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    Possible Lower Unit Problem

    Took the boat out this weekend & noticed a vibration when in low rpms' going forward. I just changed the lower unit oil & found the normal metal fuzz along with very small & thin pieces of metal (fall apart in your fingers). In addition, I recently removed the lower unit to change the water...
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    Prop Question

    I'm trying to help 2 of my friends prop their new boats correctly. One has a 2006 115 4 stroke Suzuki on a 19ft. bay boat with a 19 pitch prop & is reaching 6100 RPM's at W.O.T. (39 mph). The other has a 2005 115 4 stroke Yamaha on a 18ft Bay Boat with a 17 pitch prop & is reaching 6000 RPM's...
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    Prop Question

    I'm trying to help 2 of my friends prop their new boats correctly. One has a 2006 115 4 stroke Suzuki on a 19ft. bay boat with a 19 pitch prop & is reaching 6100 RPM's at W.O.T. (39 mph). The other has a 2005 115 4 stroke Yamaha on a 18ft Bay Boat with a 17 pitch prop & is reaching 6000 RPM's...
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    Corroded Block --- >Rodbolt

    Rodbolt any suggestions on my previous email about corrosion on block where heads were pulled & cleaned?
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    Corrosion On Block

    I have a 1998 C115 Yamaha that is in the shop getting heads cleaned & poppit valve changed due to high RPM overheating. Unfotunately, they were getting ready to install cleaned heads & noticed on the edges the block has actually corroded in 3 areas. They informed me that they have had some...
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    Overheating at High RPM's

    I have a 1998 Yamaha C115 that will not run over 4K RPM's without the buzzer going off. I can run at 3500 all day with no problems. I've changed the impeller, thermo's, checked poppit valve(replaced spring). I heard it's probably time to pull the heads & clean the corrosion build up. I have a...
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    Paint Engine Cowling on 115 Yamaha??

    I have a 1998 115 Yamaha that I recently purchased that has bad oxidation on the top of the engine cowling. I thought that I could wax or polish it out, but it's not working. Any suggestions? Does Yamaha sell the paint to match?
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    Carb Adjustment 1998 C115 Yamaha

    How many turns should the fuel air screws be backed out on a 1998 C115 Yamaha?
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    Yamaha Digital Tach Problem

    I just installed a used Multifunction digital tach for my 1998 C115 Yamaha. The other day we took it out & you cannot read all of the numbers, some of the bars are missing on the display. Is this a bad tach, wiring etc.?? In addition, when it comes on it reads 6P. Is this the correct setting...
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