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  1. M

    Barnacle Buster for outboard flush?

    Has anyone used Barnacle Buster to descale an outboard motor, and if so did you remove the anodes and what was your result? I've got a 99' Honda that is still running great and not (yet?) overheating, but after 20+ years in salt is starting to show signs of build-up. Chunks of free floating...
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    Replacing the needles in a carbureted USA model 50HP Honda

    Can anyone tell me where to find the actual serial number on a 50HP Honda? I've got he frame number and model number, but I can't find the "serial number" anywhere. Here's the motor info: And I'm trying to buy a part that is different depending on the engine serial number, but I can't find...
  3. M

    Removing / replacing non-adjustable fuel screws - 1999 Honda 50HP

    Can anyone tell me how remove the non-adjustable fuel screws and replaced them with adjustable fuel screws on a Honda 50HP motor (same as the 40HP)? Do you have to break off the screw head then remove the rest with an extractor? The space is too small to get in there with a dremmel to cut the...
  4. M

    Rubber bits clogging my carburetor - Honda 50HP 1999

    This is part warning to others with older motors, and part curiosity to know if anyone else has had this problem. I had a sliver of rubber clog the float valve on one of my carburetors, preventing that cylinder from getting any gas. As best I can tell, the sliver (pictures below) appears to be...
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    Why so anxious to close threads?

    I'm just curious why it seems moderators are so quick to close threads here? For example, I found a thread about a motor that I'm interested in and asked the thread starter about it. The same day, before the TS even had a chance to respond, the thread was closed citing that the guy had not...
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    Honda 50HP Cooling system issue (1999)

    I'm looking for someone who is very familiar with the 50HP Honda cooling passages for help on how to clean debris out. I've got a 1999 50HP Honda that suddenly developed an intermittent pee stream problem. The stream has good solid pressure, then suddenly the pressure drops very low and...
  7. M

    Water dripping from shift lever - 1967 Johnson 6HP

    Is it possible for a bad seal on top of the water pump tube to cause water to drip off of the shift lever? My 1967 Johnson 6HP is dripping water from the shift lever when I'm running it in a trash can. It's idling, seems to be pumping water fine at idle, and water is steadily dripping from...
  8. M

    New 6HP Tohatsu burning oil

    I'm looking for guidance on what to do next. I just bought a new 6HP Tohatsu, almost 13 hours on it now, and when I slow down from cruising speed (3/4 to full throttle) I smell the distinct smell of burning 4-stroke oil. It starts easy and runs great. At slower speeds and idle I don't smell...
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    Tohatsu 6HP (2013 model year) fuel hose connector, which one?

    Can someone please point me to a link online where I can buy the motor-side fuel line connector for a 2013 Tohatsu 6HP motor? I found one that said all Mercury 1998 and later, and since the Tohatsu 6HP is the same as the Mercury 6HP I thought this would fit, but it did not. I ordered a...
  10. M

    Lower unit drain/fill washers - Mercury 9.9 2-stroke

    Can anyone give me the part number or a link to the washers that go on the lower unit oil fill/drain screws for a early 2000 model Mercury 9.9 HP 2-stroke? I've looked and looked, and I can't seem to find them. Thanks!
  11. M

    ringing noise at 3000rpm, 6HP 2013 model year

    I just picked up a new 2013 model year 6HP Tohatsu 4-stroke with integrated fuel tank, and I've got just over 6 hours on it so far (installed a tach + hour meter before running). It's on a 13' aluminum boat with a wood-encased transom. Right about 3000 rpm it starts making a loud noise that is...
  12. M

    6HP stops pumping water at high RPM (1967, new water pump)

    My 1967 6HP Johnson stops pumping water at full throttle. It was in the garage for about 20 years, it started right up so I had a new water pump professionally installed. Now it pumps water just fine, up to somewhere around 1/2-3/4 throttle. But when you open it up water stops coming out of...
  13. M

    Johnson 6HP - 1967 (CD-24D) carburetor removal

    I'm bringing a 1967 6HP Johnson back to life (model CD-24D). It's running, but rough, so I want to remove and clean the carburetor. It looks strait forward, except for the pull start mechanism that is blocking one of the carburetor mounting bolts. The spring in that thing is impressively...
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