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  1. Z

    Oil change

    Hey guys, Is there a guide/post on here for changing motor oil in Alpha one? I am about to dive into it, but I would like to know where the drain plug is, what weight and amount of oil it needs, and which filter it takes. I looked at my manual but it does not tell me where the drain plug is. I...
  2. Z

    Suddenly wont go in forward

    So I had my boat out and it worked great. I took it home and replaced some bad wires (purple / yellow) and the tilt battery wire. I put the boat in, put it in reverse and it works beautifully. I go to put it I neutral and it doesn't do anything. If I shut the boat down, and turn it on, it's...
  3. Z

    What voltage should electric choke get

    I replaced some burnt wires and re routed some wires. All works good but now the choke doesn't seem to kick on. If I recall correctly, if you work the throttle forward and back to neutral, it should have set the choke. I took the arrester off and it didn't seem to do it. What voltage should I...
  4. Z

    Where can I find electrical wire for mercruiser 470

    I am having a lot of wiring issues this year so I finally said screw it! I pulled the crappy wire mess that attaches to the wire harness and am redoing the bad wires, and then re routing it so its not touching the hot engine. I am almost done but I found that the purple/yellow wire that runs...
  5. Z

    How do you charge a second battery

    Re: How do you charge a second battery Thank you all for the help. I removed the connecting wire between the two batteries, as it had to have been draining my main battery. Makes NO sense why my boat would not start when that second battery was dieing. I grounded it against the engine block...
  6. Z

    How do you charge a second battery

    My second battery is not charging so I need to know the proper way to charge the second battery. Do I just run a line from the one battery to the other or do I run a line to the alternator? See my sig for engine info
  7. Z

    [resolved] white/green wire grounding issue

    As some of you know, I replaced a bad gray tach wire from the Ign Coil (-) to the tach. When that was done, the white/green kill switch wire was no longer mated to the gray tach wire. So i ran a brand new size 14 wire from the killswitch to the (-) coil. Now when I touch the w/g wire to the...
  8. Z

    Is there an adjustment on kill switch

    My boat used to stall when putting it in hear. Now the boats not getting out of the gear I am putting it in after we adjusted the lower shift cable. Is there any other adjustments beside the brass cylinder that could be adjusted? I think the kill switch is not activating
  9. Z

    Michigan Wheel vs Solas Amita prop

    I need to buy a new prop and I am not sure which prop is better. I can get them for about the same price. Any recommendations on that? http://boatpropellers.iboats.com/Mercruiser/165_-_190_HP_(All_Years)_19.00-Pitch_Amita_1511-145-19_Propeller/438/18148/?*******=022696581...
  10. Z

    Question about Temperature gauge

    I got the boat in the driveway and I do not have a temp reading on the gauge after the engine warms up with muffs. Is there a test besides continuity that I can run to test if its the gauge or wire? I see a white wire coming off one terminal on the back, and I think a purple one (light maybe)...
  11. Z

    Two product questions

    1) What is a good fixed mount VHF radio for a good price that you recommend? I found some "HORIZON" top rated radios for abuot $150. Never heard of that brand. 2) Any good products to put on tarps to help bead water?
  12. Z

    Not getting Spark on MCM170 Alpha 1

    Ok, now that I am not getting spark, I have a few questions. The engine is cranking but not starting. I placed a spark plug out on metal but not getting a spark. I checked the points under the cap but I do not have spark either. I am getting 4V continually on the coil (+). When I crank it drops...
  13. Z

    Need help with slave/starter solenoid

    See picture. I am not getting spark and I found two solenoids on the boat in the starting circuit. I have a feeling the slave is not hooked up right. Why do I have 3 grounds? It ran last year though and nothing changed to my knowledge?? Left side runs to neg battery Left front runs to...
  14. Z

    Can't seem to find a place to buy shift interrupt switch

    Re: Can't seem to find a place to buy shift interrupt switch Uh I think its the starter one. And the switch does work, as i was able to verify by using a continuity meter. I still wish to replace if I can due to it melting through. Is the lower shift cable easy to replace? It seems like it...
  15. Z

    Can't seem to find a place to buy shift interrupt switch

    I am trying to figure out what is causing my boat to stall when putting it in gear, and I noticed my shift interrupt switch has two wires coming out of it. One is practically melted through and may be shorting. i made some adjustments to my lower shift cable, as it wasn't fully catching in...
  16. Z

    Where can I find the lower shift cable / interupt switch?

    Hey guys, I started a thread last year about my issue of the boat stalling when I go to put it in gear, and I was told to check the lower shift cable or the shift interrupt switch to see if it moves freely or if its worn out. I found some stuff in the manual of what it looks like, but not...
  17. Z

    Stalling when putting into gear?

    Hey guys, I bought an 1985 Imperial last year and had it out 3 times before winter hit. Next spring I am going to tackle the only problem that I noticed. When I go to put it in gear (forward or reverse), it likes to stall out. This is after its been running for 10 minutes too. The colder it is...
  18. Z

    How to winterize 470 IO 170hp

    I am winterizing the boat for the first time and need to make sure I do not forget anything. I assume just run antifreeze through the watermuffs and then drain the exchanger? I already put stable in the gas.
  19. Z

    [Resolved] anyone got a picture of their Mercruiser Alpha One?

    I am new to boating (owning my own that is) and I just bought an 85 Imperial 170HP I/O. I noticed my gas vent must be clogged so I took the engine cover off to troubleshoot it. While down there, I noticed some hoses that are disconnected. I ordered a Selic manual but who knows how long it will...
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