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  1. M

    Any 90wt gear lube for bottom end?

    Yamaha 150 2 stroke. Can i use any 80/90 wt gear lube for the bottom end or do I need to use yamalube? Is it specifically a marine blend and what characteristics make it a marine blend? thanks
  2. M

    1994 Yamaha 150 use 1989 200 for parts?

    I've got a 1994 Yamaha 150. I've been offered a 1989 200 for parts for a very resonable fee ($300) Is this worht it for a parts motor? Is there much that can swap over? Leg, starter, prop, lifts, ect? or are they 2 completely different beasts? thanks
  3. M

    Size of plug gearcase leg 150 2 stroke?

    Hi, whats the size of the drain plug on the leg of a Yamaha 150? ie what fitting do i need to pump gearcase lube in through the drain plug. thanks
  4. M

    Let's finally decide on the stale fuel debate......

    I have spent hours on this...and I'm not sure if I'm any closer to a definitive conclusion. I have 40 gallons left in my onboard tank, run it through a Raycor filter before it hits my Yamaha 150 (2 stroke oil injected). I've stabilized with Stabil but not until just recently (2.5 months after...
  5. M

    Replacing head gasket Yamaha 9.9 4 stroke

    Hi, is there anything that I need to be aware of in changing out this head gasket (cooling ports blocked with salt corrosion) other than proper torquing? Tips? Tricks? Use of sealant along with head gasket like in automotive repairs? Keeping timing correct tips? thanks
  6. M

    What year 9.9 Yamaha 4 stroke

    Trying to find out the year of this motor that came on my boat so i can get parts. FT9.9EXD 6G8 783976 Runs like a top exept for water flow, looks like the head and chambers are packed with salt on the upper chamber. Easy to change out the head gasket to remove salt buildup? thanks
  7. M

    Guest duel battery switch question.

    Hi, i just can't seem to wrap my head around wiring this thing. Everywhere i have read says to wire the motor battery to say the #1 post and all boat accessories thru the #2 post and a separate battery. so 2 batteries, 1 strictly for starting and one for all the accessories (lights, pumps...
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