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  1. Sea Rider

    No water Flo...

    How old is the motor, was run in fresh or salt water ? Remove the thermo and check the internal housing condition, is it clean, rusted, salty ? Happy Boating
  2. Sea Rider

    20 hp Mariner No spark

    An spotless clean carb will always asure excellent idling if all the other parts are doing their homework right. Clean the needle valve, must be shinny.. Happy Boating
  3. Sea Rider

    1996 Yamaha 15hp rebuild

    Perform a compression test, if still high keep the current crankcase, a machine shop will be able to remove the broken bolts and if the threads are shot once removed can install timerserts, helicoils, once done install new base and exhaust gaskets and if the cylinder head is removed order a new...
  4. Sea Rider

    Setting max advance

    Does Yam recommends adjusting the timing advance doing it that way ? That I know carb/ timing advance synch must be done at terra firme with motor Off... Happy Boating
  5. Sea Rider

    Clicking noise in neutral

    Are you tesing the gear box forward/reverse with motor On whether on muffs, barrel ? or geared forward/reverse with motor Off turning the flywheel CW by hand without water circulating ? Are you shure the linkage is fixed, non adjustable ? Happy Boating
  6. Sea Rider

    Outboard running rough and I need help

    Welcome to Iboats, Is the carb's rod well synched to the timing advance ? If that motor has individual small ignition coils, troubleshoo each with a spark tester to go from there. Probably more than one are not firing or firing poorly ? Happy Boating
  7. Sea Rider

    90hp Nissian won't open up

    Post a pic of both plates side to side to compare, by bigger you mean has more circumference, it's taller ? Happy Boating
  8. Sea Rider

    Tohatsu m70a water pipe

    You're welcome, The motor seized due to poor lubrication or overheating ? if the latter did you tried to re start it once cooled down ? An overheated motor will be much easier to be put back into operation... Happy Boating
  9. Sea Rider

    2000 m25c3 25hp 2 stroke flywheel

    It's irritating and frustrating. Have you tried running the motor with 3 magnets, don't have the slight idea how the motor will handle that situation ? Happy Boating
  10. Sea Rider

    Cylinder Compression Incongruences.-

    What's the point in crying over spilled milk, that crankcase had many issues that contributed to its full detereoration such as, partial clogged lower leg's water intakes, clogged water passage in exhaust chamber, stolen check valve from lubrication pipe and cheap 2 stroke oil use and abuse...
  11. Sea Rider

    Merc 15 hp running LOUDER

    Welcome to Iboats, That's a 2 stroke motor, right ? Re torque again the new base gasket, probably has ceded a bit with heat ? If that motor has never been decarboned during its entire life run 1/3 to 1/2 can of CRC marine carbon remover, the can specs are bit light, this procedure works much...
  12. Sea Rider

    8hp starts but runs only at high rpms

    Would be interesting to check the current piston's ring gap to determine its wear : Place ring in its respective cylinder bore. Use a piston to square the ring in the bore. Check with feeler gauge.. Check tech specs for that motor. If the cylinder walls exceeded their max allowed...
  13. Sea Rider

    Tohatsu 6hp still not broke in having carb issues?

    Congrats, now you know that in order to play properly with prop pitches need to install an induction tach, with current 7.8 x 8 prop the motor if revving at 5490 is revving towards it's middle side of its wot rpm range which is 5000-6000 rpm. How loaded was the Sib when the tach dialed 5490 revs...
  14. Sea Rider

    Cylinder Compression Incongruences.-

    Keeping Up with the Restoration.- The dirtiest things you have to deal with when performing a full crankcase restoration is to remove all the carboned and salted scenarios you will find inside any 2 stroke crankcase. Was experiencing different cleaning methods in which harsh cleaning solvents as...
  15. Sea Rider

    Controls and prop for Nissan NS70A2

    It's mandatory to have an installed working tach to test the 3 available props, doesn't matter if chewed up, report with which one the motor achieved the highest wot rpm run to go from there. All motor runs under their min to max wot rpm range factory stated and without a tach won't know. Ideal...
  16. Sea Rider

    8hp starts but runs only at high rpms

    Have you removed by chance the installed piston's rings ? How about installing a new set of rings on both pistons ? Light cylinder scratches or burns can be removed with water-resistant sand paper of around #400 and #600 to finish. Happy Boating
  17. Sea Rider

    Honda Four Stroke BF9.9

    How old is the motor, it's used in fresh or salt water ? Have you tried running a cannula up/down the peeing port with motor ON ? If same flush the motor while sitting in a barrel with Salt Away, hope the product works. Happy Boating
  18. Sea Rider

    Controls and prop for Nissan NS70A2

    What are the numbers stamped on current SS prop ? Need to run a wot water test with current prop as loaded and report max wot rpm achieved to know how much off from max wot rpm range that prop is revving at if plan propping the motor right... Happy Boating
  19. Sea Rider

    8hp starts but runs only at high rpms

    Does the Service Manual states what should be the standard compression and the decompressed values on the combustion chamber if both values are mentioned ? On a 2 stroke motor 70 PSI is way low, don't know about on 4 stroke ones ..... Happy Boating
  20. Sea Rider

    Tohatsu m70a water pipe

    Yes, it's one single piece. To access and install a new water pick up tube will need to remove the crankcase from the pan, with middle leg removed, remove the engine base and install the new tube which is attached with 2 upper rubber neck seals under the base, It's a long work involved, will...
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