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  1. K

    Yamaha 4 stroke over rev protection

    Rod /JB Any of the techs. what does the over rev protection sound like on 90 / 4 stroke ?<br /><br />It is either the over rev or air in the impeller houseing / jet.<br /><br />Thanks<br /><br />Kid
  2. K

    Yamaha F90 / 65 low RPMs

    Guys,<br /><br />Changed the impeller (Jet lower unit) to a lower pitch and still can't quite hit 5000 RPM. My selling dealer is not a Yamaha dealer. The boat came as a package from Triton. <br /><br />The closet Yamaha dealer to me can't water test due to the fact their is no water near him...
  3. K

    Yamaha 90/65 jet 4 stroke / Octane

    Ok found and learned somthing new this week. Have been running 89 gas in my 90/65 Yamha 4 stroke since last season. The boat runs 4900 RPMs at 34 MPH.<br /><br />This week I have been filling up with 87 and noticed a decline in RPMs @ WOT 4500 RPMs and 31 MPH.<br /><br />Yamaha reccomends 87 but...
  4. K

    BF90 at WOT

    What is reccomended / proper /siggested running of this engine ? My last engine was a 2 stroke and ran WOT all the time. when I think of running my car engine (4 stroke) WOT all the time I think i would wear it out much faster. how long is it recomended to run a 4 stroke WOT ?<br /><br />It...
  5. K

    Rodbolt, BenC,JB

    Those of us with wounded Yammies and Suzi's appreciate your help in pointing us in the right direction. Thanks for the advice on the low RPM F90.<br /><br />Do you guys smoke good cigars ? Please PM me at don_hardy@hotmail.com.<br /><br />Thanks again for the help, appreciate it.<br /><br...
  6. K

    Yamaha 2003 F 90 - low RPMs

    Rod / JB others,<br /><br />My 2003 F90 / 65 jet max RPm is 4900 maybe 5000.<br />Took it back to the dealer who ran it and said it was running fine. The manual says it should get up to 6000 RPMs.<br /><br />I puching about 2000 lbs boat and gear. Dealer said he was goinf to get me a different...
  7. K

    Aluminum adhesive

    I need to attach 4 ---6 to 10 ft strips of 1/4 inch 6061 aluminum to the hull of 5052 marine grade aluminum.<br /><br />I want to use adhesive to accomplish this. Anyone have success in joining Aluminum to aluminum.<br /><br />Currently leaning towards Lord 406-19 , Water proof with good sheer...
  8. K

    Aluminum to Aluminum Adhesives

    I need to attach 4 ---6 to 10 ft strips of 1/4 inch 6061 aluminum to the hull of 5052 marine grade aluminum.<br /><br />I want to use adhesive to accomplish this. Anyone have success in joining Aluminum to aluminum.<br /><br />Currently leaning towards Lord 406-19 , Water proof with good sheer...
  9. K

    Yamaha F90 4 stroke

    My Yamaha F 90 runs at 4900 RPMs WOT. What are others getting (RPMs) from this engine ?<br /><br /><br />Kid
  10. K

    Tilt Trim at WOT

    I need your help please. Yamaha F90 is it ok to adjust the power trim once I am on plane at WOT ?<br /><br />Also what is the maintence on the tilt trim unit itself. The maunal doesn't discuss this at all.<br /><br />The engine is garage kept so rust shouldn'y be a problem.<br /><br...
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