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  1. Sea Rider

    Pulling Inflatable Toys

    How many of you guys have pulled inflatable toys with your current boat/engine combo ? what's your experience as opposed to normal boating ? Forgot that had a packed inflatable banana for 4 passengers, so driving alone pulling just one passenger will be just fine at around 30 Km/h on flat no...
  2. Sea Rider

    motor too high and out of adjustment holes

    If it's a short shaft engine sitting on a long shaft transom wil not produce any splash in/over transom whatsoever, once on plane with well trimmed engine and boat riding parallel to water surface will see the AV plate visually exposed, on choppy seas will have excessive aereation, worst on...
  3. Sea Rider

    TC-W3 Certification

    We're having a shortage of TC-W3 reputed brand oils, there's a local Company which is importing 2 stroke oil in barrels and re packing it in small !/4 bottles. The label states TC-W3 outboard rated. Should I ask the local importer to provide a copy of the importer's TC-W3 certification, the one...
  4. Sea Rider

    Prop change for more top speed.....?

    Tohatsu wot numbers for the 25 & 30 HP engines are correct. On the 30 is 150 rev less than the 25 model, don?t ask me why. Anyway whichever prop pitch you go after the overall speed increase will be just slightly more, assume not that wow speed compared to your actual top speed. That engine is...
  5. Sea Rider

    Ear muffs to flush yamaha 40hp? Nothing fits.

    If engine has 2 standard side water intakes, just buy a single or double water feed ear mufs and modify the muffs, This simple solution betters the overall water intake pressure. Can use a belt, rubber belt, bongee rope.... Happy Boating
  6. Sea Rider

    Non ethanol or ethanol gas for a 99' 125 Merc. outboard?

    I'm not saying that E fuels will destroy the engine. The issue here is that if you have lived with E fuels all your boating life and happen to be a non mechanic boater won't know what I'm talking about. I?ve been through it and happen to have documented the harsh and awfull transition fron non...
  7. Sea Rider

    Non ethanol or ethanol gas for a 99' 125 Merc. outboard?

    What was saying is that higher octane fuels have better fuel additives compared to less octane fuels. We sell Tohatsu outboards, a experiment was conducted 2 years ago. 2-2 stroke 30 HP engines were used on 2 same boats, one with 90 octane fuel, the other with 95 octane fuel, both fuels Non E...
  8. Sea Rider

    Non ethanol or ethanol gas for a 99' 125 Merc. outboard?

    For me non E all the way, thin rubber parts as carb o'rings & fuel pump diaphragms, will last near forever compared to E fuels which tend to deform ballooning them in a very short time period. Happy Boating
  9. Sea Rider

    Quadrafoil

    Check this new water toy : https://www.youtube.com/watch?v=ooAAnZIgj8o#t=34 See if you can guess what's going on at back of quadrafoil ? At 22,500 Euros thought these guys had it resolved. Happy Boating
  10. Sea Rider

    30hp Tohatsu stalls under load

    Some issues , general ideas : Is it a second hand engine you bought from previous owner ? If so, did the engine came with tech issues as described ? Mixture screw only works at idle, after you pass idle there's nothing to adjust. Adjustment is 1 -1/4 ? 1/4 turns from lightly seated. Readjust...
  11. Sea Rider

    GAS TANK

    It's a good thing to run bowl dry disconnecting engine connector untill engine drops dead. If wanting complete fuel circuit to be near 98% empty, flush engine on and install a spare female fuel connector on engine connector and let engine die, this will double the idle or fast idle flushing time...
  12. Sea Rider

    Cylinder Issue

    Thanks all, Some updates, on first pic ring cut was not at right working angle. Now the ring cut as shown on second pic is at its correct working position, now ring light gap is shown between 11.30 to 1.45 o clock position when cylinder is placed against a even back light. Seems the ring is...
  13. Sea Rider

    Cylinder Issue

    Would like to know which could be the cause for a 2 stroke 70 CC cylinder with low hours from new to present a light oval shape (arrows) which let's small light to pass through wall when ring is piston aligned inside cylinder and block is placed against a even light. What happens if a new...
  14. Sea Rider

    Needle Valve Issue

    Update: Being owner not completely happy when first starting engine due to too much rope pulls, although engine was brought back to life when about to be used as a second anchor for a J-24. Ended stripping the whole powerhead down, as assumed earlier, some mega grey silicone was found slight...
  15. Sea Rider

    RPM & Speed Relationship

    Sorry for the dumb question : Is there a direct relationship between rpm and max speed ? Scenario a given boat/engine combo running 25 knots at max wot 6,000 rpm with 13 pitch factory delivered prop. Iif changing prop to a 14 pitch, definitely will lower max wot rpm to say 5800. Will the max...
  16. Sea Rider

    Soldering Issues

    Need to bolt down a 50 HP onto transom. Once bolted would like to solder some weld points nut to pin body to avoid passerby or night thieves stealing the engine. Was wondering if it would be good to remove all grounds from block as there will be a ground electrode attaached to engine when...
  17. Sea Rider

    Tongue Weight

    Was wondering if there's a rule about proper tongue weight, assume will vary accordingly to boat size and weight, right ? I'm finishing a trailer for a 14.5 footer rib with attached OB which weights around 250 kilos (Rib + Engine), Somebody said that 10-15 Kilos at tongue would be more than...
  18. Sea Rider

    Strange Carb Issues.-

    Paul, Is it possible to have issues on the idle carb circuit specially at first starts or cold restarts and no issues once engine is warm. I'm a big fan or running carb bowl and sometimes fuel filter dry. When outing next day or days after, go through the entire process of opening tank vent and...
  19. Sea Rider

    2003 Tohatsu 9.8B 2 Stroke ran good now wont start

    Some issues ; How can you assume there's water inside crankcase if ever was there with all the pulls you have given the engine. Have not changed a single exhaust gasket ever mostly because I torque the whole engine gaskets from time to time. Happen to have in use engines with more than 1.5K...
  20. Sea Rider

    Mixture Screw

    Paul, Does this makes sense : I'm not a big fan counting mixture screw turns when removing them from carb. Preffer measuring the height between crew head to carb base at 6 o'clock position with a vernier tool. Usually comes factory adjusted to 10 mm, after 2 stroke engines are sufficiently...
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