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  1. MarvinGabriel

    Parts Manual - 2003 Mercury 9.9/15 HP

    Hello. I've been trying to find an online parts manual for the Mercury 9.9 4 stroke, and the 15HP 4 stroke. I'm trying to identify the parts differences between the two, for a conversion. I know that the carb is different, but suspect I need to change exhaust porting as well. They're both...
  2. MarvinGabriel

    Factory Manual for 2003 9.9 4 stroke

    Can somebody point me to the correct factory manual for my motor? Thank you!
  3. MarvinGabriel

    2003 Mercury 9.9 4 stroke (323 cc) bogging

    Ok, This is not a gas tank issue, so I thought it wise to start a new thread. so this engine is getting frustrating. I replaced the gas tank, the primer bulb/fuel line, and went ahead and put fresh fuel lines on (the old ones were mushy), and replaced the fuel filter. Just to refresh, I was...
  4. MarvinGabriel

    Fuel tank venting?

    So I was out today, with a merc 9.9 4 stroke that wouldn’t stay running. I noticed that the bulb needed to be repumped, and saw that hoses seemed to be collapsing before the fuel pump. I have never used this particular tank before and am confused as to whether or not the tank vents! It’s an...
  5. MarvinGabriel

    Mercury 9.9 4 stroke long to short

    Hello! I’ve been over in the Tohatsu room for quite awhile, and it’s time to start on this Merc. I’ve got a 2003 Mercury 9.9 manual start long shaft, and I’m wondering if there’s a way to make it a short shaft? It doesn’t look like it’s too terrible of a job, but I’m no mercury mechanic, so I...
  6. MarvinGabriel

    M40C Timing

    I'm doing some checking and found that my timing is way off from the service recommendations. At Idle it was 5 degrees ATDC. But, when I set it to about 2 degrees ATDC, it goes to maybe 20 degrees BTDC at full throttle...there is no play in the connecting rod pivot points. WHat gives???
  7. MarvinGabriel

    Issue with Teleflex Steering

    Hello. I have a Lowe Big Jon that has a console, with a Teleflex Safe-T Steering unit. I just noticed last night that it doesn't turn anywhere near as sharp to the right as it does to the left. It only became an issue when I was trailering the boat last night. This morning, I looked at the...
  8. MarvinGabriel

    1997 M40C Stalling

    Ok, just finished installing the tiller, and have an odd issue. The engine doesn’t idle correctly, and stalls on occasion, even when warm. When it stalls, the only way to get it to start is to choke it, and turn it to wide open throttle...sort of like starting it flooded, but choked...weird...
  9. MarvinGabriel

    1997 M40C Tiller Conversion Question

    Hello all. I'm in the process of making more usable room on my Lowe 1648. I've decided to remove the remote controls and go to a tiller. Is this the correct part? https://www.tohatsu.us/index.php?main_page=product_info&cPath=1000_1133_1294_1296_10404&products_id=105037 Also, are there any...
  10. MarvinGabriel

    Is it worth fixing? - 1979 200949A 150 HP Evinrude

    OK, so I removed the heads last night, and found the issue that killed the motor. One of the pistons is all tore up! Apparently, something came loose and bounced around inside the cylinder. I suspect a broken ring, (maybe caught on the exhaust port) but haven't had time to remove the powerhead...
  11. MarvinGabriel

    Tilt and Trim - 1979 200949A 150 HP Evinrude

    I've recently acquired a 1984 Champion 184 as a project boat. It has a 1979 Evinrude, that needs to be rebuilt or scrapped. Anyway, it may be my ignorance of these old units, but I connected a battery, pressed the T/T button to lower the engine, and a solenoid just clicks. Is there a lock or...
  12. MarvinGabriel

    1997 M40C Cooling Water Multiple Spots

    Hello all. I've finished tearing down, and re-sealing my lower unit. Started it, and ran it for the first time at the lake. I noticed that water, of course, comes out of the back of the engine, like I expected. It gets warm after a bit, like I'd expect. I also saw water coming from the...
  13. MarvinGabriel

    1997 M40C Lower Unit

    Hello all, from Lake of the Ozarks region. I've come across an M40C that runs well in a tank, but I had no idea of the maintenance lever of the previous owners, so I drained the lower unit. When I pulled the drain plug and level check plug, what came out made me a bit nervous. It was about 2...
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