Specifications

194
Engine & Steering Controls
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2-Line Compact Steering For Outboards
OB Applications
Hynautic offers several different 2-Line hy-
draulic steering systems for outboard appli-
cations. They differ primarily in cylinder
type, but also in the tubing required and the
Helm Unit chosen. Consult the following
charts and drawings to make your choice.
Some considerations:
1. Where a choice of systems with different
wheel turns are provided, remember: The
quicker the steering, the harder the effort.
2. When using Counter-Rotating propellers,
the steering torque is half of what would be
considered normal for dual engines.
3. Systems with low pressure relief settings
(500 psi) include 50 feet of light duty 3/8" OD
nylon tube. High pressure systems, with 600
series numbers, include adapter fittings for
high pressure hose. Hose is purchased sepa-
rately.
4. High pressure hose, with reusable end
fittings, is available from Hynautic. Consult
elsewhere in this catalog for particulars.
Outboard 2-Line System Applications
Hynautic System
Engine No. Counter- Front Mt. Side Mt.
Manuf. Model Type Engines Rotation Cylinder Cylinder
Johnson 100 V-4 1 or 2 N/A - OB260-11
& 120 V-4 1 or 2 N/A - OB260-11
Evinrude 140 V-4 1 or 2 Y or N OB650-11 OB260-11
150 V-6 1 or 2 Yes OB650-11 OB610-11
175 V-6 1 or 2 Yes OB650-11 OB610-11
175 V-6 2 No OB650-11 OB610-11
200 V-6 1 or 2 Yes OB650-11 OB610-11
200 V-6 2 No OB650-11 OB610-11
225 V-6 1 or 2 Yes OB650-11 OB610-11
225 V-6 2 No OB1260-11 OB610-12
300 V-8 1 or 2 Yes OB1260-11 -
Mercury 135 V-6 1 or 2 Y or N OB650-11 OB260-11
& 150 V-6 1 or 2 Yes OB650-11 OB610-11
Mariner 175 V-6 1 or 2 Yes OB650-11 OB610-11
175 V-6 2 No OB650-11 OB610-11
200 V-6 1 or 2 Yes OB650-11 OB610-11
200 V-6 2 No OB650-11 OB610-11
250 V-6 1 N/A OB650-11 OB610-11
250 V-6 2 N/A OB1260-11 OB610-12
275 V-6 1 N/A OB650-11 OB610-11
275 V-6 2 N/A OB1260-11 OB610-12
100 V-4 1 or 2 N/A - OB260-11
Suzuki 140 4 1 or 2 N/A OB650-11 OB260-11
150 V-6 1 or 2 Yes OB650-11 OB610-11
175 V-6 1 or 2 Yes OB650-11 OB610-11
175 V-6 2 No OB650-11 OB610-11
200 V-6 1 or 2 Yes OB650-11 OB610-11
200 V-6 2 No OB650-11 OB610-11
225 V-6 1 N/A OB650-11 OB610-11
225 V-6 2 N/A OB1260-11 OB610-12
115 V-4 1 or 2 N/A - OB260-11
Yamaha 130 V-4 1 or 2 Yes OB650-11 OB260-11
150 V-6 1 or 2 Yes OB650-11 OB610-11
175 V-6 1 or 2 Yes OB650-11 OB610-11
175 V-6 2 No OB650-11 OB610-11
200 V-6 1 or 2 Yes OB650-11 OB610-11
200 V-6 2 No OB650-11 OB610-11
225 V-6 1 or 2 Yes OB650-11 OB610-11
225 V-6 2 No OB650-11 OB610-11
250 V-6 1 N/A OB650-11 OB610-11
250 V-6 2 Yes OB1260-11 OB610-12
Outboard System Performance Data
Helm Displ. Number Relief Max
Steer Wheel Setting Torque
System (cu. in.) (cm.) CylindersTurns psi (in./lbs.)
OB260-11 2.0 33 1 5.5 500 4,500
OB261-11 2.0 33 1 5.5 500 4,500
OB610-11 2.0 33 1 5.5 950 8,550
OB610-12 2.75 45 2 7.3 950 18,900
OB611-11 2.0 33 1 5.5 950 8,550
OB611-12 2.75 45 2 7.3 950 18,900
OB650-11 1.65 27 1 4.5 950 7,500
OB650-12 2.75 45 2 5.5 950 15,000
OB1260-11 2.75 45 1 4.6 950 10,300