BPR4HS NGK | Kohler 3.5CFZ, 4CZ, 5CFZ, 6.5CZ guide

Engine (Continued)

	3.5CFZ/4CZ		5CFZ/6.5CZ
Spark Plug Type	Resistor, Radio		Suppression, 14 mm
		BPR4HS (NGK)
	Kohler Part Number L92YC (Champion)
		R43CFS (AC-Delco)
Spark Plug Gap--in. (mm)		0.028--0.031 (0.7--0.8)
Spark Plug Tightening Torque--		15--22 (20--30)
ft. lbs. (Nm)
Ignition System	Transistorized, Breakerless
Starter Motor		Bendix Automotive Type
Cooling System	Water-Cooled, Closed/Heat Exchanger
Cooling System Capacity--U.S. qts. (L)		1.10 (1.00)
Coolant Recovery Tank--U.S. qts. (L)		0.38 (0.35)
Thermostat		180 °F (82°C)
Pressure Cap Rating		15 psi (103 kPa)
Engine Firing Order		1--2
Ignition Timing B.T.D.C.		24°± 2 degrees
Exhaust Manifold to Cylinder		16 ft. lbs. (22 Nm)
Head Torque
Water Pump Assembly to		7 ft. lbs. (10 Nm)
Cylinder Block Torque
Cooling Fan Torque		16 ft. lbs. (22 Nm)
Air Cleaner Elbow to Carburetor		6 ft. lbs. (8.5 Nm)
Stud Torque
Timing Belt Cover Torque		6 ft. lbs. (8 Nm)
Governor Arm Shaft Nut Torque		7 ft. lbs. (10 Nm)
Governor Case to Cylinder Head		7 ft. lbs. (10 Nm)
Torque
Fuel Pump Pressure Rating	2.0--3.5 psi (13.8--24.1 kPa)
Battery Charging Winding		0.16--0.24 Ohms
Resistance--10 Amp
Ignition Coil Primary Wire		0.9--1.1 Ohms
Resistance
Ignition Coil Secondary		0.9--1.1 Ohms
(Spark Plug Wire Side) Resistance	(With Spark Plug Boot/Cap Removed)
Transistorized Ignition Air Gap	0.016 ±0.008 in. (0.4 ±0.2 mm)
Timing Belt Deflection	0.16--0.20 in. (4.5 mm) @ 4.4 lbs. (2 kg)

1-4 Specifications

TP-5695 12/93

Image 19

Kohler 3.5CFZ, 4CZ, 5CFZ, 6.5CZ installation manual BPR4HS NGK

Contents

5CZ Marine Generator SetsModels 5CFZ California Proposition Table of Contents Safety Precautions and Instructions Carbon monoxide can cause severe nausea Carbon monoxide Can cause severe nausea, fainting, or death Sulfuric acid in batteries can cause severe injury or Sulfuric acid in batteries Can cause severe injury or death Explosive fuel vapors can cause severe injury or Explosive fuel vapors Can cause severe injury or death Flying projectiles can cause severe injury or death Accidental starting Can cause severe injury or deathAccidental starting can cause severe injury or Rotating parts Can cause severe injury or death Hazardous noise Can cause loss of hearing Fire Can cause severe injury or deathSudden backfire can cause severe injury or death Sudden flash fire can cause severe injury or death 246242 Pleasure Craft Reference Material Additional References Commercial Vessels Part Description Kohler Part No Routine Service Parts Abbreviation Description Glossary of Abbreviations NEC Introduction SpecificationsSpecifications General Specifications 5CFZ/4CZ 5CFZ/6.5CZ Generator GX360EV Engine BPR4HS NGK Accessories Service Views typical Service Views Prestart Checks Operation Controller Controller Stopping Starting Circuit Protection Engine Safety Shutdown Switches High Water Temperature Shutdown Switch Remote Panels Optional Remote Panel Features Remote Start and Four-Meter Panel Kit Remote Start and Four-Meter Features Scheduled Maintenance Or 2 Years Service Schedule Generator Lubrication System Specifications Oil Change/Oil Filter Change Adding Oil Removing Oil Filter Fuel System Fuel Pump Screen Fuel Pump Screen Carburetor/Choke Lubrication Carburetor Adjustments Ignition System Ignition System ServiceSpark Plugs Carbon fouled Problem Means of Identification Possible Cause NormalGap bridged Oil fouled 12. Checking Spark Plug Gap Filling and Checking Cooling Systems- Closed/Heat ExchangerHot coolant and steam Can cause severe injury or death 14. Air-Bleed Screw Flushing and Cleaning TP-5695 12/93 Scheduled Maintenance 17. Removing Anticorrosion Zinc Anticorrosion Zinc Servicing Mixing Elbow Air Cleaner Mixing ElbowServicing Air Cleaner Pressure Cap Checking Specific Gravity BatteryCleaning Checking Electrolyte Level Charging 21. Specific Gravity Temperature Correction Valve Adjustment 22. Determining Top Dead Center Governor Governor AdjustmentLubrication Wattage Requirements Generator ServiceGeneral Storage Procedure Not start TroubleshootingEngine Unit cranks but will Lacks power Problem Possible Cause Corrective Action Stops suddenlyOperates erratically Electrical System Generator Schematic Wiring Diagram--3.5CFZ, 4CZ, 5CFZ, and 6.5CZ Wiring Diagrams 4CZ Diagrams To Generator To Shore Set Power Wire Generator SetsTo Load 60 Hz LO Neutral GroundLoad Side Line Side Without Jumper Lead L1--L3Page Generator Selection and Wattage Requirements InstallationMotor Loads Kilowatt Derating Appliance Loads Typical Location and Mounting Air Requirements CFM L/min Model Combustion Cooling LocationVentilationSpace Mounting Fuel Supply Fuel Systems Max. Lift ft. m In. mm Anti-Siphon ProvisionsFuel Lines Fuel Pump Lift Capabilities Fuel Consumption 11. Intake Strainer Cooling Systems 13. Seawater Strainer Closed/Heat Exchanger 15. Closed/Heat Exchanger Cooling System Exhaust Systems Carbon monoxide 17. Typical Above Waterline Installation Mid/Below Waterline Above Waterline Electrical Systems Installation in Steel or Aluminum VesselsAC Voltage Connections Wiring Battery Lead Designations Pin Function Remote Start Switch Connection Section Dimension Drawing--3.5CFZ, 4CZ, 5CFZ, and 6.5CZ Standard on 5CFZ and 6.5CZ Sound Shield--Optional on 3.5CFZ and 4CZ Parts Ordering Instructions For Sales & Service in U.S.A. & Canada Phone Operating Hour Service Log Kohler CO. KOHLER, Wisconsin 53044 Phone