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aright guys, i need tech questions about bikes that would be good for publication.
My cousin Jethro has a bike with screw/locknut type valve adjusters and he has to adjust his valves every 4000miles. My cousin's brother's
uncle Jim Bob has a slowmoving cruiser with hydralic valves and never has to adjust them. My sister's father's husband has a bike with shims over buckets and can go 10000miles between adjustments, and I've got a Yamaha 20valve Genesys engine that can go 20000miles. Whats the difference and why the milage difference.
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