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Grass Valley, CA
US
RandyS
11/3/2014 7:59pm
11/3/2014 7:59pm
Edited Date/Time
11/6/2014 9:54am
Anyone know how long you can get out of a stock Yamaha chain and sprockets. A friend passed on an 03 YZ250 to me the other day that he got dirt cheap for the low low price of dirt cheap plus $100. For a grand total of $1000. It has original everything, not sure the owner ever washed it, looks like hell but the pegs are tight. It had original tires but he threw some takeoffs on before I picked it up. The only real clue is the stock sprockets, I haven't seen sprockets this hammered since the 70s. Both front and rear have teeth missing. Anyone ever run the piss out of the stockers? I've always replaced them when the bikes were new. How long can you get out of a stock rear Yamaha sprocket? I'm trying to get an idea of how many hours are on this thing.
The Shop
A better check of time on engine would be the plug,good chance it never fouled and is original,if so the electrode will be worn bad if a lot of time is on it.
Or pull the clutch cover and see how notched the basket is.
If the front knobs were worn at a angle that would indicate wheelies on the road.
I'dcheck compression and see what the psi is.
And, as a sidenote. I'm not a big fan of pressure washers so I never used a pressure washer on my bike for the longest time. Garden hose got 99% of the dirt off. My bike doesnt look shiney new after I wash it, but I know I didnt force water into every bearing either.
My natural inclination was to split the cases and go through it, he knows I've taken brand new bikes before and spent 6 months to build them so he made me promise him that I wouldn't. He could have flipped it for $1500 pretty easily but he passed it on to me for a grand. I've known him since I was about 13 and he's been a bike mechanic for 30 plus years. He said it doesn't even need a top end so I'm going to listen to him.
I'll do a top end after I ride it a few times. I was planning on buying a $1500 RM and putting about a grand in it so I'll come out way ahead on this. Right now I'm planning on pulling it apart, powdercoating the frame, new plastic, the air box has a tear in it so I'm just going to do all the 15 stuff, and I've got a new set of takeoff rims from a new 450 that I spent 9 months building, put 2 hours on and sold(one of the reasons for my promise). And I've got a good FMF pipe for it, it already has an FMF spark arrestor. Then I'm going to watch Ebay for some SSS forks and maybe a newer shock. When I get those I'm going to get a set of Tusk wheels. At that point the forks and wheels will be going on a early 2000s Husky I'm building. I shouldn't be too much over $2000 into it when I'm done. It's mostly going to be a woods bike so it should be pretty perfect. I had planned on a 2002 RM so I could get a green sticker but I have a couple of Z50s registered for this very problem. I'll add pictures to the 2 stroke threads when I get started. Thanks for the info.
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