View Full Version : Technical Discussion
- Best high speed prop for an HST?
- Chip Guru's needed
- Gearcase removal
- charging
- New Champion plug, check this out
- DonChicho - looper probe location
- leaking OMC V-4
- Compression on 1990 275 3.4 merc???
- DVA diagram
- no spark merc 500- 1962
- Shift shaft bushing
- Need bleed line schematic for v4 rude!
- Change Prop or Not?
- hey rsty
- HELP! Ignition on2.5 EFI
- PLEASE HELP!!! leak between 2 piece exaust plates
- Merc won't come out of drive.
- Good word about Gearwrenchs
- Question
- Roll(turn) Your Own
- what are the exhaust relief holes good for in two piece plates
- More hp out of a Promax 300
- 2.4 BP fuel rail question
- Early 80's late 70's I-4, and I-6 Merc question(s)
- 1975 Johnson 115 V4 - dropping the Lower Unit
- looking for toyomirage 02
- heads
- Changing gear oil on a CLE
- Old 2.4 cranks
- down housing ?
- top bearing ?
- stock 2.4 powerhead i.d.
- Avgas Octane Rating
- What type of welding rod to use on omc
- Please Do The Math..
- '81 225 merc
- 1975 Johnson 115 V4 - pulling the water pump housing from the shaft
- size of stock mounts
- Magnets won't stay in flywheel????
- carb id
- Gear shift position on gear housing
- 2.0 heads on 2.4
- Pmax H2O pressure
- merc racing tach setting
- Need pics of installed Bobs weld on torque tab
- need help jetting a merc 2.5
- Wiseco .044
- what next?
- A couple reed questions
- 2.4 assembly and break in questions
- Fair price for used heavy flywheel?
- Flapper wheel extension
- oil injection
- ATT. ModVP deck STV owners !!
- carb question
- 2.4 200 rebuild question
- Merc. carb cross reference
- GT300 compression
- Duckbills
- Mercury Reed Cages & Petals - Info Needed for FAQ
- Mercury Heads - Info needed for FAQ
- Merc Factory Regrinds? (inlines)
- Looking For Info On Mirage Boats
- Installing 2.5 Lightweight Cowl
- fuel pressure and idle adjustment
- Baja speed tests
- Mercury Needle Bearings
- How do I keep prop from cavitating during holeshot?
- X-115/GT115 Lower unit info
- Oil Beeper Alarm problem?
- BSFC
- plugging water intake holes
- Removing Bob's nose cone
- Shift funkiness & ....
- Filling power trim on 2.5 Offshore
- Why so many 4 petal reeds for sale?
- 2.4 Thin Gasket
- cherry 2.4 article
- Dual Stage reed Question
- Holley fuel pump problem??
- Latest on tight and binding crank
- Can a 2.0 intake be "cleaned up" with a die grinder?
- spun flywheel ???
- Rectifier
- Machinists: Carbide Drill Question
- Max speed on Garmin GPS
- Fuel pump idiot light?
- Increasing HP in a stock '96 Johnson Venom 200hp
- Merc Serial #'s
- should this happen??
- plugging exhaust relief - omc's
- Difference between hi-po heads and stock - 2.5 Merc.
- Hmmmm??? Prop Question
- Jackplate wedges to correct shaft angle???
- HELP Trim Problems
- Are 35cc heads stock?
- New steering ?
- Toe in or out with twins ??
- Merc. wire harness questions
- How fast is my 1990 21 Cougar? 2.5 Merc MAD EFI injection
- 2.4 BP linkage question
- 2.4 big rods or small
- Question (Fuel)
- Thermal Control Valve needed?
- 112 Rude
- mahles'and rings
- 2.5 Cutting out
- Make My CLE Faster
- Marine wire and color codes ??
- broken rod!
- Made it past 20 hrs on the new 150, now what?
- Carb vs EFI?
- 2.5 245 carb HP curve and prop question
- 80-81 225 piston question
- 260 cowl and drag cowl
- tuner adapter: 1 piece vs. 2
- Re: Please Help revisited
- 2.4 pistons ?
- 2.4 200 #5 skirt galded
- Volocity Sacks(spelling?)
- Anyone got a Raceflex flywheel for a x-flow?
- Merc / Mercruiser Prop Shaft Sizes
- Wiseco's
- Help needed to test trim solenoid
- Oil Inj. Block-off Leaking
- throttle cable - how long?
- purpose of rubber washer on upper mounts
- Spark Plugs!!!
- Head Gasket P/N
- Gear lube for Merc
- fuel octane
- Need Omc Old Style Trim Help!!
- oil inj. removal kits
- Rapid Jack Plates
- Bosch Fuel Pump...
- sportsmaster mods?
- 2.5 245 hp carb motor stock psi on heads
- Removing a steering hub
- jetting a 2.5 245 merc
- flopping flywheel-simon motorsports
- Pro Max cold start question
- Help! 50 hp Honda 4 stroke question
- Dry Sparkplug
- Johnson or ficht oil
- Anybody ever use a Champion QL55 plug
- Primary pickup timing adj.
- OMC hub cooling
- water pump in outboard
- Anyone using a SeaStar steering on a 2.5 Offshore
- 24 merc questions
- Jets for WH-20 in 200 Fishing motor
- Reed cage screws - any advantage to trimming ?
- Offset wrist pins
- Water pressure senders
- Fuel rigging quest. - Again
- What's the scoop on 3.0L Mercs
- OMC & Merc POWER PACKS
- exaust plate leak update
- Help PM 300 False warning alarm
- WTB - Guages (dig. tach and large trim indicator)
- Alum Flywheel
- Water pressure in a 2.4
- help with transom
- omc upper crank cap
- Gasket Goo
- Question for Raceman
- 96 260 problem?
- What feeds fuel/oil to the center mains?
- Tachometer
- Thank You Wayne Taylor!!!! I LOVE my MAD EFI injection system!
- Idle stabilizer
- Leakdown Test!!
- 2.5 280
- Sst45 Gearbox Need Help
- This Piece Of Crap Is Down Again!!
- Temp gauge wiring (can't find my diagrams)
- Sealing
- 1988 Merc 150 XR4 Alarm sounding
- OMC sucks/Merc midsections
- Cable Steering Side Mount on STV?
- max rpms 2002 merc efi?
- got a question on mercs
- How to identify merc ECU?
- Need help with a 115 inline four merc.
- Weight Tower of Power
- Wrist pin bearings
- Promax 150 - Mods worked
- Soapy Water Pump Gasket Leak Test
- Pitch Gauge
- Merc Tach
- need help with prop on 2.4 also water pump
- Water Pressure?
- Two batteries switched?
- Need Advice
- Do I need this
- Gas question
- re-power, re-build
- Chop? What Chop? BLAHAHAHAHAHAHAH
- 2.4 piston ID 101
- connecting rod ?
- Hole Shot, Prop & Tach
- 235 crossblow torque specs
- Engine experts take a look!
- 89 200 zuki
- Water pump shot?
- 280 fuel system
- Low oil sensor - cont. test - how does switch work?
- Horsepower vs RPM???
- OMC exhaust mods
- 21' Starflite owners--Help
- Painting Outboard's
- Fuel return line?
- Project 75MPH Starflight.......
- trim indicaters
- Fuel/water separator
- Optimal EGT for a Promax 300
- Should 4 petal reeds have a gap?
- water leaking ProMax
- Pyrometer Wiring
- question
- Ring question
- 65 hp merc. ?
- ODYSSEY Battery tray
- Crazy Idea???
- putting fresh cross hatch in chrome bore
- Help Petrolium Chemist
- Land & Sea hyd. jackplate position indicator sender?
- Johnson 25hp Question
- How do you disconnect shift shaft on Merc?
- Injector help
- yamaha Question
- Can't get Merc lower unit back on, Help,help help
- Boyesen reed question??
- Timing Check
- Head Gaskets
- 1998 200 venom
- Safe Compression For A Promax
- Im build a boat
- Tach test setup
- will this work?
- checkmate pulsare, how fast?
- Maximus?
- check valves on front 1/2- all suck, no blow?
- sealing rings have rotated into front 1/2 leaving notches
- How much manifold pressure in a top fuel dragster?
- Batteries nearer the bow or in the stern??
- lost my boat key
- please help, fuel pump ?
- merc trim pump???
- Mixing Fuels... Gasoline, Methanol and Nitromethane.
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