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General Minitrail Talk
Projects/Builds
1974 CT70 K3 Restoration Project
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<blockquote data-quote="cjpayne" data-source="post: 171852" data-attributes="member: 7183"><p>That chain is extremely worn and/or the oil pump is seizing(I doubt it though). I've seen worn chains eat that oil pump gear like that. Your right about getting to the shaft from the clutch side. Since the teeth on the gear are gone, you can use some small visegrips to hold it in place to loosen. I've used a big slot screwdriver to fit onto/into that shaft and turn. They are tight though. Check closely for scoring in the pump assembly. You might go ahead and replace the pump gears while your in there. You will need the little thin gasket too. Since your bike is stock, you wont need a HVpump and the HVpumps drag the motor down just a little on the top end. You would also have to drill out the oil oriface out to the head assembly with a HVpump.</p></blockquote><p></p>
[QUOTE="cjpayne, post: 171852, member: 7183"] That chain is extremely worn and/or the oil pump is seizing(I doubt it though). I've seen worn chains eat that oil pump gear like that. Your right about getting to the shaft from the clutch side. Since the teeth on the gear are gone, you can use some small visegrips to hold it in place to loosen. I've used a big slot screwdriver to fit onto/into that shaft and turn. They are tight though. Check closely for scoring in the pump assembly. You might go ahead and replace the pump gears while your in there. You will need the little thin gasket too. Since your bike is stock, you wont need a HVpump and the HVpumps drag the motor down just a little on the top end. You would also have to drill out the oil oriface out to the head assembly with a HVpump. [/QUOTE]
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1974 CT70 K3 Restoration Project
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