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  1. Q

    New Motor same power issue

    You’re either having timing issues or fuel issues. Be almost sure of it. Perhaps even both.
  2. Q

    1995 Skeeter ss140 - 135 Mercury Black Max G179207 Constant Alarm

    Definitely. Go for it. All the best.
  3. Q

    4.2 Turbo Diesel

    Is the engine stone cold there ? If so..might just be the usual cummins VM cold diesel knock.
  4. Q

    Low voltage to fuel pump relay

    You might find that you may just be chasing rainbows with the 1volt reading there. May just find that you have 1v there residual with nothing powered up. Just thought I’d mention it. You checked the basics and usual obvious things…like wiring around the ignition system or kill/safety wiring...
  5. Q

    over fueling at idle

    Maybe I’m being silly here. But are you sure that’s not emulsified oil coming up there ? Or maybe even as a result of a poor breather pipe work function ? How’s the IAC function and fixtures?
  6. Q

    Mercruiser 140, MR outdrive - unidentified fastener

    That’s from a skin fitting or wiring grommet. Often used to run or create a conduit through way for cables or similar. Perhaps outlets for something too. Found on deck, transoms, dash, bulkheads or similar. Transom transducer wiring conduit may be an example (rightly or wrongly) Apologies...
  7. Q

    Mercruiser 140, MR outdrive - unidentified fastener

    That’s a grommet fitting. Sometimes used to run cables or wiring through transom (rightly or wrongly), bulkhead, deck or dash. A conduit through way for a depth transducer perhaos may be an example.
  8. Q

    Mercruiser 4.3 MPI 262 CID s#1A34694Z NOT IDLING CORRECTLY SOMETIMES

    Sure sounds like you’re picking up crap at the pick up pipe. I’d take the hose off the filter housing or from the pick up…then dip it into a can of fresh fuel. Rule things out. Listen to the sound of the pump when key turned too. You can hear if it’s primed with fuel or if it’s struggling...
  9. Q

    1995 Skeeter ss140 - 135 Mercury Black Max G179207 Constant Alarm

    Hi. Can’t urge you enough to just do away with that system and pre mix. Coming from a guy who learned the expensive and hard way. And not a guy who just has all encompassing thoughts on doing away with all injection systems on all engines. Some work well when looked after. But these in...
  10. Q

    1988 Force 125 HP outboard prop selection

    If you’re getting 4000 rpm and not planing…we need to have a good think about what’s going on perhaps. The alpha prop won’t fit your gearbox on the force. The force has the smaller gearcase. Props for mercury 2 stroke outboards around the 75-125hp range (generally but not exclusively…) will be...
  11. Q

    Might this work as a backup?

    Interesting reading there. I have the same engine on one of my boats. Great engines. Also the CT I have. Some details from the props I run or have ran on mine. 19ft deep v cuddy 19” tempest plus 43mph consistently achieved @6000-6100rpm. Occasionally just touching 44mph 20” enertia 45mph...
  12. Q

    Might this work as a backup?

    Hold all thoughts a wee minute perhaps. Hope you don’t mind me interrupting things…but the prop geek in me has alarm bells ringing here. If we are thinking that the prop is a 15” pitch…on a Yamaha 200hp, fitted to a 20ft boat doing 50mph…there is absolutely and certainly one or more of the...
  13. Q

    Only goes 20 MPH

    That’s what I thought Scott. But my confused state, perhaps came from the reply to my post earlier, perhaps suggesting that the boat hasn’t been in the water since. My conflicting thoughts came from the suggestion that it wasn’t going over 20mph in the first post…making me assume it has been...
  14. Q

    Only goes 20 MPH

    Hi. Reading this on my phone. Apologies for the ignorance. But you mind telling me again what exactly is the issue. Maybe we have moved on from the original post detail. No doubt. Can I ask a couple of things ? So from the response you gave me earlier there….have you not actually had the boat...
  15. Q

    Dribble of oil at prop, usual suspects checked, now puzzled

    Is it not just digging oil coming out ? That’s congealed in the exhaust ? Quite common on first start up on a trailer I’d say.
  16. Q

    7.4 flame arrestor to KN

    Always found things like this fascinating. Great to hear real world stuff like this. I can and have seen the benefits of these things over paper elements filters. But can’t imagine any benefit over what is essentially very similar, with the usual flame arrestor mesh on most mercruiser. Have it...
  17. Q

    Any idea which drive this is?

    Looks like the very early aquamatic model. Was a couple of terms for them. 100’s might be one of them. But there was one before or called something else too.
  18. Q

    7.4 flame arrestor to KN

    Hi. Perhaps wise to be aware that there are a few versions of the 7.4. Only a couple of them will benefit from such a thing, I’d think. Certainly if she’s a carb…can’t see the benefit there at all. Some of the mpi and higher output with the front entry intake…I can get that. They do look...
  19. Q

    fuel problem...helpppp??

    As above. And check the function of the tks mechanism/solenoid
  20. Q

    Only goes 20 MPH

    Hi. Tell us more about what exactly is happening. Is the engine revving up the rpms well, when in gear…but speed is low and not corresponding to previous behaviour? Or are you struggling for rpms too ? If it’s the former…could you have melted your coupler ? Does it feel like something is...
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