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1972 Yahama Enduro Questions
Posted July 05, 2006 - 06:53 AM
My brother and I went to our mom's house this weekend and decided to roll out his old 1972 Yahama Enduro motorcycle. It hadn't been started in at least 10 years. Fortunately the gas tank had been drained so the carb we pretty clean. Anyway, with a carb cleaning, fresh gas, new spark plug and new oil, it actually started up after 20 cranks or so. So now the questions. We drained the oil out of the two drain plugs, but noticed that there is a resovoir below the seat on the left side with a view window. That did not drain, so does anyone know what that oil is for and how do you drain it? Next the foam part of the airfilter disintegrated, so I would need a new one of those, plus it burned oil pretty bad so I need a new top end, any ideas where I could get a new air filter and/or top end? Any help is appreciated.
Posted July 05, 2006 - 08:39 AM
Posted July 05, 2006 - 08:53 AM
Posted July 05, 2006 - 02:34 PM
Posted July 05, 2006 - 03:02 PM
Posted July 05, 2006 - 05:50 PM
Posted July 06, 2006 - 08:40 AM
Posted July 06, 2006 - 02:35 PM
One thing I would change without question on a bike that has been sitting for so long are the crank seals.
Very, very good piont! There is nothing that will lock up a two stroke piston faster then sucking air threw a cracked main bearing seal.
Well, maybe running it without oil would be faster
Posted July 07, 2006 - 06:46 AM
Posted July 07, 2006 - 09:40 AM
If you are sure of the year, the bike is a DT2 enduro, it is first year of the second generation of the Yamaha enduro's. It was the first model year with reed valve or "seven-port" induction. You've got a great little vintage dual purpose bike there. Parts are more available than you might think. Check out the links on the AHRMA website for specialists in old Yamaha parts. If your local yamaha dealer has been around for several years he should still have the micro fiche parts lists and it is surprising how many things are still available from Yamaha. One thing I would change without question on a bike that has been sitting for so long are the crank seals. Maintainig a good seal of the crankcase is essential to the health of the engine. If you plan to ride the bike strictly off road, I'd also consider removing the oil injection and runnig pre-mix fuel. Good luck with the bike, I'll check back if you have any questions you want to post, I've got alot of experience with those old Yamaha singles. One place you might find helpful for parts is a place called "Enduro Classics" in Culpepper Virginia. That's all the info I have at this time.
If I'm not sure of the year, is there anything on the bike that would determine whether or not it is a DT2 or a DT250? I have seen a picture of a 73 DT250 and it look exactly like it, except mine is orange. Does it really matter parts wise whether or not it is a DT2 or DT250?
Posted July 07, 2006 - 09:58 AM
Posted July 07, 2006 - 10:16 AM
the first three numbers of the vin should tell you exactly what it is. post them here or you can do a search on the web, theres a couple of places that have lists for identifying yamahas. pics would be VERY helpfull... is it orange and white with silver fenders? my DT 250 is a '76 and its the orange and white one...
Yep, Orange and white w/ silver fenders. I'll take some good pictures the next time I visit my mother. So, it will probably be sometime in August before I get back there. I'll post back once I get some pictures and more info on the VIN. I assume the VIN is on the steering column somewhere, similar to where they are now on Yamaha's?
Posted July 07, 2006 - 10:33 AM
Posted July 07, 2006 - 11:39 AM
If it looks like this, its probably a '75 or a '76. the numbers are on the steering stem.
I'm prett confident that it is a '72 or '73, my brother had it in high school and he graduated in 1974. I'll know more when I get the VIN.
Posted July 08, 2006 - 02:30 PM
Posted August 14, 2006 - 04:33 AM
I went to my mom's house this weekend and did a little bit of work on the bike. I replace the injector oil and rode me and my son on it for awhile. It was fun, my son had a blast. I took the VIN number from the steering column to the local Yamaha shop, but they weren't too much help. I couldn't find any numbers on the engine because I wasn't sure where to look and it was pretty dirty. Anyway, the VIN of the steering column is DT1F-121589. So, if anyone can help me garner any information from this VIN I would appreciate it. I will need to put on new tires and turn signals and I also noticed that the brake light plunger attached to the brake pedal is broke. Ahhh the fun of restoring an old bike. Here is a link to a picture that I put on My Garage. Hope it works.
Posted August 25, 2006 - 10:07 PM
Don't let the parts guy's pull your chain, it's his job to help you and locate parts for you. Remind him that in addition to the "obsolete" parts he isn't fond of locating for you, you're also going to need tires and tubes and 2 stroke oil and gear oil and new handlebar grips and chain lube and eventually some new riding gear, etc. and if his dealership can't help you with the restoration of your DT-2, why should you give him ANY of your business! Better yet, ask to see his boss and remind him. Slowly but surely the dealers are beginning to realize that there is a market for vintage parts. Sometimes they need to have their nose rubbed in it!
Posted July 07, 2007 - 09:54 PM