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  1. J

    Issue after coupler install

    Hello, I’ve got an 88 Marlin w 4.3 Alpha 1.... Had a guy replace my coupler recently which went well aside from the following issue.. I lost power to my bilge pump, exhaust fan, trim gauge, gas gauge, and stern and bow lights... The mechanic is an hour plus away and he tried to describe what he...
  2. J

    engine coupler

    coupler issues 1988 Marlin 4.3 with Alpha one....i'm about 90% sure my coupler is cooked. I took it to a local guy who verified that the drive was shifting and the upper gear set on the drive was ok. During our discussion he gave me a quote for a new coupler (about $1200). The funny part is he...
  3. J

    1988 Marlin, 4.3 Mercruiser, 2 bbl carb'd cold start issue

    I've got a cold start issue that started recently. After a bit of research it seems it's fairly common. After a week or so sitting idle in my garage the motor takes a while to start. I'm not seeing a good stream of gas while priming the carb. The boat will eventually start but it takes of bit of...
  4. J

    1988 Marlin open bow with 4.3 Merc/2 bbl carb idle issue

    Hello, so I took my boat out for the first time this year. Ran great from the dock, idled around the lake, up on plane for a while. Ran it WOT for a bit, 4500 rpm, around 42 mph, trimmed up. Things were going well, very happy. So we're idling around the lake at around 800 RPM and all of a sudden...
  5. J

    Merc Alpha 1 gasket kit

    Is there any variation in the alpha one gasket kits. Referring to the kit that contains the transom gasket and a variety of O rings. I tried to order one through IBOATS and was informed that I needed the serial number from the drive. I can't see the serial number because it's really faded. I'm...
  6. J

    Merc Alpha 1 removal worries

    So this is the end of the second season since I've had my boat. It's an 88 Marlin with the 4.3 Merc and Alpha 1 drive. It's been a great boat, etc.. I have no idea when the last time the drive was off so I decided to pull it and take a look around with the intention of storing it off the boat...
  7. J

    sticky electric choke plate/butterfly

    Hello, I've got an 88 Marlin, 4.3 alpha 1 with a 2 barrel Mercarb..I adjusted the electric choke last year and have had no issues up until now. The last couple times out the choke will set properly when I pump the throttle. On start up it will start fine but becomes too rich quick. The butterfly...
  8. J

    2006 Four Winns 5.7 volvo penta

    So this is my buddy's boat and I told him that I would ask you guys about it. Says he was zipping along the lake at prob 3/4 throttle and then all of sudden he lost power. Said he came to a stop and didn't have forward or reverse. He said no funny noises, rubber smell, vibrations etc..He said it...
  9. J

    1988 Marlin 4.3 alpha 1

    Hello, I'm having a bit of an issue with my boat.. I've been chasing down a low WOT, not bad but I'm at 4500 rpm with a 17 pitch prop.. So I pulled the fuel filter from the carb inlet and reinstalled.. Got to the lake last night and the boat ran like garbage, wouldn't idle, etc.. The only thing...
  10. J

    Will this prop work

    My brother gave me a prop he found in his boathouse that the previous owner left behind... It's a "Michigan" 14 1/2 x 17 RH stainless steel SSM 247-C I have an 88 Marlin open bow with Merc 4.3, alpha 1... Prop looks great, wondering if it would be a good fit for my boat Thing is heavier than my...
  11. J

    trim pump wouldn't shut off

    1988 Marlin open bow, 4.3 L Mercruiser... So we put the boat in yesterday, get underway from the dock and I lower the drive all the way down. I start cruising away from the dock and can hear some strange noise, like a pump running. After a brief look around I realized that the trim pump was...
  12. J

    1988 4.3 Merc 2bbl carb issue

    I just realized why my electric choke isn't closing. The top of the carb where the butterfly plate opens and closes is out of round. I would rather not buy a new carb so I would ask for any suggestions you guys may have.
  13. J

    Carb choke position

    1988 Marlin w 4.3 Merc 2 bbl carb.. This is my first I/O so I'm a bit of a newbie. Winterized today and when I started the engine on muffs I thought I set the choke but after I started ( took a minute) I noticed the butterfly was vertical... Does the key have to be on to set the choke? It felt...
  14. J

    Boat weight

    Newbie question..any guesstimates on the weight of a 1988 Marlin open bow , 4.3 i/o and shore lander trailer??
  15. J

    What is it worth?

    1988 18' Marlin open bow... 4.3 Mercruiser Very clean , one owner... Owner asking $4400 Any thoughts??
  16. J

    1983 Four Winns with Mercruiser I6

    Hello, I'm new to the boating world and would appreciate some opinions... I'm looking to buy an 83 Four Winns open bow with the above engine etc.. The boat is a bit rough but likely will clean up ok... I've heard good things about the engine.. I'm a little concerned because the boat has sat...
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