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Taken descent care of.....This one kept covered on someones porch since 94. No battery. Going to get a sealed one from Walmart. Keeping my fingers crossed that it will start. Assuming it does, any points to check from other owners?????



Thanks,

Brad
 

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Make sure it doesn't leak antifreeze out the waterpump (right below the carbuetors). It's an engine-out procedure. Also please note that parts can be hard to come by, moreso than the 500s. Listen to it starting, any clunking/clanking noise may indicate a problem with the starter clutch (also an engine-out procedure).



But don't let it scare you! I bought mine with a bad starter clutch and did it myself in my mother-in-laws garage without too much difficulty.
 

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I would say make sure the engine cranks and the pistons aren't locked. Then give her a spin. I would expect jelled carbs and all the fluids needing to be changed to get signs of life.
 

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Have you bought a manual yet?  If not, that should be first on the list.  After that, change all fluids and crank the engine with the kill switch on to make sure the oil light goes out.
 

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Have you bought a manual yet?  If not, that should be first on the list.  After that, change all fluids and crank the engine with the kill switch on to make sure the oil light goes out.
Change oil and filter, take the plugs out and squirts some oil down. Then, take off the rocker covers and crank until oil pumps out of the rocker arms. Then, take the carbs out and the bowls off to check for rust. If the bowls are clean and dry, blow them out with cleaner and reassemble. Add gas, and try to fire her up.
 

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No need to buy a manual, there is a scanned pdf version of the shop manual available for download.
 

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Wait, Abe... are you saying the 650 water pump seal can be done IN the bike? I thought it was only the 500 that that worked on. Please prove me wrong as it will save a lot of labor
I won't be upset




Should be able to be done like sheps method. Just replace the rubber guts. I think the yamaha seal might even have the right guts.
 

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Wait, Abe... are you saying the 650 water pump seal can be done IN the bike? I thought it was only the 500 that that worked on. Please prove me wrong as it will save a lot of labor
I won't be upset


Yeppers, waterpump mechanism is the same as the 500's. Remove the cover, and impeller, and she's right there, pop the old guts out of the cup, put new ones in and go ride.



500 pump







650







As for my comment, expect it to leak..... My current 650 had sat for at least a couple years. It dribbled a bit, off and on, then eventually stopped. I'd say ride through it for a bit, as long as it's not hemorrhaging coolant over your shoes, to see if it stops on its own.



On the other hand, my Beta 500, sat at least four years outside and didn't leak a drop....
 
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