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  1. Sea Rider

    Avon redcrest floor

    A pitty to hear about that, your last UK resource will be to contact Ribnet, Sib guys posting there will surely have an Avon Redcrest who could send you the floors and stringer dimensions. I wish you the best of luck... Happy Boating
  2. Sea Rider

    Please Vote: Is this Stator Bad?

    If one bank within tech specs and the other not, seems will need to change the whole stator, motor will work much better, fire evenly and strong.... Who said that boating was a cheap water sport ? Happy Boating
  3. Sea Rider

    Avon redcrest floor

    Check with Defenderdotcom an Avon dealer if can order a set of OEM floorboards from the Avon factory, if available expect to be darn pricy, don't expect for those guys to send the requested dimensions information of the floorboards, their business is selling inflatables boats and their spare...
  4. Sea Rider

    Carburetor question on restoration I’m working on 1992 40 hp MSHQ Yamaha

    Upload a pic of the lower carb showing what you mean by polit screw to have a better idea what looks like. If you adjust the upper or middle carbs idle settings will the motor be affected or will remain unaffected as the lower carb ? Have you removed all 3 spark plugs to check their current tip...
  5. Sea Rider

    Carburetor question on restoration I’m working on 1992 40 hp MSHQ Yamaha

    That motor has a built in fuel pump located at the lower carb, if the diaphragm were shot the motor will stop working soonafter what's been initially fuel primed has been totally burned, will need to constantly prime the bulb hard to keep it running, can't see any crankcase being directly...
  6. Sea Rider

    Yamaha 15 mounted too high

    Some issues : Doesn't matter if being a 2 or 4 stroke Yam motor both have tall gap plates, so ts is not an issue blaming one or the other.. For me that motor sits way high, can't tell how much the lower leg will drop when sitting the motor flush on transom, will guarantee that the combo will...
  7. Sea Rider

    Avon redcrest floor

    Welcome to Iboats, Will doubt anyone here will have in use an Avon Redcrest, a pupular watercraft in Europe, don't know about in USA ? If not mistaken that model were available in 2 versions : with an inflatable air deck and wooden panel floor. So this is what you're looking for : Sorry...
  8. Sea Rider

    Carburetor question on restoration I’m working on 1992 40 hp MSHQ Yamaha

    Those Yams have only a main fuel pump, if flooding one carb will flood the others as well. Thought that have removed and bypassed the valve found in between the tank and motor connector. Luckily don't run those EPA tanks and hoses, old tanks with air vents and standard fuel hoses are preferred...
  9. Sea Rider

    Yamaha 15 mounted too high

    To clarify : That's a clamp motor that was initially installed high on transom for the AV plate to face the boat's botton, right ? If so, why don't you sit the motor fully down on transom, clamp it tight and check how it performs with a new wot run as before. Do you know the min-max wot rpm...
  10. Sea Rider

    DVA stator testing

    If suspect there's water intrusion in the lower cylinder, the plug's tip should look rusty after some run hours at open water, how much rusty, will depend entirely on how much water entered that particular cylinder. Assume that head gasket has not been re torqued to specs since new, right ...
  11. Sea Rider

    Excess water coming from drain hole?

    That orifice It's just a midsection water drainage, the quantity expelled will depend on how much water pressure comes out the hose to the muffs intakes. There's also drainages under the bottom crankcase which expells water downward through the midsection exhaust muffler and drive shaft...
  12. Sea Rider

    1986 Yamaha 25hp doesn’t run good under a load

    If it's a non through exhaust prop should have a shear pin, remove the prop and check if in good condition, then check whatever comes to mind.. Happy Boating
  13. Sea Rider

    Excess water coming from drain hole?

    Did the 70 peed same as mentioned before the water pump was rebuilt ? As long the water pump grommet has matched well the vertical water tube and the motor cools properly when running on water not an issue. Seems the old water pump was loosing pressure which the new one increased. Out of...
  14. Sea Rider

    m70a2

    It would be the last straw for that nice engine to stay stranded at terra firme by such an insignificant simple metal part. Happy Boating
  15. Sea Rider

    Im going crazy! Mercury Keikhaefer Merc 110

    Check at 1.41-1.43 min, there's a small non continous water flow, droplet peeing seen in a straight line going downward form the cowl's letters ER which seems with prostate issues, if that's the peeing port definitely it's near clogged, run a wire, cannula, weed wacker wire there.... Happy Boating
  16. Sea Rider

    DVA stator testing

    Does the motor counts with a 3 independent ignition coils ? if so, the lower one isn't doing its homework right and on its way to fail at any time provided that the lower plug works right. If not that costly change all IC for new ones. Won't find on 2 stroke motors clean plugs, usually one...
  17. Sea Rider

    1986 Yamaha 25hp doesn’t run good under a load

    Depends, if 100% shot yes, on its way to become spun no, the hub usually takes some time to be fully kaput. As Mike 1 asked, where did you wot test the motor, looking at it, on muffs, open water ? What slips is the internal rubber hub, turns bad over time and use... Happy Boating
  18. Sea Rider

    Im going crazy! Mercury Keikhaefer Merc 110

    As seen from behind, check at 0.18 minute the left side of the lower pan where a tiny water flow or water bubbles are being released which seems to be the peing port ? the impeller is in bad shape or the motor is excessively internal salted if used in salt water or a combo of both situations...
  19. Sea Rider

    Yamaha 15 mounted too high

    Sitting the motor at that precise setting in a dry terra firme installation doen't mean a thing to me as you won't know once the combo is running at plane on water at which lower leg's plates is the water flow passing by which is key to know to achieve top prop thrust, that's with a healthy...
  20. Sea Rider

    1986 Yamaha 25hp doesn’t run good under a load

    You're welcome, To the OP, report if with prop issues after the hub slip test to go from there. Happy Boating
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