kobascle

Stop screwin around. Put lights on a YZ250. Its an easy mod and youll have everything you want...

Sounds like you need new piston rings

I refurb a DT 400 and got most of the parts I needed here. http://www.brenhamyamaha.com

Going 2-3 teeth larger in the front or smaller in the rear should gain you about a 5 mph increase in top end speed. Hope this helps.

You can find all the info you need at this website. [url="http://www.powerpartsplus.com/pages/parts/viewbybrand/default.aspx"]

I have doubled the spacer length on several bikes and found that it reduces the travel by about half. Simply use a piece of pvc pipe double the stock spacer length

I had onr of these 250`s. Mine was orange and white though. This one looks like it has been painted 400 colors. Anyway. If your not wottied about torque? Change the rear sprocket out to one that is three teeth smaller and you`ll be able to cruise 65 to 70 mph all day long. I used to commute 40 miles one way to work and rode my 250 at highway speeds 65 to 70 mph without a problem

Try running it on premixed fuel and see what happens. You may need a new set of rings. I don`t believe there is any adjustment at the pump. I got alot of usefull info from this site when I was rebuilding my DT 400. I hope this helps. http://www.powerpartsplus.com

If i remember right. All thats needed for this job is a phillips or flat screwdriver and a feeler guage set. Have your new parts before you start the job and just remove old parts and replace with new parts as you go. It`s really a pretty easy job.

You can buy the part you need from this dealers website for around ten dollars http://www.powerpartsplus.com/pages/parts/...d/2/Yamaha.aspx Order the one for a 1976 250. I already checked and they are the same. I used this shop alot. They carry a great amount of new old stock for the DT`s

Chain is to tight when your on the bike

Sounds like it`s seizing. Try increasing your 2 stroke oil ratio. Also if it has an oil injection pump it could need to bled

This site has alot of info and they carry alot of old new stock DT Parts. See wiring diagrams, part placemsnt photos etc, etc, etc. This site was alot help when I was refurbishing my 1975 DT 400C Good luck. http://www.powerpartsplus.com Visit this Website

EBAY

Get it bored out two sizes over and put in a new piston and rings

BUY A MANUEL FROM HERE IT SOLVED ALL OF MY PROBLEMS. IT INCLUDES A COLORED WIRING DIAGRAM IT HAS EVERYTHING.. www.faxonautolit.com

Torch/cut the head of the bolt off. Remove the shock. You should now have more to work with. If you still can`t twist it out? Cut it off. Re drill and tap the hole. Ya I know. It`s alot of work. But ya gotta do what ya gotta do.

If your not worried about lights a points CDI is pretty easy to hook up. These are more readily available. I had the same problem with a DT400.

Pull the engine case off and use a wheel puller to remove the flywheel. This will give you access to the CDI Unit

There should be an ID plate on the neck of the frame or some numbers stamped there. May have been painted over so look closely

Here ya go m8 http://shop.ebay.com/items/_W0QQ_dmptZMoto...t&_osacat=0

You should be able to pull one up here. [url=""]Visit?do=embed' frameborder='0' data-embedContent> this Website[/url=

Sounds like it is siezed. Don`t try kicking it over any more. It will only get worse. You might try pulling the sparkplug and dumping in some Marvel Mystery Oil, let it sit a couple of days and see if that will free it up. If not you`ll have to take it apart and replace the piston and rings. Don`t worry. If you can turn a wrench? You can replace a piston.

You might try leaning out your carb a quarter turn and running a hotter spark plug

I would just replace both