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  1. M

    Honda bf50 spark and carb issues

    Impact is not good for corroded bolts, especially small ones. I'm admittedly not the best with corroded bolts, but get some heat on it to free it up. Watch some youtube videos to get some tips. Just for reference, there should be some water coming out the exhaust all the time, though more...
  2. M

    Tahatsu 30hp ptt solinoid replacement

    Try https://www.manualslib.com/ . You might need to be creative and possibly find a similar motor if they don't have the manual for your exact motor, but I've had pretty good luck there finding information that I need.
  3. M

    Cutting out and stalling

    Some motors dribble water and others spray with a lot of pressure, maybe someone here can say what's normal for that specific motor. Also if you're wide open and it stutters, it's going to be difficult to say if that's a real problem or if you're hitting the rev limiter, unless you can connect...
  4. M

    8hp starts but runs only at high rpms

    I don't know what size spark plug is in that motor, but that's the size adapter you would need for the compression tester. Most of them come with a few adapters to fit more than one size hole. If the compression is found to be too low, there are multiple potential causes and it would be...
  5. M

    Cutting out and stalling

    Look in the manual where it explains replacing the TPS. There are 2 ways they work. The first is the TPS is manually adjustable and they'll have a little procedure for adjusting it. In this case you can check to be sure the TPS is set properly. This is where the meter I linked above would...
  6. M

    8hp starts but runs only at high rpms

    Does the choke help it idle? If yes the start by cleaning the carburetor. If no then start with a compression test.
  7. M

    Cutting out and stalling

    Not to go off on too much of a tangent, but do you guys who work on boat motors find yourselves having to set the TPS often? If so, would this tool be helpful:
  8. M

    2006 Honda 9.9 Stalls in Gear in Idle

    I've always done the same, but adding the heated ultrasonic really stepped it up to the next level. They're cheap now, some are under $100 on Amazon, definitely worth a shot if you find yourself cleaning anything often that would fit inside one. I toss everything in there that will fit...
  9. M

    2006 Honda 9.9 Stalls in Gear in Idle

    In regards to soaking; I've found that soaking in a hot ultrasonic cleaner can really help a ton, and I think the heat is a big part of that. For solvent in the ultrasonic cleaner I've been using WD-40, there might be something better but so far it seems to really do a nice job dissolving...
  10. M

    2002 Tohatsu 25hp 2 stroke won’t start

    Just a reference to the specs in the manual. Being the engineering type, I always reference the manual when it's available, even when I think I remember something correctly.
  11. M

    2006 Honda 9.9 Stalls in Gear in Idle

    If you couldn't get on plane before then you were definitely way over propped! I'm really curious about the 1:17 thing, but all's well that ends well so enjoy some fishing!
  12. M

    2006 Honda 9.9 Stalls in Gear in Idle

    The 1:17 is definitely interesting. I would say make sure the idle RPM is within spec using a tachometer before spending too much time on other things. If adjustments are out of spec then things may not work as intended.
  13. M

    2002 Tohatsu 25hp 2 stroke won’t start

    I THINK this manual covers your motor, look up the actual model number and double check me: Tightening head bolts: https://www.manualslib.com/manual/829775/Tohatsu-Nb-1000.html?page=116#manual I didn't see the torque value listed in that chapter, so I believe you would follow the torque from...
  14. M

    2006 Honda 9.9 Stalls in Gear in Idle

    You can get a combo hour meter & tachometer on Amazon for around $20. Not super precise, but good enough to help you set the idle to spec. It's a 5 minute installation. They run on batteries and the only "wiring" you have to do is wrap a little wire around the spark plug lead.
  15. M

    2006 Honda 9.9 Stalls in Gear in Idle

    The manual will have a spec for the idle speed. Check your in-gear idle speed against the spec and make sure it's not too slow (use a tachometer, don't guess). But also as mentioned above, small 4-stroke carburetors have tiny little passages that are notorious for clogging up and affecting the...
  16. M

    2002 Tohatsu 25hp 2 stroke won’t start

    Most likely it wasn't torqued to spec or the tightening order wasn't followed, or a surface was not flat or clean. Or an overheat can also do it. Before you re-assemble it, get a strait edge and check both the head and block to be sure they are flat. If they're not then that has to be fixed...
  17. M

    Tohatsu m25c3 2-stroke compression high on one cylinder

    Can you see inside the cylinder with the high compression at all? Maybe borrow or buy a cheap scope? Maybe you've got some crazy carbon build up in there, or something else taking up space that is raising the compression.
  18. M

    Cylinder Compression Incongruences.-

    A ring can most definitely break while running, both 4-stroke and 2-stroke, and on a 2-stroke getting hung on a port is one common way for it to happen. Touching the power valve is another common way, on motors with power valves. Not only has it happened to me personally on an old worn...
  19. M

    Cylinder Compression Incongruences.-

    I doubt there was a broken ring in there for that long, especially if the ends line up with a port, my guess is something caused it to break while the motor was running. Is the ring locating pin for the broken ring still in the piston?
  20. M

    Cylinder Compression Incongruences.-

    Was that OEM sized pistons in there? I doubt he broke a ring installing the pistons, it looks more likely the cylinder was bored/honed and he didn't bother chamfering the ports and a ring caught the edge of the port. Or he didn't measure the ring end gap on the new rings and the gap was too...
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