Yamaha

Hi All, Got a bit of an issue with my TY175 forks (previous owner largely, seems to have been a bit of a butcher) anyway, long story short i've gone through everything and restored the bike, but having issues with the forks topping out. I have rebuilt all and assembled as per the 'fiche but when I try and 'hop' the bike the forks top out completely. What fork oil are people using and how much? Or is there something else that I should be looking out for! Thanks, T

hi guys i have found this bike i know the seat and front mudgaurd are wrong and someones has screwed stunt pegs to it .... but how nmuch do you recon i should offer the guy for it... i wont hold you to it but i know its quite rare now and was the last twin shock yam made... also i guess the parts are like hens teeth sorry i can't get a pic up will send photo if you can get an email address to me cheers jason

Guys, Does anyone know if this rear brake lever is off of another model (factory bend) or is it something anyone can do with a propane torch and a vice? Notice how the pegs are in the rear position and the brake lever is still easily accessable?

Hi Folks! having problems with my 250 majsety after doing a fun trial at earl shilton on sat night one of the sections involved a stretch of water (river!) which was quite deep in places! on the third time round the bike started to splutter and load up! after escaping the exit bank i made it to the van thinking the old girl had gulped a large amount of water (the villiers brigade merrily rode this section with the engines under water! ) anyway i removed the float bowl and removed any traces of water but the bike was still sick ie wouldn't rev properly or cleanly! anyway when i got home i removed the airfilter and checked inside the airfilter box all ok supprisinley d…

any ideas on this?

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Hi, I've been trying for ages to get hold of replacement tank stickers for my 1991 (pre-Pinkie) TY250R mono trials bike (plastic tank). The usual ones just bubble off after a few days with the petrol fumes. I read around the forums and found an article where someone had said they were going to try a company called MXM to make some 'Pinkie' stickers which would work on the plastic tanks. Anyway, I found MXM on the Internet, and I sent Chris there a pair of cheap 'copy' TY250 stickers I had at home as a pattern, and today they have sent me 2 sets of the ones they made for me. I have to say they are superb, really thick and the colour is spot on! If anyone else…

I just installed a new, nylon-lined Venhill clutch cable on my son's 74 TY80. I want to make sure the clutch mechanism itself is properly adjusted before adjusting the cable. There is a small phillips adjuster screw with a locknut under the cap on the left side engine cover. It appears to be for adjusting the clutch push rod/mechanism clearance. Does anyone know the proper "setting" and procedure for this adjustment? Thanks, Matthew

Am i wrong but is a TY250 twin shock tank made of alloy? Im only asking as i have a TY175 with a dented steel tank and i need to get another so IF a TY250 is alloy and IF it fits and IF its lighter then this could be a good idea? Am I wrong? Also, do rock shock rear shocks have a locking ring at the top to stock the adjuster turning in use? mine hasn't? Thanks Owen

Same TY as I had the petcock question. Hasn't been ridden a lot in a few years, but getting it out and going again. I am 6 ft 0 inches, 200 lbs, ride pretty moderate easy stuff. Ride a 200 GG in modern, so I am used to minimal power, but motor is fairly fresh and surprisingly strong. Occasionally ride it, trying to improve it a bit but on a fairly low budget. Has the SM peg kit slightly down and back. -Front forks: I have a set of 250 yokes and forks to RB and install. Have had 10 yrs so not sure of shape. Beyond normal rebuild, what are the mods good for me. Preload spacer, oil viscosity and amount, tubes above top of yoke, possible replacement springs, any ori…

Hi all just about finished my ty 175 rebuild and its looking great just a small problem with the sammy miller footrest kit ,looks great all chromed but when fitted the rest fouls the kick start and i cant see any way round it is this a crap design or am i missing something any advice you could give would be welcome cheers martin

Hi, just purchased a 1975 ty80 as a christmas present for my girlfriends boy and also as a little project for me!!! The bike runs well but there are a few issues and needs some advice 1. the kick start has started to move on the splines of the kick start shaft. It just about grips but can only see it getting worse. How much work is it to change the kick start shaft on the bike? Ive never 'got' into an engine before so complete newby to this. Is it an easy job of just dropping the oil, laying the bike down, taking the case off and replacing the shaft and seals. Or will i have to remove the engine from the bike and completly dismantle the engine? Another option i thought …

I have been building a TY175 from bits and pieces left over from a previous restoration. I have an issue with the clutch. If I assemble with the ball between the clutch rods, there is no free play in the mechanism at all and the outer pressure plate is clearly not seating nicely on the last friction plate, being held off by the mushroom rod. If I remove the ball, there is heaps of free play, even with the eccentric adjuster set to max and the clutch only just disengages and will surely drag. The clutch rod and ball were original Yamaha part No, 1W1-16357-00-00. Rod is 122mm, ball is 4.75mm and mushroom rod is 62.4mm. Am I missing something here? I have a s…

Recently rescued the bike from a carport in Tecate, co worker gave it to me. After a thorough washing discovered a rat had ate the filter and lived in the air box for awhile luckily nothing got past the carb. I believe it's a '93 no vin # on eng jus a mdl # on frame so far the insides look good so still waiting for gaskets and have completely stripped from top to bottom. My local Yamaha dealer had never heard of one so parts from them was a nogo. Does anyone still sell the footrest lowering kits? I've read about them. If anyone has any info I would love the help. Thomas

Hi I have just bought a WES system for my majesty 250, and i am looking for a chrome front pipe to complete the job. Any one here know who sells these? I was told the miller ones fit but surley they would be for a standard yam twinshock, whereas i got a MK2 godden framed bike.. Any help appreciated

hello all, ok; dilema is this. I have a rattly ty ('so do I' you all shout back ;-] ......) basically, when I got the bike, I looked up the exhaust port and saw blow by. Taking the head off confirmed that the cylinder was on maximum rebore. The piston had a jammy bottom ring, so I put in a cheapo piston and new leb. it sounded rattlier than before, and I changed back to the old leb as the new one was faulty. Slight improvement, then a bit more improvement jamming up the fins with rubber, but still rattley. No blow by on new cheapo piston. So, can I assume that bore is ok and that a nice expensive wossner piston and leb will make it a bit better? Or, do i get it lin…

Hi, I just got this TY175 that was given to me. It sat for a couple of years and the last time the previous owner tried to start it, it wouldn't start. He told me there was no spark, and that when he opened the mag cover it was half fll of water. I started diagnosing with the knowledge I have and information found on the internet. First thing I found is that the ingnition coil is dead, open on the primary side, son I bought an aftermarket one. Installed it, cleanet points and set points gap and now I only have weak intermittent spark. I will order new points and condenser, is there anything else I should check?

I had the TY out today riding around the yard and it smokes pretty bad.The more throttle you give it the more it pours out white smoke and it will not clear out.The gas was mixed at 32:1 with a freshly cleaned and oiled filter.It,s only the second time that I,ve had it out since buying it back from a friend,but I know it didn,t smoke like this before. I,m thinking that it could be a primary side crank seal? Could it be worn rings? Too much oil on the filter or the fuel/oil mix?It does sit and idle good and I had no problems riding over logs behind the shed.On the plus side,I think that it killed off most of the mosquitos in the yard.

My 1985 TY250 has always (well for the year that I've had it anyway) been really hard to turn over on the kickstart - and I'm not a little lad either! The mains and conrod were rumbling, so I've stripped and replaced them and the seals etc ........... and now it's even more difficult to turn over! I was turning it over by hand (using the clutch) as it was being assembled - that was until I fitted the head and spark-plug - so it's free enough. If I take the spark-plug out it's OKAY; but put the plug back in and it's like a diesel to crank over. I don't know if it's a TY piston - as it was rebored previous to me buying it - but the piston doesn't foul the head or the s…

Guys I need some help here please. My Yamaha TY250 has the following VIN numbers: Frame VIN: 493-301827 Engine VIN: 493-300961 Someone has kindly already given me their thoughts on the year, however I would prefer more than one opinion just to be on the safe side, as it seems to be a bit of a guessing game. All comments welcome Many thanks