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Mercury XR2 User Manual

Mercury XR2
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26
FEATURES & CONTROLS
a
Warning System (Continued)
THE WARNING HORN SOUNDS CONTINUOUSLY
Problem – Engine overheat. The warning system is activated when
the engine temperature is too hot.
3 If the engine overheats, immediately reduce throttle speed to
idle. Shift outboard into neutral and check for a steady stream of
water coming out of the water pump indicator hole (a).
If no water is coming out of the water pump indicator hole (a) or flow
is intermittent, stop engine and check cooling water intake holes for
obstruction. If no obstruction is found, this may indicate a blockage
in the cooling system or a water pump problem. Have the outboard
checked by your dealer. Operating the engine while overheated will
cause engine damage. See the following note.
If a steady stream of water is coming out of the water pump indicator
hole (a) and the warning horn continues to sound, there still may be
insufficient cooling water or an engine problem. Stop engine and
have it checked by your dealer. Operating the engine while over-
heated will cause engine damage. See the following note.
NOTE: If you are in a stranded situation, stopping the engine and
allowing it to cool back down will usually allow some additional low
speed (idle) running time before the engine starts to overheat again.
The overheat problem must be corrected before you can resume nor-
mal operation.

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Mercury XR2 Specifications

General IconGeneral
MODELXR2
Horsepower180 (134kw)
Propshaft Kilowatts1194
Full Throttle RPM Range6000-7000
Idle RPM in Forward Gear650-750
Maximum Timing25° BTDC
Idle Speed Pickup Timing2° ATDC
Gear Ratio1.87:1
Piston Displacement122 cu. in. (2.0L/1998cc)
Bore3.125 in. (79.5 mm)
Stroke2.65 in. (67 mm)
Firing Order1-2-3-4-5-6
Recommended Spark PlugNGK-BUHW (P/N 33-97180)
Fuel Pressure5 - 6 psi
Recommended GasolineRefer to Fuel Section
Recommended OilRefer to Fuel Section
Recommended Gear Case OilQuicksilver Hi-Performance Gear Lube (92-816026A4)
Gear Case Lubricant Ca- pacity22.5 fl. oz. (666 ml)
Charging System Output16 amps @ 7000 RPM
Battery RatingMinimum reserve capacity rating of 100 minutes and CCA of 350
Water Pres. @ WOT15 PSI (103.4 kPa)
Weight and Dimensions IconWeight and Dimensions
Weight350 lbs. (159 kg)
Transom HeightShort Shaft = 15” (381mm) Long Shaft = 20” (508mm)

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