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  1. K

    Mercruiser 5.7 shuts off when idling when warm

    That’s fine, you release it when engine is cold and you add throttle I had same question in the past regarding this screw and the friction, guys explained that to me: Thread 'Mercarb idle speed screw and adjustment' https://forums.iboats.com/threads/mercarb-idle-speed-screw-and-adjustment.745271/
  2. K

    Running rough when cold, helping to diagnose the problem with Mercarb

    Today i have also noticed while exiting Marina, no wake zone after approx 5 min of idling when adding power at 2500rpms it Bogged for a sec then runs fine... flooding??
  3. K

    Running rough when cold, helping to diagnose the problem with Mercarb

    Hello again, the cold days just arrived for few days and the problem came back... As You know Im after carb rebuilt, boat runs great when cold, hot etc.. idle + mixture adjusted but.. Boat sit 1 week in the dock, started immidiately but when i dont keep 1000-1500rpms but put it on idle the...
  4. K

    Merc 4.3L - Wiring and Idle Adjustment

    Black wire looks like ground for the choke, I’ve got similar engine and did all the adjustments with help from guys from forum.
  5. K

    Mercury Alpha One Gen II Upper Gear repair

    Can you make a photos from this job?thns
  6. K

    What to check / replace on a boat ?

    Yes I keep my drive always down, only for trailering to the water but it takes 20 minutes only I also spray silicone on the bellows for the winter .
  7. K

    What to check / replace on a boat ?

    I dont know, how to check it? Regarding Bellows, I havent touched it yet but I think it looks descent so far
  8. K

    What to check / replace on a boat ?

    Yes, cleaned every post season
  9. K

    What to check / replace on a boat ?

    Hello again, Ive got Mercruiser 4.3 carbed from 2005, i have this boat since 2017. I’m wondering what more maintenance action, checks I should do Since that time I’ve replaced impeller, thermostat, starter solenoid, new spark plugs every year, rotor, alignment checked and stem new ujoints...
  10. K

    Missing timing tab? Merc 4.3 2005

    Thanks all, easy topic but we had a nice conversation. I’m happy. But what’s interesting that both engines are turning the same rotation but the indications are different depending on the type of timing marking.
  11. K

    Missing timing tab? Merc 4.3 2005

    Regarding my serial number in mercruiser catalog I have the proper sticker on the pulley. 8M0071530 DECAL, Timing X Notes for Part Number 8M0071530 This part has been superceded from part number 864250 Superceded parts are the latest functional replacements for the original...
  12. K

    Missing timing tab? Merc 4.3 2005

    Chris ive the implest timing lamp with rotary knob when you can set the timing from 0-60*
  13. K

    Missing timing tab? Merc 4.3 2005

    Sorry I mean the tachometer... i tought i dont have the timing tape but it was there. From 0 to the right its Btdc Or Atdc?
  14. K

    Missing timing tab? Merc 4.3 2005

    Ok bought the adjustable light, but dont have the idle speed function in it. Heres the screenshot from the video I made, I think the timing is correct, it shows 10* maybe 11 but i can be also the error of the angle
  15. K

    Mercarb idle speed screw and adjustment

    Thank You I owe You a beer! Please tell me how I can thank You for your help ? I was wondering if they are a little bit lean, you said in your posts to be on the richer side (safer) so dont know what to do now but Im rookie and Wish to get the advice from more experienced guys
  16. K

    Mercarb idle speed screw and adjustment

    Hello Chris again, Setting Base Timing mode, it’s around 10* BTDC. Set the rpms @ 580rpms @ forward idle, the Turned mixture CW till Engine rumbles, Then CCW until highest I have reached highest RPM. I hope it’s the right spot. Here are my plugs no3 and 4 after 2 hours of use : what do you...
  17. K

    Atwood float switch issue

    Hello boaters, I have a question regarding bilge pump, ive got Atwood bilge pump with float switch but it doesnt work at all, when i pull it by hand it works but the water doesnt engage it... Looks like water doesnt have enough force to raise it, do you think greasing the pivot points can help ??
  18. K

    Mercarb idle speed screw and adjustment

    Ok I will monitor the RPMs on the tacho, ive got the laser one the one on the boat overreads around 100rpms @ idle And ofcourse all the settings, idle , mixture with unhooked throttle cable at carb?
  19. K

    Mercarb idle speed screw and adjustment

    Got it, but why turning CCW (reachin) there is almost no response???
  20. K

    Mercarb idle speed screw and adjustment

    Passages are for sure clean and drained. ok I’ll go back, try to lean the engine, the. 1-2 turns and check the plug. Thank you. is there any procedure maybe? Looking for the peak in RPMs?
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