View Full Version : Technical Discussion
- blown piston (16 replies)
- poppet valve (3 replies)
- Looking for the MERC ECU ? serial #'s info web site (2 replies)
- Merc power trim fluid ? (0 replies)
- a-26 ecu Question (1 replies)
- rev limter? (2 replies)
- Set Up Help Please!!!!!!!!!! (2 replies)
- DDT manual (8 replies)
- do i need new ecu? (2 replies)
- 225 optimax dyno results??? (6 replies)
- Help With Allison Xr2002 Prop (21 replies)
- Service bulletins 250xs Injectors? (4 replies)
- Blown motor - need help! (13 replies)
- 300x Real lazy under 2,000 - 2500 RPM's (5 replies)
- CLE Impeller ? (2 replies)
- CLE Question (3 replies)
- 200 efi (2 replies)
- Bonding Bob's torque tab? (16 replies)
- Found this in my Opti intake...what is it. (4 replies)
- SSM's (4 replies)
- Water Pressure gauge tubing (2 replies)
- trim pump (0 replies)
- ? about frnt half on a 2.5L (7 replies)
- Going from a 245 Carb to 260 EFI (2 replies)
- 2.0L pistons (0 replies)
- whats carbs do i have (5 replies)
- have question about lower units (3 replies)
- Water pick ups!!! (3 replies)
- 2.4 cyl & piston clearance (4 replies)
- 2005 300x questions (13 replies)
- Mercury 2.0 Cooling Question (7 replies)
- 26' phantom (0 replies)
- Merc serial number (4 replies)
- ECU question 2.4 Bridgeport (2 replies)
- TPI 2.4 bridgeport (1 replies)
- 40 johnson (1 replies)
- 7 Reed intakes on Mercs??? (5 replies)
- A-26 ecu,Does anyone know about this ecu (0 replies)
- Rocker Switch (3 replies)
- Jack plate for twins? Paralift? (28 replies)
- 1959 glasspar G3: need advice on setup (18 replies)
- Merc tilt tube (4 replies)
- Increase power, 95 200 XRI (9 replies)
- 2.5 mariner ? (2 replies)
- Which oil to use in Mercury trim pump? (1 replies)
- Optimax help needed (2 replies)
- imco hydraulic steering for outbaords.. (2 replies)
- shave heads on 2.5 200 carb? (3 replies)
- engine over heating (4 replies)
- Merc 225, 3.0l carb starting question. (1 replies)
- Difference between 2.4 and 2.5 200hp tuners (5 replies)
- 99 200 opti bad idle (4 replies)
- Scratch in bore after 6 hours.. (0 replies)
- hydraulic fluid????? (1 replies)
- 99 yamaha 250 efi (5 replies)
- fuel (2 replies)
- Starting help 300X (21 replies)
- e-tec 225 h.o. (58 replies)
- Bobs Nosecone....Low Water pressure..WHY?? (5 replies)
- 300xs rev limiter (8 replies)
- Best EGT's? (2 replies)
- carbs. (0 replies)
- Looper Mods Finnally Getting Done! (5 replies)
- Help with Force 125 Tilt / Trim (3 replies)
- Detwiler hydraulic pump ? (2 replies)
- (HELP) please read(Sportmaster gearcase lost forward???) (0 replies)
- prop work (8 replies)
- Poppet Leaking.... (2 replies)
- need a guess on weight!! (1 replies)
- 2.4 stock jetting T REX????? (6 replies)
- increase power in I6 (9 replies)
- Which props will fit Johnson 140hp four stroke (3 replies)
- timing 2.4 bridgeport (1 replies)
- Honda OB mods (0 replies)
- 2 year old fuel / Need to Add new Fuel (8 replies)
- 2000 2.5 200 EFI Surging Mid-range (1 replies)
- yamaha ox66 250 (0 replies)
- Dry Weight? (6 replies)
- RPM Range??? (1 replies)
- Prop...small shaft or large shaft merc? (6 replies)
- Evinrude 225 2001 Ficht (0 replies)
- Is this sound normal? 1990 OMC XP200 (7 replies)
- Fuel Pressure (44 replies)
- drive shaft resplining (5 replies)
- ANY TRUTH??? 225 Opti MAX Saltwater 2001 (3 replies)
- 2.0 Heads On A 2.4 (2 replies)
- maybe someone knows (6 replies)
- exhaust questions (23 replies)
- Any info on 22' sonic sportster with outboard (0 replies)
- 2.0, 2.4, 2.5 motor mounts...they all the same? (2 replies)
- 96 or 99 merc 200 efi (4 replies)
- Quicksilver impellers (5 replies)
- Thick Head Gaskets? (2 replies)
- Alarm Wiring (4 replies)
- Compression at 150 - need more then pump gas? (12 replies)
- johnson outboard lower unit oil (8 replies)
- 2.5 Promax/2.5 150 question (2 replies)
- Looking for tiller bolt for my OMC Looper. Need to buy steering arm?? (1 replies)
- 26p Cleaver 4 Blade on a 3.0L OMC on a stoker. (1 replies)
- Laser EFI Gurus-Help! (26 replies)
- Nwe Water Impeller didnt spin? (9 replies)
- Looper cooling question (90 XP200) (8 replies)
- Help - Allison Hydrofoil (2 replies)
- Help with my shifting problem (10 replies)
- 2.4 offshore (1 replies)
- 300x problems (24 replies)
- OMC 140, Need a measurement please (2 replies)
- factory remanufactured merc (3 replies)
- Yamaha Help needed (3 replies)
- run dry Impeller (6 replies)
- mercury remanufactured outboards (2 replies)
- stock merc. 2.4 200hp questions.... (11 replies)
- OMC V4 compression numbers (1 replies)
- how much horsepower and torque do I have now? (14 replies)
- modified rod slots (0 replies)
- Merc temp sensor question (1 replies)
- 94 regal rush 90hp sportjet probs (2 replies)
- 0mc Idle Timming (0 replies)
- 2.5 260 hp regulator? (3 replies)
- best nose cone (5 replies)
- Yamaha Conversion (2 replies)
- Baja 40 Outlaw SST (5 replies)
- 1978 175 Suggestions? (0 replies)
- gps speedometer antenna (8 replies)
- Brucato PCu enrichment Question (10 replies)
- Blenzall (1 replies)
- F1 2.5 mercury 260 hp 1995 fuel oil mixture (5 replies)
- 15 in or 20 in mid (9 replies)
- 2.4 Bridgeport, need help PLEASE!!! (79 replies)
- Battery Drain Question (12 replies)
- 200xs compresor (2 replies)
- engine hight problem (3 replies)
- Marine Machine Steering Issue (25 replies)
- Mechanical Steering NFB (1 replies)
- johnson thermostats (0 replies)
- Merc V-6 Starter? (5 replies)
- fuel tank vent (2 replies)
- How bad did I get ripped off??????? (16 replies)
- Another Steering Question??? (3 replies)
- V8 Johnson sounds alarm (9 replies)
- 225 opti max Alarm Indicator (0 replies)
- jets (8 replies)
- 200 Efi (23 replies)
- Left-Hand flywheel (1 replies)
- 300 ProMax??? (2 replies)
- powerhead base gasket (2 replies)
- Low Water Pressure (1 replies)
- Best Set Up For 22' Sonic Sportster (0 replies)
- What gas (27 replies)
- Merc 3.0 225 hose routing question (4 replies)
- 97 gtx sea doo dropping rpm (0 replies)
- V-4 Yamaha Comp. (2 replies)
- 225 Opti Max's 2001 / Smart Guage "alm" (1 replies)
- Trim Tab in my way (3 replies)
- Lower unit repeatedly jumps out of gear in reverse (12 replies)
- trim pump (1 replies)
- All in favor of premixing say I (37 replies)
- 2.5 merc (1 replies)
- Merc 250 EFI Trim Indicator Adjustment (0 replies)
- OMC V-4 Head Pics (13 replies)
- Yamaha Wiring Color Question (5 replies)
- Sport Master keeps coming loose (37 replies)
- Hi-Jacker Fixed Jack Plate (4 replies)
- hole in #5 on three liter (1 replies)
- Increase 150 Johnson HP (9 replies)
- 3.0 misses at idle (3 replies)
- Omc Power Pack drill sheet (27 replies)
- H2O press ? (2 replies)
- large tooth ring gears (0 replies)
- 2.4 on a 2.5 exhaust plate (7 replies)
- 2.4/2.5 cranks (5 replies)
- Bolts holding on a '78 merc (3 replies)
- johnson 150 vro 1994 (5 replies)
- steering helm (7 replies)
- Mercury V6 Big End Bearings (1 replies)
- Need Help with 150, 2001 to 200 2005 conversion (3 replies)
- need a mechanic in NY having problems with 280ss! (6 replies)
- Need help 260 cowling won't fit ?? (11 replies)
- Lubricant capacities (0 replies)
- Livorsi temp guage(dual bank) EGT? (3 replies)
- Yamaha 36mm Carbs (3 replies)
- 200xs vs 2.5xs (3 replies)
- 1500 carb question (1 replies)
- high water pressure at idle (1 replies)
- stern power drives (2 replies)
- 200 efi vacuum hose connections (0 replies)
- front half (0 replies)
- johnson h2o pressure gauge (8 replies)
- Flo torque hub stuck (2 replies)
- 94 2.5 rebuild ? (3 replies)
- horsepower,2.5-280 to 300x (5 replies)
- Pro Marine Bearing Carrier Spanner Nut (4 replies)
- 2.5 merc crank (0 replies)
- Left handed controls (5 replies)
- Monty Racing and can 90 GT 175 Heads be milled? (11 replies)
- Overheating at 5000 rpm or over hard too idle sounds sick mercury 150 (22 replies)
- Merc 150 serial # (5 replies)
- Chrome bore port timing (14 replies)
- Mercury Manuals (1 replies)
- Solid or Stock motor mounts (4 replies)
- sealer (1 replies)
- Nosecone on a 73-76 V4 OMC (10 replies)
- Will a 90's looper powerhead bolt up on an '89 GT175 crossflow mid? (3 replies)
- hydrostream vector (3 replies)
- hydrostream vector (10 replies)
- 40hp mercury modds.?? (3 replies)
- Looper Carbs (4 replies)
- Merc WH41 Carbs on a 1989 135 2.0 (8 replies)
- Blow-out Ring (7 replies)
- Jackplate (12 replies)
- Merc Poppet Valve Discharge Line (9 replies)
- Used a Magnet Used to Pickup Connecting Rod Bearings (12 replies)
- ?? about powerhead interchanging 1982 merc 200 (11 replies)
- Prop insert help (6 replies)
- Weight of a 12" mid (11 replies)
- Help, 3.0L Merc water pressure too high (10 replies)
- Need serial # (0 replies)
- How much is too much (23 replies)
- 300 verados (12 replies)
- Can I switch batteries while running? (14 replies)
- Dual Opposed Rotary Steering? (1 replies)
- What is this called? (12 replies)
- H20 pressure gauge tubing/fitting (12 replies)
- Looking to get more power out of a promax 300x (3 replies)
- Where to get a service and parts manual (1 replies)
- Steel sleeve bridgeport, needs heat (10 replies)
- Blueprinting hull (29 replies)
- Yamaha 2.6L connecting rod question. (0 replies)
- Evinrude Parts (1 replies)
- 225 Opti compression numbers and removing bottom plugs? (1 replies)
- Lloyd Burns (0 replies)
- 78 merc trim pump info (0 replies)
- Where do you buy engine parts? (4 replies)
- 2.5 200 question (8 replies)
- how about it JRSE (52 replies)
- 1974 Merc 1500 questions (20 replies)
- 6 two barrel 2.4 (2 replies)
- Oil mixture ratio (11 replies)
- Yamaha V Max (3 replies)
- Boggying Down (2 replies)
- SN check (5 replies)
- 20" to 25" conversion questions (8 replies)
- Pro Et (4 replies)
- Yamaha Heat Horn Only At High RPM's? (3 replies)
- 2.5 rod ?? (2 replies)
- Carbed 260 (15 replies)
- New Prop (0 replies)
- what plugs to use with a 01 280ss? (2 replies)
- Lefty lower shifts Wrong??? (25 replies)
- proppeller slip? (15 replies)
Powered by vBulletin® Version 4.2.3 Copyright © 2026 vBulletin Solutions, Inc. All rights reserved.