Mercury XR2 User Manual

42
MAINTENANCE
a
1-2
Flushing The Cooling System (Cont.)
IMPORTANT: Stop engine before shutting off water. Never op-
erate engine without cooling water. Even momentary engine op-
eration without water could cause severe engine damage.
6 Stop the engine, turn off the water, and remove the flushing at-
tachment. Reinstall the propeller.
Top Cowl Removal And Installation
WARNING
!
Do Not attempt to remove or install cowl while engine is run-
ning.
REMOVAL
1 Rotate latch (a) clockwise. Lift rear of cowl and pull back to disen-
gage front latch hook.
2 Lift top cowl up to remove.
INSTALLATION
3 Lower top cowl into position over engine. Tip the front of the cowl
slightly to engage the front alignment bracket. After the front
bracket is engaged, route cowl down into position making sure
the top cowl rubber alignment pins are in the bottom cowl location
bracket. Rotate latch (a) counterclockwise to secure top cowl.

Mercury XR2 Specifications

General

MODEL	XR2
Horsepower	180 (134kw)
Propshaft Kilowatts1	194
Full Throttle RPM Range	6000-7000
Idle RPM in Forward Gear	650-750
Maximum Timing	25° BTDC
Idle Speed Pickup Timing	2° ATDC
Gear Ratio	1.87:1
Piston Displacement	122 cu. in. (2.0L/1998cc)
Bore	3.125 in. (79.5 mm)
Stroke	2.65 in. (67 mm)
Firing Order	1-2-3-4-5-6
Recommended Spark Plug	NGK-BUHW (P/N 33-97180)
Fuel Pressure	5 - 6 psi
Recommended Gasoline	Refer to Fuel Section
Recommended Oil	Refer to Fuel Section
Recommended Gear Case Oil	Quicksilver Hi-Performance Gear Lube (92-816026A4)
Gear Case Lubricant Ca- pacity	22.5 fl. oz. (666 ml)
Charging System Output	16 amps @ 7000 RPM
Battery Rating	Minimum reserve capacity rating of 100 minutes and CCA of 350
Water Pres. @ WOT	15 PSI (103.4 kPa)

Weight and Dimensions

Weight	350 lbs. (159 kg)
Transom Height	Short Shaft = 15” (381mm) Long Shaft = 20” (508mm)