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  1. M

    Boat not getting up to speed

    I’ve now ruled out that I have sufficient spark in all 3 cylinders (more than a 3/8 air gap), compression has checked out, and my throttle linkage appears to be visually fine. I am now leaning more toward my timing advance. I am not sure what a normal setting is on this, I will have to look in...
  2. M

    Boat not getting up to speed

    Hi Lance, thanks for the response. I have considered upgrading to something with higher HP…
  3. M

    Boat not getting up to speed

    Okay, I suppose I could switch the top spark plug wire with one of the “good” ones and see if that makes a difference on that cylinder?
  4. M

    Boat not getting up to speed

    I have an interesting find. I did a compression test myself and what I found was the 1st cylinder has 120 psi while the bottom two cylinders both have 140 psi. I would imagine this would explain why the engine doesn’t die when I pull the top cylinder spark plug, and would also explain for the...
  5. M

    Boat not getting up to speed

    I did some more troubleshooting today. When running outboard, I found that by unplugging spark wire to cylinder 1, there was a minor audible difference to engine running but engine still ran. When unplugging cylinders 2 and 3 spark wires, the engine died immediately. I tested resistance on each...
  6. M

    Boat not getting up to speed

    Thank you for your response, I will check more tommorow on coil pack/spark. I did do a spark test with a tester and did see spark but as you noted, coil pack might not be giving enough power. I will look into that
  7. M

    Boat not getting up to speed

    I had it in a marine shop recently and my mechanic said he saw good compression in all cylinders. Unfortunately I don’t know any numbers:/
  8. M

    Boat not getting up to speed

    I had it in a marine shop recently and my mechanic said he saw good compression in all cylinders. Unfortunately I don’t know any numbers:/
  9. M

    Boat not getting up to speed

    I have spark and good compression in all cylinders. I’ve checked my throttle cables as well and all linkages/controls are working fine.
  10. M

    Boat not getting up to speed

    I recently took my (new to me) bass boat out for its first maiden voyage. I’ve been fixing it up as a winter project and it has an 89’ 60hp Mercury 2stroke outboard. As I opened her up to full throttle down the pond, I couldn’t help but notice that I was topping out at a painfully slow pace. My...
  11. M

    Outboard starts and runs for a bit then dies

    I will double check the vent tonight, but the anti-siphon is open
  12. M

    Outboard starts and runs for a bit then dies

    Yes this was the first time running the built in tank and new hose. I have pumped gas in with the primer and while doing a carb clean, the bowls were full of gas so I can’t see what the problem would be with the tank and hose. I am also using the correct 50:1 oil mix with AV gas. With the old...
  13. M

    Outboard starts and runs for a bit then dies

    I have a Mercury 60hp 2 stroke outboard, and a few months back I used an open tank of gas and an open ended (cut) hose that I plugged into my outboard and dumped the other end into the tank. The boat ran fine several times with this method, and I was only using just to test motor. After getting...
  14. M

    Advice on how to bend fuel filler hose??

    I’ll look into some metal bends, the span is only 3 ft long so my options are limited in terms of routes. Thank you for the quick response
  15. M

    Advice on how to bend fuel filler hose??

    Any recommendations on how to bend 2” OD rubber fuel fill hose? I need to make a sharp 90 degree bend starting at my fill hole, and a 45 at the tank. I bent a piece of metal pipe to my desired shape and pushed it through the hose, then tried soaking it in warm water in a bath tub for about a...
  16. M

    1988 Mercury outboard won’t trim up or down

    Thank you for your response. I was able to get the motor in with a long 5mm Alan attachment to get to the rear mounting screw, however it was quite a pain to do. I will look into removing the transom bracket, hopefully I can get some more leverage and yank the motor out of there to see how it’s...
  17. M

    1988 Mercury outboard won’t trim up or down

    I recently bought a bass boat with a 1988 Mercury outboard. The trim motor was junk so I went out, bought a new one, installed it, and refilled the system with oil until it came out of the bleed hole in front of the trim motor. However, the hydraulic ram won’t trim up or down. I can lift the...
  18. M

    I recently bought a boat with a 1988 Mercury outboard. The trim motor was junk so I went out...

    I recently bought a boat with a 1988 Mercury outboard. The trim motor was junk so I went out, bought a new one, installed it, and refilled the system with hydraulic fluid, but the hydraulic ram won’t move when trimming up or down. I can hear the motor humming so I would have to assume it’s a...
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