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  1. bsutravis

    Need the Prop Gurus!

    I've never been happy with the hole shot or top speed at WOT with this old boat being pushed by an even older Tower of Power Mercury. Here's what I've got: '77 Mercury 1150 - 115 HP Boat is an '88 16' - Fabuglass Fish n Ski Prop Numbers: 1411-133-17 and is Aluminum with a 13.25" diameter Max...
  2. bsutravis

    Idle while under power issue

    The motor: '77 Mercury 115 Tower of Power About 4 years ago I had my Merc totally rebuilt by a man in Milwaukee who works for Mercury. He specializes in the old Mercs and he did an incredible job! Every nut and bolt was taken off, the entire motor was went through right down to having it...
  3. bsutravis

    Tower of Power water pump help

    1977 Mercury 1150/115hp Tower of Power Serial Number 4569747 I’m on vacation and last evening I noticed my water stream coming out of the tell tale was just a trickle. I proved around hoping there was a clog but no luck so now I’m trying to do an impeller replace at the lake. I’m praying to...
  4. bsutravis

    Help adding kill switch to a '77 Mercury Tower of Power

    I'm dealing with a '77 Mercury 1150 / 115HP - Ser. Num 4569747 Need some help here... I'm leaving to fish Norfork and Bull Shoals down in Arkansas in a few weeks. Since it's been 5-6 years since I've had my boat down there from my home in Indiana I thought I would check the Arkansas regs to...
  5. bsutravis

    '80 Gamefisher 7.5 Lower Unit Installation

    1980 Sears Gamefisher 7.5 Model 217.585840 So I pulled the lower unit to replace the impeller, which was easy enough. Now I'm 6+ hours into trying to get the drive shaft to seat properly into the motor while at the same time getting the water tube into the pump housing. I've got the motor...
  6. bsutravis

    '80 Gamefisher 7.5 Carb help

    1980 Sears Gamefisher 7.5 Model 217.585840 Techumseh 640-19 Carb I acquired this motor with zero information about it's history, other than it ran. I can get it to start up on starting fluid, but then it's the same story... it dies. I pulled all fuel lines and rinsed the tank. There was a...
  7. bsutravis

    '77 Merc Tower of Power won't start - Video Link Included

    The motor: 1977 Mercury 115 Tower of Power I was at the lake, all was well until......... the starter solenoid seemed to crap out while on the water around midnight after a night of fishing. The solenoid would just click rapidly so we knew it was toast. In desperation I jumped across the...
  8. bsutravis

    Having 2 different Lowrance finders on my boat?

    Santa was nice enough to bring me a Lowrance Elite 5 w/ Chirp with the 83/200 transducer finder for my boat. I currently have a Lowrance X96 200 kHz finder on the boat. My question is can I run both finders at the same time without experiencing too much interference? Both transducers are...
  9. bsutravis

    Motor bogs until I tap the choke button....

    I'm dealing with a '77 Mercury 1150 / 115HP - Ser. Num 4569747 This past weekend my old Tower of Power developed a situation where it would seem to flood and die when I attempted to throttle up beyond idle. I could get up to about 1200 RPM, and then as I continued to push down it would just...
  10. bsutravis

    '77 Mercury 115 Carb Question

    I'm dealing with a '77 Mercury 1150 / 115HP - Ser. Num 4569747 I just got all my carbs pulled and I'm about to begin cleaning and rebuilding them. Can someone tell me what's the deal with these two screws that have the red paint on them? Is that locktite? Should I remove them to...
  11. bsutravis

    Marine Radio Wiring Question

    I just purchased a Marine Grade stereo system for my boat. It's your standard 12-volt setup with 2 speakers. Due to space constraints I had to mount the stereo on the port side above the glove compartment. What I was hoping to do is run my wiring from my trolling batteries so I don't drain my...
  12. bsutravis

    What carbs do I have on my '77 ?

    Dealing with a 1977 Mercury 1150 - 115 HP - Ser. Num. 4569747 I'm wanting to do a total Carb Rebuild but I'm having a hard time figuring out what Carbs I have. I see on the top of the Float Bowl Cover it has the number 1395-5677. On the bottom of the Bowl Cover it says Mercarb and has a...
  13. bsutravis

    Should I be concerned about this WOT data? (Pics Inc)

    I finally got some good data on my boat's speed/RPM so here it goes. I have a '77 Mercury 115hp Tower of Power pushing a 16' fiberglass Fish n Ski boat. Boat is rated for 1350lbs of gear, motor and up to 6 persons. My prop is a 13 3/4" x 19P (48 65024 A1). Running at WOT on the lake...
  14. bsutravis

    Extreme Prop Ventilation or something else?

    I've got a question about a potential prop issue I'm having with my '77 Mercury 115hp Tower of Power. I'm having an issue where when the engine RPM's hit around 2000 all the sudden the engine begins to rev and I basically lose forward momentum in the water until I back off the throttle. Over...
  15. bsutravis

    Do I need a Lower Unit Rebuild?

    I'm dealing with a '77 Mercury 1150 / 115HP - Ser. Num 4569747 I having an issue where when I go down on the throttle and hit the 2000 RPM range my boat seems to gently ease out of gear and the engine revs. It always happens when the boat is about 1/2 way to plane and when it happens the prop...
  16. bsutravis

    Prop Help: '77 115hp Tower of Power Pics Incl.

    I've inherited this boat from my late Grandpa and I am in the process of fixing many things that have been neglected. One thing I notice while running is every now and then the prop seems to "slip" in the water and the RPM's will rev and you have to back off the throttle so the prop "grabs" the...
  17. bsutravis

    Best prices on parts for a Tower of Power carb rebuild

    I have a '77 115hp Tower of Power and I'm wanting to do a carb rebuild on it. I'm leaking fuel when priming the bulb as well as having some issues where it dies when accelerating quickly. My question is, as an alternative from getting hosed in the wallet by the guys at the local Marinas, where...
  18. bsutravis

    Odd shaped gas tank = inaccurate gauge Pics incl.

    Got an odd question. This was my Grandfather's boat and now it's mine..... from the date it was new the fuel gauge never was accurate but Gramps just carried a small gas can w/ him in case he ran it out. Now that it's mine I'm trying to fix the issue. After pulling back the carpet and...
  19. bsutravis

    How to test rectifier on a Tower of Power?

    I have a '77 Mercury 115 Tower of Power that I recently inherited from my late Grandpa. We had a lot of great memories cutting across the water being pushed by that old Mercury! I'm going over the boat and fixing things that my Grandpa let slide in recent years. I haven't been able to get the...
  20. bsutravis

    Lower unit issues?

    I'm dealing with a '78 Mercury 115hp: A couple months ago I spun the hub of my prop. I replaced the prop with my spare, and thought I was good to go. A few weeks ago I took the boat back out to the lake and I'm still having a major issue. I can only give about 25% throttle before the RPM's...
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