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Mercury XR2 User Manual

Mercury XR2
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34
OPERATION
Engine Break-in Procedure
CAUTION
!
Severe damage to the engine can result by not complying with
the Engine Break-in Procedure.
Operate your outboard at varied throttle settings – not to exceed 1/2
throttle (3000-3500 RPM) during the first hour or ten gallons of En-
gine Gasoline/Oil Mixture. Refer to Fuel Section.
During the second hour of operation, or the second 10 gallons of En-
gine Gasoline/Oil Mixture, operate the outboard at varied throttle set-
tings not to exceed 4500 RPM.
IMPORTANT: DO NOT operate the engine at full throttle until
the second hour of break-in is completed. This includes full
throttle acceleration, pulling water-skiers or wide open throttle
running.
After the first two hours of running, approximately 20 gallons of fuel,
full throttle operation may be obtained, but not sustained, for the re-
maining break-in period (approximately 10 gallons of gasoline/oil
mixture or 1 hour of operation).
For the next seven hours of operation, full throttle operation may,
again, be attained, but strongly not recommended for sustained use.
(More than 5 minutes of continuous full throttle operation).
BREAK-IN AND RUNNING JETS
The engine has been shipped with (.094 in.) Break-In jets installed.
After the proper break-in period has been completed these jets must
be removed and (.090 in.) Running Jets installed. Consult the Dealer
for this procedure or refer to the appropriate engine service manual
for your model engine.

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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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