Dual Sport, Offroad Bikes

hi.. does anyone know were i can buy a new fresco or dep tail pipe for my dt250mx..also does anyone know if there is an aftermarket expansion chamber available for the same model thanks sean

Hi Just prurchased a lovely DT 250 MX 1980. I am not sure what is the best :- 2 stroke - Semi or Full Engine oil Any pointers would be appreciated. Thanks Steve DT250 Newby

Hello all, I just joined seeking help with a little project I'm getting myself into. See, I just bought a little motorcycle called a Sachs MadAss. It came with a broken 50cc engine and my plan is to swap something different into it. They come with a Chinese copy of the old Honda "monkey bike" engine, sometimes called the CRF50, in either 50 or 125cc. There are a number of hot engines available from various Chinese engine suppliers ranging from 140cc to 160cc. But I'm not interested in a cheap little Chinese engine. I've always wanted a two-stroke motorcycle and this bike is just so small and light it would be like a dirt bike for the street. With the engine bu…

i just got this bike for 400 and i am looking to have some fun here are the parts i have on order 1 flasher 2 78 YAMAHA DT125 DT 125 175 DT175 HEADLIGHT EAR BRACKETS 3 NOS Yamaha Delivery Pipe Connector 79-81 MX175 DT175 4 Yamaha Pan Head Screw Lot of 17 Part# 98586-05016 5 1978 YAMAHA DT125, OIL PUMP, AT1 6 Yamaha DT175 DT 175 carb carburetor throttle cable 7 YAMAHA DT175 XT125 BRAKE LEVER AND PURCH GENUINE OEM 8 1978 yamaha dt175 dt 175 enduro y28 rear fender suport 9 Yamaha DT175 DT125 FRONT BRAKE STOP SWITCH DT 175 QS1M1 10 YAMAHA DT100 DT125 DT175 HEAD LAMP UNIT & CASE 11 Yamaha DT175 DT 175 Enduro #1010 Two Stroke Oil Tank 12 Y…

Hi guys, I was wondering if someone could tell me what the symptoms of a slipping clutch are and how to adjust it? I took my bike for a short, 3 mile ride yesterday and it seemed to be working fine, but when I fired it up today, it had some difficulty idleing in gear and was very unresponsive - almost as if it wasn't getting enough gas. Is this a clutch or carb issue? What are some steps to correct it? Thanks!

i've got a spare lc MK 3 barrel and cylinder head for sale, it's the round type with the powervalve, just needs a rebore as it has light marks. the powervalve alone sells at quite abit on ebay so make me an offer for the lot, or even just the bits you want also i'm going to have 2 spare complete bottom ends, from the crank to the front sprocket for a MK1 and 2 Lc 125 so if anyone wants any bits off these make me an offer, hopefully this helps someone in my situation without them having to buy 2 whole engines just to get one part from it. cheers, Lee edit...sorry i am new to this forum and believe i may have posted this in the wrong section, didnt see there was a f…

Just thought id mention it on here. I bought off ebay a parts catalogue for my 1986 dt125 (mk3) on microfiche. Im 19 so when it turned up i was confused as i was expecting a tiny sardine to jump out and tell me all the product numbers! (Sorry) Anyway, i took it down to the library (its like the internet, but more papery!) and they charged me about 20 quid to get in printed onto A4 paper. So at somepoint i think ill scan it into the computer and make a pdf file out of it. In the meantime if anyone needs any pages, let me know as id be more than happy to scan it in and either upload onto here or email it to you. Has been very useful for me in working out the different bits …

When I tell people I ride an AT1, many respond with "I remember those! I learned to ride on one!" Seems everyone had one, and everyone liked them. Did any of you fellow Yamaha die-hards have one? What did you think? Maybe you have a funny story, or a good (or bad) memory associated with it - either way, I'd like to hear it. Thanks! Nacho

Hi, i have a DT 125 lc MK 2 or 3 (can't figure out which) with a YPVS engine and powervalve that is not functioning as it doesn't have the servo motor. i've been searching for ages for info on this for this bike and all i get is bombarded with info about the DTR which has a completely different engine and the power valve on the opposite side. i have searched ebay for a couple of weeks for one for a DT 125 lc and for RD 125 lc as i believe these have the same engine but cannot find one at all. are there any other ones that will work? like maybe off a bigger bike. its the 34x engine and it has the powervalve on the right hand side with 2 bolts to mount it to completely…

I have a 2008 XT 250 ridden mostly on the street and would like to install a headlight modulator. Has anyone an electrical diagram they would share? Thanks, Motobobalooie

hello, i kno there is allready a huge thread on how to de-restrict a dt125r. but ive allways had this on my mind about the ypvs on my motorbike. basically when my powervalve was supposedly working ages ago it had no differnece in bottom end power than it did when the valve was jammed closed and dis-connected. and while it was supposedly working it would only top out at around 65mph in 5th, and 6th gear had no power what so ever. while when the valve was jammed closed it would go off the clock. and ive never figured out why it has been like this because it span in the same directions as the videos posted on youtube ect. the bike model is 2001, and im 99% sure that …

I'm renovating a DT125R and had to replace the rear wheel. Now I have done that I CANNOT GET ANY PRESSURE FROM THE REAR BRAKE AND THE BRAKE DOES NOT OPERATE. The rear brake caliper is fixed to the wheel spindle, so when I removed the wheel I (probably incorrectly), I disconnected the rear brake cable from the caliper so that the caliper could be removed connected to the wheel spindle. I have now read that I have made some errors in the way I removed the wheel and in particular the rear brake caliper. The rear brake cable that I disconnected from the caliper has obviously leaked some brake fluid whilst the wheel was replaced. Now I have replaced the wheel/caliper…

Hey guys i have a 1998 WR400f street legal bike. My kids dumped water in my tank. I didnt know until after i tried to start it and wouldnt start one day. So here i am now, where do i go from here. I am pretty good with a wrench just need to know where to start. Bike doesnt run now. Can i easily check if motor is junk by doing a compression text? Any help will be great thanks

Hello ladies and gents, i baught a dt 125 re 2007 3 days ago, paid £1500 it has 9k miles and looked like a bargin, i came home went on a ride to hear a strange knocking, also to notice the breaks sticking, anyways i was stressy and listed the bike to sell as i have no patience to fix or spend money i dont have on a bike, so 3 hours ago people came to view the bike, he said he was a bike mechaninc, he said the top end bearings are gone and that the powervalve or somthing isnt connected or giving me power, im more than confused about whats going on and i dont want to end up pumping cash into this bike, also i no shops will charge me a easy £100+ just to look and maybe fix t…

can anyone here help out with a supplier or part number for my speedo drive on a '92 tenere 3ye? its a little washer type thing that fits in the front wheel! thanks much adrian

Anybody got any thoughts on wheel replacements for the TDR, bike is a keeper but as a maried slave to the system with 2.4 sprogs, morgage etc etc etc lashing out hundreds of pennies for some fancy stuff is a a stretch. Anybody got some realistic soloutions, am i right in thinking that one busted spoke may well be the beginning of the end for the rest of em? Cheers all. Edit:- been looking at central wheel. Rebuild my wheels with stainless spokes for about 80 quid a wheel? Opinions...?

ay up all,newbie here, just bought myself a 1993 ttr 250 but the previous owner has removed the headlight and light switch from the bike and it currently runs on a daylight mot, i was wondering how difficult it would be to sort the lights out to get a proper mot on it, if i can't get a yamaha front light is there anything else i could fit on instead? thanks for any advice steelprunes

hi, i have a 1986 dt 200 that i purchased during the winter. found it on kijiji. drove 200 miles to get it. problem is, 1- the bike never actually ran, although it sounded like it wanted to go, it just sounded flooded to me, there was frsh snow on the ground so we couldn't try to bump start and 2, while the giant of a man that was selling it and kicking the bike over to start it , the bikes kick start stopped returning to the top. he phoned the bike shop on both 2 circumstances and for #1 problem he thought it was the needle and seat, as i did too. and 2nd they felt it was just a rewind spring and it sounded reasonable to me aswell. he gave me a hundred bucks off on each …

any one have a dt175e 1978 enduro do you know where to mount the voltage regulator the rectifier goes under the gas tank but i have not figured out where to mount the voltage regulator so can anyone help me out? the yellow wire is the regulator connector i just cant locate where to attach the reculator

Hi I have just acquired a Tdr 125 in need of some tlc I assume it's an import as it's on a k reg but first registered in 2002. Right here goes hope someone can help. Cos sourcing manuals is pretty impossible. I have power to coil instruments but bike won't start it is electric start only no kick. I think at some point someone has cut the indicators off as I have re wired them but they don't work my main aim is to source some parts and get her bk on the road if anyone can point me in the right direction it will be drinks all round. Cheers Craig