EACRUISER

The Engine No is 5E9-000815 so any ideas on the Model Code anyone. XS 250 Model RH Year 1981 Engine Code 5E9 Found it on this site, http://www.dropbears.com/m/models/yamaha/modelcodes.htm Thanks for your help Drewpy

I need help in diagnosing what model bike my XS250 is 1981 XS250 but i don't know if it is an RK or if it is a different model. From what i can see RK's have square headlights, my bike doesn't. RK's have a sort of tail on the back of the seat, Cafe Racer look, my bike has that but has a round headlight. Just need to work out as the mechanic is saying if my bike is an RK the pistons are no longer available. Engine has died and need to rebuild it. ""I am sure you are all saying why, well South Australia has these stupid LAMS rules that don't let you ride a bike bigger then 660cc and with a power to weight ratio higher that 150kw per tonne. Now this rules out any sportbikes that fit my overlysized body without making them look like pocketbikes."" So if anyone can give me a list of the various model codes, where to look for the numbers that tell me what it is, it would be greatly appreciated.

Yeah i meant Spark Plug Leads. I had the oil changed the same time the tires were replaced. But i still don't trust the Mechanic got even that right so i might take out the oil he put in there and replace it with some good stuff.

Thanks Drew and Yamahead, Your help is appreciated. I will have a go tonight. I am trying to fix it up before i start doing some serious riding to practice before i take my advanced riders test. I still have a few months before i need to take the test, while i am on my L-Plates. I have been riding it around like that for a few months now and the noises have only started in the last 3 weeks or so. The spark plugs need to be changed as the outer coating is cracked and if i don't pull the leads away from the head once in a while, while out riding i loose power and the bike rolls to a stop. I beleive its the leads earthing on the head which is causing this, so that is why i need to replace them. I can only hope that the leads are not glued into the coil. Also, do you know why occasionally the kick start doesn't mesh on my bike. There have been occasions where i left the headlight on without realising it and i couldn't kickstart the bike because it just wouldn't mesh. I tried leaning the bike to the side, put it in gear and moved it forward a bit then out of gear and tried again, still nothing. ANY IDEAS???? I also don't trust any of the motorbike mechanics in my area in the North of South Australia. As i took my bike to the only one around to get the tyres changed and the rear wheel wasn't tracking right after that. My Auntie (A Yamaha Freak) came for a 3hour bike ride to help me re-align the wheel and it's a bit far to keep getting her to ride up and help me with what she calls the slug. I will probably keep this bike for a while after i am off my L's then upgrade to a larger bike that is more suited to my size. (I am 6'4" and 93kgs) so it is sort of working the poor little thing. and i make the bike look like a PW50 because of how big i am. But that is one of the biggest bikes the law states i can ride down here, so i will keep riding it until i get off my L's.

inlet 00.8 - 0.12 mm exhaust 0.16 - 0.20 mm Thankyou Drew. I will check them tonight. Also, to change the Spark Plug Leads do i need to take the tank off. --> also if i need to take the tank off, where are the bolts for the tank. I found the one under the front of the seat, but i cant find anymore and the tank doesn't want to budge.

Can anyone tell me the Valve clearances for a 1981 xs 250. I am new to the bike scene (L-plater) and the XS250 i bought is making a bit of noise from the valves. Just wanting to make sure they are where they are supposed to be. Most of the noise is coming from the Exhaust side of the head.

Double Post Sorry