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Updated 7/28/23

Click on motor size below for details and pricing.
Small
                                      outboards
25-35
                                      hp motors
40-50hp
                                      motors
60-70hp
                                      motors
v4
V6 motors 150-225HP
controls & accessories

Operator Manuals & Notices Located at Bottom of Page (click here)



Click here for details about what is done to motors prior to sale.

PAYMENT TYPES ACCEPTED
  • Cash or credit (4% fee for credit payments)
  • NO checks
  • Small non-refundable deposit required to hold motors (applied to final sale).
square payments


Test Running a 35hp motor for a customer with remote set up on a 13' early 80's Boston Whaler.  We hit 32MPH easily.  Featured is optional Panther Power Trim which makes a big difference in performance!  Great motors with enough power to plane a loaded boat.

32 cubic inch 20-35HP motors (1977-2006) rival the popularity of the 9.9/15hp motors produced over 3 decades.  Big brothers to their smaller counterparts, they are widely recognized as bulletproof workhorses.  The design of these motors (particularly the block internals) remained fairly similar over their 3 decades of production.  Commonly used on Boston Whalers, and aluminum hulls, they offer power with simplicity & ruggedness of components.  All models are detuned 35hp blocks.  The 20 & 25hp are the same but different carburetors and manifolds, and different porting from the 28-35hp.  The 28, 30, & 35hp motors are the same with changes to the exhaust and gearcase depending on production year.  
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Examples of 20-35hp Motors Sold
Features
Price
a
25

  • Full Gearshift
  • CD Ignition
  • Electric Primer or Choke
  • Battery Charging (Electric motors only)
  • Thru-hub exhaust (more power)
  • Control Panel, Tiller Mount, or remote control kill switch with lanyard
  • Remote Control or Tiller (Hand) Steering Models
  • Shallow Drive Bracket (some models)
  • ~105lbs
  • Electric or Manual Start
  • 50:1 gas to oil
  • Trailering lockout
  • Co-pilot feature
  • Thermostat regulation
  • Inline 2 Cylinder, carbureted

Rigging & installation are mandatory and charged based on parts & labor schedule (approx. 3 hrs labor with misc. parts).  Steering system installation is a separate charge if being updated.


Operator Manual Located at Bottom of Page (click here)

Pricing is for longshaft (20"), remote steering motors.

20/25 HP
(77-84): $1000.00
(85-06): $1250.00
 
28/30/35 HP

(77-06):  $1400.00

Manual Start
add $150.00

Short Shaft (15")
add $150.00

Tiller Steering
add $200.00

Remote Electric Start
add $150.00

Tiller Electric Start
add $250.00



Panther Tilt/Trim
Add $750.00

1 year warrantee
on trim unit only


Here is a video of an '87 50hp short shaft Johnson on a 17' Brockway Skiff (wood boat) using a 12.5 x 15 prop.  RPMs hit 6,000RPM (top end) at WOT with 2 passengers. We hit 30MPH.  2 pitch higher and we would have broken 35MPH.  The motor threw us back in our seats when I dropped the hammer.

40-50hp motors follow the same approach of their smaller counterparts; the 40, 48, & 50 are essentially the same motor.  50 & 48 motors are identical, the 48hp denotation was a marketing ploy to sell 50hp motors without oil injection or power trim at a lower cost, but the same HP output is seen by both. The 40hp motor is a detuned 50hp to create lower power output.  The added feature of these motors is that power tilt/trim is available and the power output affords application to larger vessels and pontoons. These motors are also loopers in design; the are more fuel-economic then conventional cross-flow motors (same original mechanical design as the first outboards produced in the late 1890's).  Many of these motors were produced as they still fell into the "common mans" price range. 
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Examples of 40-50hp Motors Sold
Features
Price
1

50


  • CD Ignition
  • Electric Primer for easier starting
  • Battery Charging System
  • Thru-hub exhaust (more power)
  • 175lbs (add 20lbs for PT/T)
  • Standard electric start
  • Manual tilt/trim, power trim available
  • 50:1 gas to oil
  • Trailering lockout
  • Thermostat regulation
  • Inline 2-Cylinder, carbureted
All motors require 50:1 premix procedures.


Rigging & installation are mandatory and charged based on parts & labor schedule (approx. 3 hrs labor with misc. parts).  Steering system installation is a separate charge if being updated.







50/48hp

(80-88) $1500.00

40hp
(80-88) $1400.00

Short Shaft
Add $400.00



Panther Tilt/Trim
Add $750.00

1 year warrantee
on trim unit only









Here is a 1992 70hp on a 19' aluminum with heavy flooring and a heavy center console build out.  We hit approx. 30MPH.  Customer opted to have a 15hp Johnson kicker motor installed for slow speed trolling too.

70hp motors follow the same approach of their smaller counterparts; the 60 & 70 are essentially the same motor.  The 60hp motor is a detuned 70hp to create lower power output.  Power tilt/trim is available and the power output affords application to larger vessels and heavier pontoons. These motors are loop charged for improved fuel economy.  Moving into this motor class still affords a relatively light motor (approx 240lbs), but produces enough power to move 15-19 foot vessels at comfortable speeds (25-40mph).
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Examples of 70hp Motors Sold
Features
Price
1 3
2



  • CD Ignition
  • Electric Primer System for easier starting
  • Battery Charging
  • Thru-hub exhaust (more power)
  • Power trim/tilt Standard
  • 240lbs
  • 50:1 gas to oil
  • Trailering lockout
  • Thermostat regulation
  • Inline 3-Cylinder, carbureted
  • Post '93 models have QuickStart warm up
All motors require 50:1 premix procedures.



Rigging & installation are mandatory and charged based on parts & labor schedule (approx. 3 hrs labor with misc. parts).  Steering system installation is a separate charge if being updated.






70hp

(80-90) $2400.00

(91-thru) $2700.00







This 90hp Ocean Runner pushed the 20' fiberglass skiff along nicely at around 30mph in the fully lowered trim position.  Trimming up gave another 300 RPM and 3 MPH.

V4 motors began production in the late 1950's and were produced through 2006. As production evolved, they maxed out at 140hp. They were produced as both traditional cross-flow motors and loop-charged for improved fuel economy. These work horses provide power for larger boats and depending on hull design, can be found on vessels as large as 23'.

Just like smaller OMC motors, the larger blocks were detuned to lower output motors. The 88, 90, 100, and 115hp motors are all from the same 'family.' The 120 & 140hp motors are the same block with intake modifications to change power output.
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Examples of V4 Motors Sold
Features
Price

90 a

90b

  • CD Ignition
  • Electric Primer for easier starting
  • Battery Charging
  • Thru-hub exhaust (more power)
  • Power trim/tilt
  • 90/115hp - 300lbs (90 crossflow)
  • 90/115hp - 320lbs (60 looper)
  • 120-140hp - 370lbs (90 looper)
  • 50:1 gas to oil
  • Trailering lockout
  • Thermostat regulation
  • 4-Cylinder V, carbureted 90 or 60 degree models
All motors require 50:1 premix procedures.



Rigging & installation are mandatory and charged based on parts & labor schedule (approx. 3 hrs labor with misc. parts).  Steering system installation is a separate charge if being updated.





90-100hp
(80-87) $2800.00
(88-thru) $3100.00


110/115hp
(80-87) $3000.00
(88-thru) $3300.00



120hp
(80-87) $3200.00
(88-thru) $3500.00


130/140hp
(80-87) $3400.00
(88-thru) $3700.00



Add $300 For
60 Models




This 150hp 60 looper pushed the 19' boat along at 44MPH with a 19 pitch prop, turning 5200 RPM. 

V6 motors began production in the mid 1970's by OMC.  As with all the smaller motors, OMC incorporated their innovations and designs to make these motors perform just as well.  V6's started as crossflow motors but eventually were produced as both loopers and cross flow with a 90 piston and crank configuration.  In the late 1980's the block was redesigned to be 60 and include other features such as an integrated vapor separator.

These motors are widely recognized for having a tremendous amount of torque for getting large vessels up on plane and being work horses.  They are very similar to V4's but simply have larger blocks.  V6's can push boats as large as 28' long when installed and operated properly.

Just like smaller OMC motors, the larger blocks were detuned to lower output motors. The 150, 175 motors are 60 engines, the 200 and 225hp motors are 90 loopers.  There are various speciality versions of these motors such as the Venom and Intruder with special porting or gear ratios to increase the top end performance.  These were usually used by tournament operators; today's motors say H.O., or High Output to indicate a different gear ratio.
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Examples of V6 Motors Sold
Features
Price
150a

    • CD Ignition
    • Electric Primer for easier starting
    • Battery Charging
    • Thru-hub exhaust (more power)
    • Power trim/tilt
    • 150/175hp - 370lbs (60 looper)
    • 150/175hp - 385lbs (90 crossflow)
    • 200/225hp - 450lbs (90 looper)
    • 50:1 gas to oil
    • Trailering lockout
    • Thermostat regulation
    • 6-Cylinder V, carbureted
    • Loop and crossflow, 90 & 60 degree designs
All motors require 50:1 premix procedures.

***Hydraulic steering required for all V6 motors***



Rigging & installation are mandatory and charged based on parts & labor schedule (approx. 3 hrs labor with misc. parts).  Steering system installation is a separate charge if being updated.


150hp
(80-87) $3500.00
(88-thru) $3800.00


175hp
(80-87) $3700.00
(88-thru) $4000.00



200hp
(80-87) $3900.00
(88-thru) $4200.00



225hp
(80-87) $4100.00
(88-thru) $4400.00

Add $300 for
60 models


Controls & Accessories
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Picture
Features
Price


Single Lever, Side Mount Contols



Single Lever, Side Mount Contols
WITH TILT CONTROL



2 Lever, Side Mount Controls
(used on older outboards)

$275.00
Throttle/shift cables & key
harness included.



$550.00 (with trim feature)
Throttle/shift cables, key & trim harness included.   May have new switch & cover.


$175.00

Binnacle Surface Mount Controls

Used in consoles.
$275.00 (no trim)


$550.00 (with trim)
Throttle/shift cables, key & trim harness included.  May include new cover.
OEM control box pricing has risen because they are difficult to source & throttle/shift cables have to be replaced.

Duplicate keys 1976-1996 (#51 - #67)
$14.00

Battery Cables

Marine grade cables of proper
guage required during installation.
$50.00

Steering Link

Connects SeaStar Steering
system to motor.
$65.00
plastic tank
New Tanks & Lines
6-Gallon with guage: $89.00

3-Gallon with guage: $79.00

EPA Compliant Fuel Line
with connectors & primer: $63.00

buckle


Stern Straps
(used to secure boat to trailer, do NOT use home depot ratchet straps!)


4 foot - $30.00

6 foot - $35.00
saver



Transom Saver - High Quality
5 year warrantee

(supports engine and greatly reduces stress on transom, motor mounts, and hydraulics of engine during trailering)

$85.00
All pricing listed on this webpage are subject to change without notice.


Operators Manuals
Horsepower (click for PDF)
Description
4, 6, 7.5/8hp
1980-2004
9.9/15hp
1974-2005
20-35hp
1975-2005
40-60hp (2-cylinder)
1978-2001
60-75hp (3-cylinder)
1978-2001
V4 Crossflow
90-140hp, 1980-1998
V4 90 Loop Charged
120-140hp, 1985-1997
V4 60 Loop Charged
90-115hp, 1992-2005
V6 Crossflow
150-235hp, 1980-1995
V6 90 Loop Charged
200-225hp, 1986-2002
V6 60 Loop Charged
150-175hp, 1991-2005
Propeller Selection Guide
All motors
Motor Service Notice
All motors
Fuel Related Problems
OMC Service Letter Jan 1987
Some pages have been intentially omitted as they contained expired or irrelevant information (I.E. subscriptions, expired contact info, etc).

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603-210-5095 SHIPPING MOTORS NOT AVAILABLE.  2023 Riverside Outboards LLC. All Rights Reserved.