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  1. Q

    Mercruiser 4.3 advice on problem

    Hi all...been a while since I had a 4.3 or a carb. This relates to a friends new boat. Its a maxum 19 foot bowrider with a carb 4.3. ‘99 vintage. Been sittting unused for a while and not used much before. I’ve only looked at it briefly when the engine wouldn’t run right. Told him to check for...
  2. Q

    Going to an Enertia. Just need to be sure

    guys fully aware I’ve bored you all with this before, but spring is nearly here and I’m defo going for the Enertia prop. Just need to know how it will affect the revs over a ballistic or a laser 2 really aimed at guys like Jimmbo (I know he has one) and the usual experts. But all opinions...
  3. Q

    2003 Maxum 2400 cuddy opinions

    hi guys. So lots going on as we near the season. One friend just bought a boat (trying to set that up right, see prop section) and the other has just sold his trusty old Sealine and seriously considering the above titled. The boat has a 350 mpi coupled to a bravo 3 with 26” Props. Fresh water...
  4. Q

    Maxum 1900sr open bow 4.3 Vortec prop

    Hi guys...looking for opinions or real life experience from others with the same boat as above. Ill start by saying I’m not clueless about prop set up, as many will know, but would like to hear real life experience with the above or very similar boat. This is a friends boat we just picked up...
  5. Q

    LS3 6.2 transplant

    So being from the UK and not too familiar with the US engines and automotive industry....and there is likely a good answer to my question, but; why dont people drop in an LS3 6.2l 500hp engine in as a direct replacement to their short block 5.0, 5.7 and 6.2 mpi engines ? Am I right in thinking...
  6. Q

    Never ending thirst for more speed

    Is there such a thing as a low profile gear case with low water pick up for the alpha one ? I might be getting a trade in deal for a 6.2 and would like to stick with the alpha. She already runs a bit hot with the current engine flat out. Just because of the lift she has out the water.
  7. Q

    Just had a thought.....tell me I?m daft.

    So.... I?m sitting here with a glass of wine after an artic day out on the jet ski....and thinking about the spark plugs I?ve went through during the run in period with heavy oil to fuel ratio....and a question came into my head. Can spark plugs be Ultra sonically cleaned ? Perhaps this is...
  8. Q

    Seeking advice on old 65 hp 2 stroke Suz

    Hi I have the chance of a cheap winter project... Wee speedboat with what I think is a late 80?s DT65 2 stroke. The chap is selling it cheap and is not a technical guy but tells me the power trim needs bleeding. He claims or seems to think the vent screw is only accessible by removing the...
  9. Q

    Loose engine mount found !

    Whilst firing some anti freeze in the engine today and checking for proof on the side of the block, I noticed the port fwd engine mount but was not only loose, but half way up the thread with the spring washer hanging in the breeze ! Slightly worried now...guess I need to check the alignment ??
  10. Q

    What size starting battery is standard ?

    Guys The manual might be able to tell me, but it?s not to hand. What size (AH and CCA) battery are most using to start their small block v8?s ? Mine seems very small in size, but seems to do the job. It?s a 85ah and can?t remember the CCA, but it is purely a starting battery.
  11. Q

    Prop slip improvement as speed increases

    Ok...so it?s late over the pond here in the UK and I?ve had a few beers. Added to this, I?d imagine there is a simple explanation for my question and I realise I could probably find the answer in a more sober state, but hopefully someone can answer this quickly... At cruising speeds I have a...
  12. Q

    Arrggg...bloody blue drain plugs !

    Can someone please tell me what witchcraft is at work with regards to the Merc blue drain plugs ? I have one on the T Stat. Every spring I tighten it just less than hand tight....and every winter it magically seems to have accumulated a torque tighten figure of unimaginable quantity. Enevitably...
  13. Q

    Coniston records week

    Guys, if you have 5 mins, check out some of the records broken (national and world) at Lake coniston this week. The mighty Silverline smashed the world record for immersed propeller class An F4 boat managed 81mph with a 60hp ! The world record was also broken for a Rib too. Amazing stuff over...
  14. Q

    Cheapest way to go boating ?

    Bit of end of season nonesense ! Picture of my most fuel efficient day out.....what's yours been ?
  15. Q

    Oh my days....uk forum and smart arses!

    Ok guys...looking for some back up here... On a uk forum..a totally inexperienced fellow asked advice on his boat. He stated that his inboard displacement shaft drive boat had 400hrs on her and he had no record of anyone changing the shaft packing. He hadn't done it either in his owner ship. He...
  16. Q

    Evinrude HO outboards and HP

    Ok...on a light hearted note...whilst these new HO big horse power engines look great and I'm a big fan of 2 strokes.... I don't get the whole 150hp HO (that actually produces 200hp), the 200hp HO (that actually produces 250hp) and the 250hp HO (that actually produces 300hp). Why ? Why not just...
  17. Q

    2 stroke marine engine top end break in oil mix

    Hi guys In general, whether it be Mercury, yamaha, jet ski or other...and given the oil injection system is still in use.. What should I mix the tank with for the top end break in procedure ? Was thinking for starters, a tank full @60l at 100/1 or maybe less ? Then follow the usual breaking up...
  18. Q

    Huge loss of speed over the season !

    Crazy how much the boat has slowed down since her highly polished launch early season. Used to Rev to 5000rpm or just over ! Refuse to antifoul her. Look at the colour of the hull and the growth on it !
  19. Q

    4th propeller....excessive ?

    Ok, so on my constant search for prop perfection, I e decided to take the plunge and order an enertia prop. Is it possible to have too many props ? Should I trade in the laser 2 ? Can't bare the thought of it.
  20. Q

    Yam GP800r initial thought are needs rebuild !

    Bit of history... Not had it long..was running great first few times. 112kph on the speedo (58mph real speed gps) Next few times out started surging at top end. Would give the full beans sometimes and sometimes hold back and only do 90kph on speedo and dropped about 400 rpm. Next and time...
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