Mercury XR2 User Manual

16
GENERAL INFORMATION
Torque Requirements
ITEM TORQUE
Connecting Rods 30 lb. ft. (41 N·m) 271 Loctite
Crankcase Cover to Block 3/8 in. -- 40 lb. ft. (54 N·m)
Light Oil
5/16 in. -- 200 lb. in. (23 N·m)
Light Oil
Exhaust Divider Plate Cover 200 lb. in. (23 N·m)
Lower End Cap 100 lb. in. (11 N·m) 271 Loctite
Upper End Cap 200 lb. in. (23 N·m) 271 Loctite
Reed Block to Adaptor 100 lb. in. (11 N·m) 271 Loctite
Carburetor Adaptor to Reed
Housing
100 lb. in. (11 N·m) 271 Loctite
Stator Screws 40 lb. in. (5 N·m) 271 Loctite
Ignition Coil Screws Tighten Securely
Cylinder Head Bolts 30 lb. ft. (41 N·m) + 90° or 1/4
Turn, Light Oil
Flywheel Nut 150 lb. ft. (203 N·m)
Spark Plugs 20 lb. ft. (27 N·m)
Exhaust Megaphone 25 lb. ft. (34 N·m) 271 Loctite
Powerhead to Driveshaft Hous-
ing
35 lb. ft. (47 N·m) 271 Loctite
Gearcase to Driveshaft Hous-
ing
Tighten Securely

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)