Backfires occasionally out of right exhaust. Sounds like a gunshot hehe. (read that lean or rich conditions can cause it, but idle mixture seems to be fine). 2. Has a noise …

Hi, can anyone throw any light on a problem I am having with the oil seals on a 535 virago please? I have searched the topic and nothing relevant found. I did the fork seals on the bike 2 years ago, and it was a job to get the oil seals in enough to get the wire retaining clips on, and when I did the dust seals didn't quite sit down right. I've blown a seal again, I ordered some off evilbay, and again it won't go in far enough to get the clip in. In fact I just destroyed one trying. I took it out, got out the vernier and measured up, and it seems this set of seals and the last set I had are too thick by about 2mm. The seals I have are .4" thick, or around 10mm. I have …

Having a bit of concern with fitting after-market headlight/s on my Sachs, thought i would ask and see if any one could help. I wondering if i would have any problems getting an MOT fitting just one headlight were there should be 2 and blanking the other hole up? Any comments or suggestions welcome.

How would a faulty fast idle solenoid cause my YBR 125 to keep cutting out when sat idle? I`m still trying to work out my problem with my YBR 125 before i have to finally take it to the main dealer at £35 an hour and a £60 diagnostics check!!! I think a fault with my fast idle solenoid, or the sensor related to that has caused my bike to keep cutting out. When the engine is cold it starts up fine...... then as soon as it gets warm it custs out and will not start. I`ve checked everything and i think it`s the fast idle solenoid. But as a complete novice, i`m not even that sure of the function of the fast idle solenoid!! My problem can`t be cured by adjusting th…

Hello all, I just picked up a 1982 XJ650 Maxim and I need some recommendations for swapping out the rear shocks. Either mine are shot (likely since I think its the original set) or its just not as still as I'd like. I've got them set on the stiffest possible setting and its not getting the job done. I noticed the XJ750's have a different style rear shock, are these better? or are they even compatible? Any help would be appreciated.

hey guys, I've been trying to diagnose why my DT125 LC Mk3 has suddenly stopped working after it was left for a few months over the winter. The engine doesn't start at all and therefore, as far as a beginner like me understands, it's either a problem with the spark, or with the mix coming into the engine. So, I tried to see if the plug sparked whilst outside of the engine, and as far as I could tell it didn't. After playing around with the multimeter, I decided to replace the ignition coils, and the spark plug. Seemingly, still no spark. At the same time, I'd been advised that maybe the jets in the carb had become blocked, so leaving the electrics for a while, I…

Okay this is what happened : I rode the bike, then I got home and it started raining, I did not cover the bike (bad choice i know) it rained for 3 days straight, then it stopped and I said i'll go ride! I turn on the bike turn on the choke so that the engine can heat up before I leave with the bike, everything starts normally, bike has high RPM to heat up the engine, then all of a sudden the bike lowers the RPM slowly and then it turns off, then I try to start up again and the bike tries to start but it wont start. so far this is what I have tried : 1 - Changed all 4 CR8E NGKR Spark plugs (4 new ones installed) STILL DOESNT WORK. 29.00$ 2 - Checke…

Ok as some of you may know i was messing about with a motor a few days ago. Well the motor was from a very rusty Powervalve Servo from a sachs xtc 125 ( Yam DTR engined). I thought i would post my findings in case it helps someone else out. Ok so it started when i realized the Servo wasn't turning at all while the bike was running. Upon investigation i found it to be rusty and seized solid. It was raining out so i thought i would entertain myself and try and fix it. Pulled the motor out, opened it up and coated it with WD40 in hope that would loosen it up. Well it did, but not all of it, so as I forced the motor round to free it up it went with…

Hi, new to forum, and as i have a yamaha i thought i would give it a go. I have owned many bikes in the past, mostly yamaha's, but now me and the missus are starting a family, and i was not allowed to get another big bike but she gave in and let me have a scooter (cheap, less chance of me killing myself, etc etc). I finally found a nice clean tidy example Majesty 250 S reg for £700, goes like stink (not like my R1 used to) and she likes going on the back for a change!! Ok, finally down to my question. I am a bit of a gadget freak and a letter dropped on my door step from the old bill, stating that a lot of scooters below 400cc are high risk items being stolen on our e…

Hey all, basically ive got a DTR125 02. the bikes had all the lighting ignition barrel speedo etc stripped off it all it has is a killswitch. im basically looking for ways to improve the acceleration and performance but im not worried about top speed as im using it for enduro/hare'n'hounds so im not likely to get the bike above 60 mph can anyone suggest ways and methods to help me out? ive heard about changing the sprockets to a different tooth setting any thoughts? cheers Conner

i not sure how to fit a beowulf can to my bike because off the exup on the standard one been told to disconnect the pipes at either end can sumone help with this problem please

Hello just got a Yamaha sr 125 i think 1995 very noisey and top speed of 50 miles per h is that the normal top speed??? adjusted the valve clearances and cam chain and the sound its much better, i dont know how much does the chain tentioner need to be adjusted does it have a torke setting or a meassure on the cam chain??? regards juan

when doing a valve clearance on my yam sr 125 i done as the manual said and lined the [T] mark on the rotor rim to the arrow on the crankcase. the valves were closed tight so set them to the manual setting.started it up and they rattled like fu k.tried again,this time testing piston was at tdc by putting a plastic tie in the spark plug hole.now a mark on the cam chain sprocket seemed to line up with another but the [T] mark was way off.valves were way too lose so set them again this time its ok.is my timing off.the bike is back to the same as it was[dies if you give it throttle].

Hi, Just brought a Yam xs250 1980 "W" reg. I'm try to find the best Electronic Ign conversion but having prob's tracking down a dealer who can supply in the UK, can any one point me in the right direction and any prob's I should look out for. The bike is a right basket case but only need it as a doner. I'm also looking for a few parts. Front calliper, Engine mounts and bolts and rear wheel spacers for a drum brake, can anyone help on these parts. Cheers Colin

Is there anyone with info on checking my TDM Valve timing? The Manual I have (http://dl.dropbox.com/u/6248918/service_tdm_96.pdf) does not cover this.

Last week, I got myself a 92 600 Diversion which starts no problem and has plenty of power. The problem is, when its idling, it backfires every few seconds. Also, when I rev it beyond 5k, it belches black smoke out. I took the plugs out and they are black and sooty which to me says way too rich. The haynes manual however states that you cannot alter the mixture screws. as they are set at the factory. Any suggestions would be greatly appreciated.

Hi, just joined, bought my daughter a wee 50CC Aerox YQ50 and looking for owners manual and service manual. There is a topic on forum but link to files do not work. If anyone can help I would appreciate it

alright lads just gona practice a little more as my theory is in 2 hrs just thought i would have a brake and let use no iam hoping a pass it as i realy want this like wen u wanted ure car licence its a night mare any tips on doing module 1 if i pass ill let u no wen i can but i dont want to dry my self out if i fail as i wanted this for a couple ov years now just never had cash or balls as a no wat am like wen a put the helmet on well take care lads and al get back to use later hope fully with good news

I posted this same question initially in the wrong forum (it's an age thing) so here it is again and hopefully in the correct forum:- My XV110 has no oil pump chain tensioner and the chain seems quite slack. Haynes Manual says there is a tensionsioner which is part the chain cover but I've heard elsewhere the later models (mine is 1986) do not have a tensioner. Shall be grateful if anyone can say for sure whether my engine should have a chain tensioner or not.