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475lbs
change your thermostat
683 lbs.
225 to 315 depend on model
The 1997 model Mercury, 225 hp EFI uses a NGK BR8HS plug, gapped to .035 in.
538 lbs.
40 lb. ft. w/#271 loctite
Yes. I have a friend who is a Yamaha dealer and I bought a boat from him with this engine and he had his regonal distributor run the numbers to be sure this engine was made by Yamaha.
1989
The dry weight for a 1996 model, 225 hp Yamaha outboard is listed at 494 lbs for all models except a 225TLRU, which is listed at 417 lbs.
The Mercury EFI outboards require a minimum octane rating of 87. Since the engine will operate on the lower octane fuel, it is a matter of personal preference.
455 lbs