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Yamaha MX & Off-Road Dirt Bikes
Crank bearings on my 71 yamaha DT1?
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[QUOTE="moturbopar, post: 1058840, member: 37312"] Hi, I picked up a 71 dt1 the other day for $75. It hasnt been run in almost 18 years. I pulled the head and cylinder and it all looked like new, rebuilt the carb, and put new points condenser in and a new woodruf key. It now starts and runs great! fires every time on the first kick. The only problem I found is that it has a metalic knock in the lower end and a slight grumbling sound, I drove it around yesterday and could barely hear it, but today it is much louder. It does this with the clutch in or out, so I am pretty sure its not anything in the trans. I pulled the head and cylinder off again and the rod and piston bearings are nice and tight, no excessive play. I did find that I can move the crankshaft (on the flywheel side) up and down, not much but it makes a slight metalic sound. Does this sound like it needs crank bearings? And are the crank bearings pressed onto the crank? Thanks for any help! Shawn [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Crank bearings on my 71 yamaha DT1?
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