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  1. J

    9.9hp 4 Stroke ('99) very Hard to start !

    Guys: I have a '99 Yamaha 4 stroke, Hi-Thrust, Electric Start (Thank GOD FOR THAT!)<br /><br />I have to spin and spin and spin and try and try and try to get her running. Without Electric start, I'm not sure anyone has the arm power to do it by pulling.<br /><br />Once warm and once she...
  2. J

    Main Engine and Kicker hooked up to same Battery?

    I plan on my main engine, Yamaha 250hp being hooked up to the same battery as my 9.9hp Kicker.<br /><br />Is there a problem with one charging system damaging the other?
  3. J

    Yamaha 9.9HP High Thrust Questions

    Gents: Just got my Yamaha 9.9HP 4 Stroke, High Thrust via Ebay. I got a great deal, had it shipped via Fed-X freight, terminal to terminal for $142. (MI to CT)<br /><br /> The previous owner drained the lower unit and the engine oil, so I added it as specified.<br /><br />Question #1 ...
  4. J

    9.9HP Kicker Battery Set Up

    I am adding a kicker engine to my Parker boat.<br /><br />The main engine is a 250hp Ox66 with twin power leads each going to two Group 27 batteries.<br /><br />The kicker is a fully remote, electric start engine, 9.9hp Yamaha High Thrust Engine.<br /><br />My question is this:<br /><br />Can...
  5. J

    Testing a VST Pump

    Rodbolt: I got a super deal on a "used" VST Pump on Ebay. It includes the filter.<br /><br /> The seller claims it was bench tested, but I want to test it myself.<br /><br /> Other than putting 12volts to it, is there another way to check to see if it works OK??<br /><br />...
  6. J

    Oil Pump Adjustment on an Ox66 250hp

    Rodbolt: My new to me, 2002 Yamaha 250hp Ox66 runs like a charm. She is on her 3rd year of service and now has ~160hours. I bought her with 101 hours and I know it was dealer maintained. (for the little that's worth with the dealers I know).<br /><br /> Just recently, I confirmed...
  7. J

    250hp Ox66 Oil Rod Adjustment

    Rodbolt and Ray: Can you please tell me the proper adjustment for the oil pump on a 2001 250hp Ox66?<br /><br />Should that arm be touching the stop at Idle? Otherwise, what should be the gap?<br /><br />Thanks,<br /><br />John
  8. J

    VST Tank Re-Install Questions

    Rodbolt and Ray: I am about to reinstall my VST tank on my '98 Yamaha 250hp Ox66. It is all back together with new filter and gasket.<br /><br />I am about to remount her on the engine, but a few things I was wondering about:<br /><br />1. With no oil in the VST, if I just pump the primer...
  9. J

    2001 Ox66 Compression #'s??

    Rodbolt and Ray: I am checking out a 2001 Ox66 250hp Yamaha next week.<br /><br />Can you please tell me what would be appropriate for compression #'s?<br /><br />Anything else I should look for?<br /><br />Thanks,<br /><br />John
  10. J

    LH Rotation 250hp Ox66

    Gents: It appears as though I am selling my Boston Whaler with the Yamaha 250hp Ox66.('97 engine).<br /><br />I am however buying another boat, with the same engine model, 250hp Ox66, 2002 model year !!<br /><br />This engine was installed on the boat as a leftover and is a Lefthand rotation...
  11. J

    T/T Motor Search Used or Aftermarket

    The T/T motor on my '97 Yamaha 250hp is starting to get fairly bad from corrosion. It almost looks like it's rusting from the inside out.<br /><br />Anyway, I want to secure a replacement before she breaks and I have to buy a new one at list price.<br /><br />Anyone know of a place to buy a used...
  12. J

    Yamaha Sync and Link of Carb's

    Can someone please explain to me, with some details, what it means to "Synch and Link" Carb's?<br /><br />I have a friend who is rebuilding his Carb's, but is concerned with just putting them back on the block.<br /><br />Thanks,<br /><br />John
  13. J

    Yamaha VST Filter cleaning with Photo

    <br /><br />Rodbolt and Ray: This photo above is of the VST filter on my '98 Yamaha 250hp OB. I believe it's never been cleaned after at least 500 hours of use, probably more. You can see at the bottom of the filter where I pushed away the dirt with my finger. The "whiter" part if the filter...
  14. J

    Head Gasket Replacement as PM

    Rodbolt and Ray: For a 6 year old Yamaha 250hp, is it a good idea to change the Headgaskets as Preventative Maintenance?<br /><br /> Nothing is wrong, it's just that I'm on a big PM kick lately and want to do all I can while the boat is pulled and sitting next to my house. (Oh...
  15. J

    VST Pump Chamber Winterization

    RodBolt and Ray: This is for you guys.<br /><br />Should the VST pump chamber be full or empty during winterization? It's easy to empty, but wondered if there is any advantage to leaving it that way?<br /><br />Also, I have concerns about refilling it with just the primer bulb. Wouldn't...
  16. J

    All Hail RODBOLT

    I've been reading this Yamaha Trouble/Repair forum for quite sometime.<br /><br />I have learned more than I could possibly have imagined.<br /><br />I owe all of this to Rodbolt and his selfless technical help. He is an asset of incredible value and I want to publically thank him.<br /><br...
  17. J

    Yamaha Oil Reservoir Filter/Strainer Replacement

    I'm long overdue on much maintenance for my '98 Yamaha EFI 250hp OB. <br /><br />One thing I've forgotten for a few years is the Oil Reservoir (3gal tank) filter/strainer. <br /><br />From a blown up diagram over at www.boats.net it appears that the filter is very small part, very close to the...
  18. J

    Yamaha- Boston Whaler Prop Performance Help

    Greetings Guys,<br /><br />Here is the story:<br /><br />Boat: 22' Boston Whaler Outrage ('88) with Whaler Drive Bracket/Tee Top and Front Curtain Installed.(only giving the facts I think are relevant to performance). ~50gal Fuel, 2 Avg. Size guys. (Light load overall, IMO)<br /><br />Motor: '97...
  19. J

    Marine Batteries - Which brand is best?

    Hi Guys, <br /><br /> I want to start the season off with a new battery since the one I have seems tired.<br /><br /> Anyone have any input on which brand is best. I want a Group 24 dual start and deep cycle.<br /><br />Thanks,<br /><br />John
  20. J

    The Benefits of a Freshwater Outboard !

    Just a quick note on the benefits of buying a Freshwater motor over a saltwater outboard.<br /><br />A few months back I bought a used 90hp Yamaha Outboard (1989). It came from the Great Lakes area and upon inspection I could tell that the seller was telling the truth that the motor was only...
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