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  1. Sea Rider

    Is a 2010 Tohatsu 90 TLDI the same as a Mercury of any type ?

    Both brands have their own TLDI Low Pressure Direct Injection Technology Tohatsu fabricates 2 strokes 2.5 to 30 HP motors for Merc sold on countries worldwide that has not banned 2 strokes motors along same 4 strokes ones. Tohatsu has a joint venture with Merc at their Komegawa Japan Factory...
  2. Sea Rider

    Yamaha 60hp to 90hp on a pontoon

    No prop swap will convert a 60 HP motor to up 40 HP more. The only possible way to get the full 60 HP out of that motor is propping it right to run towrdards its max wot rpm range factory stated. All boats have a max HP and max number of passengers rated for, if will be constantly boating with...
  3. Sea Rider

    Thermostat housing hole.

    Better wait and not order a full carb kit untill the carbs are opened up and check which parts will be needed, float gaskets will be the way to go as a starter. About the Pilot's Screw Removal and Reinstallation. For each individual carb, using the rear depth stick of a vernier caliper tool...
  4. Sea Rider

    '85 suzuki 40 hp

    Was the kill cord connected to the switch ? If so, get a spark plug tester, the ones with a small light bulb in middle that glows when the rope is pulled, follow installation procedure. Happy Boating
  5. Sea Rider

    Tohatsu 9.8 HP Revival.-

    The second long CRC carbon remover application through the drilled hole did an excellent job, now the motor runs geared on muffs much smoother than before. One story is running on muffs geared, other one pushing a boat on water. Although the motor can run with no issues at full grip, when at...
  6. Sea Rider

    Thermostat housing hole.

    Which other parts aside the bowl gasket are included in the carb kit, all the jets, main nozzle, pilot screw, needle valve assembly, float ? A full carb kit should cost no less than $ 50.00-60.00 per carb. A single bowl gasket is around $ 10.00. If it's in a bad shape will see fuel filtration...
  7. Sea Rider

    Thermostat housing hole.

    It all depends on what the internal carb condition will look like, impossible to know until the carbs are not opened up. Do one carb at a time, start from the upper one as not to mix carb parts between them. Do not remove the Pilot Screw from any of them, needs to be measured as to put them back...
  8. Sea Rider

    Tohatsu 9.8 HP Revival.-

    This 2 stroke 9.8 HP motor in a terminal condition was sent to me prior being used as an anchor to see if was possible to revive it so accepted the challenge as have never before worked on a 9.8 HP. What was found : The carb was found in such an internal mess that would have been very...
  9. Sea Rider

    Thermostat housing hole.

    The tall tube with tiny holes that protrudes upward around the middle carb section is called the Main Nozzle. Seems the carb needs an exhaustive preventive internal maintenance. Check pic on post 22, it's the tall part at 6 o'clock. if going that route better service all 3 carbs in a row. Would...
  10. Sea Rider

    Yamaha 60hp to 90hp on a pontoon

    As the song goes : The OP only wants a little help from... doesn't want a speed demon pontoon to scare the kids out. Untill a wot rpm run as loaded it's not reported, this post will turn very speculative. That motor/pontoon combo will benefit achieving a higher fast displacement non planing...
  11. Sea Rider

    Compression test low on BF100 honda mid 80s

    Yep, will second Ahicks post. Motors can carbon up due to : Not using a thermostat will make the motor to run much cooler that it should, will lessen top cylinder combustion, incorrect spark plug thermal range and gap will also contribute to increase this carbon up escenario. On 2 stroke motors...
  12. Sea Rider

    Yamaha 60hp to 90hp on a pontoon

    Before going for a 2 stroke 90 HP motor need to post the max wort rpm the 60 HP motor achieved with four up along 2 kids being pulled on tubes. You could be lugging the motor with all that load and never knowing a thing about it. Does the motor counts with an installed dash tach ? Max speed is...
  13. Sea Rider

    Yamaha 60hp to 90hp on a pontoon

    Or you can keep the current Yam 60 HP, buy a Propulse or Piranha type prop. It's a four blade with 5 variable pitches to choose from, can kill two birds with a single shot for the motor to run towards its max wot rpm range factory stated. These type of props will dial the correct pitch needed on...
  14. Sea Rider

    Yamaha 60hp to 90hp on a pontoon

    Unless stated on the contrary by the OP definitely it's another 2 stroke motor powering the combo. Happy Boating
  15. Sea Rider

    What 15 carb fits my 9.9?

    You could buy the offered 15 carb and tell the seller that if doesn't work as expected will be sent back along collecting the money payed for. If doing the test report the max speed achieved with both carbs with current prop and equal distance runs. Happy Boating
  16. Sea Rider

    What 15 carb fits my 9.9?

    Sorry, hard to tell, there's too many 9.9 and 15 HP models from that year to check them all. If the carb is cheap try it and check if worked out. Would be good to make a GPS test lightly loaded on flat calm water cond when at 9.9 and 15 HP at full throttle and check how much the top speed has...
  17. Sea Rider

    Thermostat housing hole.

    After priming the bulb firm with arrow pointing upwards leave the bulb resting at any other position. The idea is to create enough fuel pressure inside the carb and fuel hose as well and check where's the fuel exiting from. With E fuels usage fuel filter's cap widens inside their housing and...
  18. Sea Rider

    Yamaha 60hp to 90hp on a pontoon

    Prop the motor right to run towards its max wot rpm range factory stated. Down issue is tubbers + 4 on board at same time. How about leaving those 4 souls at terra firme and going out with the kids for tubbing, afterwords can pick the 4 souls and have fun and not invest on a 90 HP motor. Happy...
  19. Sea Rider

    What 15 carb fits my 9.9?

    Can swap just the carb and will be good to go, but the correct upgrade involved both parts, was a hint given to me by a guy that used to work for Evinrude Tech Department. Evinrude is a complicated Company to work with, has too many different year models to check them out to compare between...
  20. Sea Rider

    Thermostat housing hole.

    Was the broken bolt been removed at the machine shop ? When possible prime the motor with bulb held upright till firm, will prime much faster and firmer, leave the motor primed and check if the fuel spills remains same, has increased or decreased, most boaters don't have the least idea what's...
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