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    routing oil pump lines

    1989 90hp yamaha. I replaced the oil pump on this motor when i put a new powerhead on it. Seems everything is running fine,but a simple question. I wasnt really sure where the oil pump lines went to which cylinder when i installed the new pump. Does this matter? I bled the system and its using...
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    Oil Pump adjustment

    Oil Pump adjustment 1989 90 hp yamaha.. Ive installed a new oil pump on this motor.Ive just started this motor for a couple minutes to see if it will fire beacuse it also has a new powerhead on it.I need to bleed the oil lines since they have been off and its got a new pump. Question? How long...
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    Oil Pump question

    I got my new powerhead mounted. The motor is a 1989 90 hp yam. Everything bolted up fine except the oil pump.When i ordered the powerhead the rep asked me if it has 2 or 3 bolts for the oil pump. I told him 2 . It actually had 2 bolts holding the oil pump on but after taking the pump off the old...
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    Stator Boss???

    I ordered a 1989 90hp yamaha powerhead here from I-boats. The guy called me back later and wanted to know what the measurement was at the stator boss. He said it is either 1/16 inch or 5/8 inch. Ive heard of a stator but not a stator boss. He said its got something to do with where stator...
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    Pin on Piston

    Took head off 90 hp 1989 motor after it blew. The pin holding the #3 piston looks like it came loose from the rod. Motor had about 40 hrs on it since rebuild. You think it was a bad rebuid or something else? Im getting another powerhead to put on it. Any suggestions would be appreciated. Thanks
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    1989 Yamaha 90 hp

    I have a 1989 90 hp yamaha. Was recently rebuilt,ran perfect for last 6 months. Even checked compression last week 120 on all 3 cylinders. Couldnt ask for a better running engine. Has oil tank ,been using right amount of oil. No problems whatsoever. Took out this morning and it blew a hole in...
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    89 90 hp rpm range

    Whats the rpm range for this motor. I ordered a manual but it hasnt came in yet. Its a 1989 90hp and its currently on a 15 1/2 foot bumblebee running 5800 rpms. Its a 17 pitch stainless prop. Thanks
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