Honda CBX 750F RC17 - User Manual

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Overview

This document is a service manual for the Honda CBX 750F (RC17) motorcycle, providing comprehensive information for owners and technicians.

Function Description:

The Honda CBX 750F is a motorcycle designed for various riding conditions, offering a balance of performance, stability, and comfort. The manual covers its operation, maintenance, and technical specifications to ensure safe and efficient use.

Important Technical Specifications:

Engine:

Type: Not explicitly stated, but implied to be a four-stroke engine based on maintenance procedures.
Idle Speed: 1,000 min⁻¹ (rpm)
Maximum Continuous Engine Speed (Break-in):
- First 1,000 km (600 miles): Max 5,000 min⁻¹ (rpm)
- 1,000 to 1,600 km (600 to 1,000 miles): Max 7,000 min⁻¹ (rpm)
- After 1,600 km (1,000 miles): Max 10,500 min⁻¹ (rpm)
Oil Capacity: Approximately 2.8 litres (3.0 US qt)
Spark Plugs:
- Standard: NKG DPR8EA-9 or ND X24EPR-U9
- Cold Climate (<5°C): NKG DPR7EA-9 or ND X22EPR-U9
- Extended High Speed: NKG DPR9EA-9 or ND X27EPR-U9
Spark Plug Gap: 0.9 – 0.9 mm (0.031 – 0.035 in)

Fuel System:

Fuel Tank Capacity: 22 litres (5.8 US gal, 4.8 Imp gal), including reserve.
Reserve Capacity: Approximately 4.2 litres (1.1 US gal, 0.92 Imp gal) when needle points to RES zone. Last 3.7 litres (1.0 US gal, 0.8 Imp gal) can be used by turning the fuel valve to RES.
Fuel Type: Regular gasoline with an octane rating of 91 or higher.

Suspension:

Front Air Pressure: 0 - 40 kPa (0 - 0.4 kg/cm², 0 - 6 psi)
Rear Air Pressure: 0 - 400 kPa (0 - 4.0 kg/cm², 0 - 57 psi)
Rebound Damping Adjuster: Three positions for front and rear.
Anti-Dive Adjuster: Four positions (Light anti-dive, Medium, Hard, Maximum anti-dive).

Tires:

Type: Tubeless
Minimum Tread Depth:
- Front: 1.5 mm (1/16")
- Rear: 2.0 mm (3/32")
Recommended Tire Pressures (Cold):
- Front: 250 (2.5, 36)
- Rear: 290 (2.9, 42)
Recommended Tires:
- Bridgestone: G511 (Front), G510 (Rear)
- Dunlop: K527A (Front), K527 (Rear)

Brakes:

Brake Fluid: DOT4
Brake Pad Wear: Check for wear indicators.

Dimensions/Weight:

Vehicle Capacity Load: Max 187 kg (415 lbs) (combined weight of rider, passenger, luggage, accessories).
Luggage Weight (alone): Max 25 kg (56 lbs).

Noise Emission (Australia Only):

Sound Level of Stationary Test: 91 dB (A) at 9,500 rpm (Engine Speed at Maximum Power).

Usage Features:

Safety:

Pre-Ride Inspection: Essential before every ride to prevent accidents and equipment damage.
Rider Qualification: Ensure you are qualified and licensed; never lend to inexperienced riders.
Visibility: Wear bright/reflective clothing, avoid blind spots.
Traffic Laws: Obey all national and local laws; avoid excessive speed.
Control: Keep both hands on handlebars, both feet on footrests. Passengers should hold onto the motorcycle/rider and keep feet on passenger footrests.
Protective Apparel: Always wear a helmet, face shield/goggles, boots, gloves, and protective clothing. Passengers need the same.
Hot Exhaust: Avoid touching the hot exhaust system; wear clothing that fully covers legs.
Loose Clothing: Do not wear loose clothing that could catch on controls.
Modifications: Modifications or removal of original equipment may render the vehicle unsafe or illegal.
Loading: Use extreme care with accessories and luggage as they can reduce stability, performance, and safe operating speed. Keep weight low, close to the center, and balanced. Adjust tire and air pressures accordingly.

Controls and Indicators:

Ignition Switch: OFF, ON, P (Parking), LOCK (Steering Lock).
Starter Button: Operates the starter when pressed.
Engine Stop Switch: Stops the engine immediately.
Headlight Switch: H (Headlight, tail light, position light, meter lights on), P (Position light, tail light, meter lights on), OFF (Dot headlight, tail light, position light, meter lights off).
Headlight Dimmer Switch: High beam ("Hi") and low beam ("Lo").
Passing Light Control Switch: Flashes headlight to signal approaching cars.
Turn Signal Switch: L (left) and R (right).
Horn Button: Activates the horn.
Voltmeter: Indicates battery voltage.
Tripmeter: Calculates mileage for trips, resettable with a knob.
Tachometer: Displays engine speed; avoid the red zone to prevent engine damage.
Fuel Gauge: Shows approximate fuel supply.
Warning Lights: Tail/stoplight warning, oil pressure warning, high beam, neutral, tail/stoplight warning.
Steering Lock: Locks the handlebars for security.
Helmet Holder: Secures helmets when parked.

Riding:

Warm-up: Always warm up the engine before riding.
Shifting: Smoothly shift gears using the clutch lever and gear shift pedal.
Braking: Coordinate front and rear brakes; avoid locking wheels.

Maintenance Features:

Scheduled Maintenance:

A detailed schedule is provided for various items, including fuel lines, filters, spark plugs, engine oil, brakes, drive chain, suspension, wheels, and steering head bearings.
Items marked with an asterisk (*) should be serviced by an authorized Honda Dealer.

Engine Oil:

Daily Check: Check oil level daily before operation.
Oil Level Check: Motorcycle on center stand, engine idled for a few minutes, then stopped. Dipstick inserted without screwing in. Level should be between upper and lower marks.
Oil Change: Drain oil when warm. Remove under cowl, oil filler cap, drain plugs, and oil filter. Replace filter and sealing washers. Refill with specified oil (approx. 2.8 litres).
Caution: Insufficient oil can cause serious engine damage. Change oil more frequently in dusty conditions.

Spark Plugs:

Inspection: Remove, inspect electrodes and porcelain for deposits, erosion, or carbon fouling. Clean or replace as needed.
Adjustment: Adjust gap to 0.9 – 0.9 mm (0.031 – 0.035 in).

Air Cleaner:

Servicing: Remove left side cover, unscrew air cleaner, remove retainer, discard old element, install new element.

Throttle Operation:

Check: Ensure smooth rotation of throttle grip at all steering positions.
Play Adjustment: Adjust throttle grip play (2-6 mm) by loosening lock nut and turning adjuster.

Engine Idle Speed:

Adjustment: Warm up engine, set idle speed to 1,000 min⁻¹ (rpm) using the stop screw.

Clutch:

Fluid Level: Check fluid level in the reservoir; should be above the lower mark.
Breather: Drain the plug periodically.

Drive Chain:

Inspection: Check for wear, rust, or damage. Measure slack (15-25 mm / 5/8 - 1.0 in) and adjust as needed.
Lubrication and Cleaning: Clean with kerosene, lubricate with SAE 80 or 90 gear oil.

Brakes:

Fluid Level: Check fluid level in reservoirs; should be between upper and lower marks.
Brake Pads: Inspect for wear; replace if wear extends to wear indicators.
Caution: Handle brake fluid with care as it can damage paint and electric wires. Never allow contaminants into the reservoir.

Suspension:

Front and Rear Suspension: Check for smooth action, no oil seepage, and tightness of fasteners.
Air Pressure Adjustment: Check and adjust when cold. Front (0-40 kPa), Rear (0-400 kPa).
Damping Adjustment: Adjust rebound damping and anti-dive settings as per riding conditions.

Side Stand:

Check: Inspect rubber pad for deterioration or wear.

Wheel Removal/Installation:

Front Wheel: Raise front wheel, disconnect speedometer cable, remove caliper assembly (support it), remove axle holder nuts, remove wheel.
Rear Wheel: Place on center stand, loosen drive chain adjusters, loosen axle nut, pull out axle, remove drive chain, remove wheel.
Caution: Do not depress brake pedal when wheel is off to prevent fluid loss.
Installation: Reverse removal steps, ensuring brake disc is carefully fitted between pads. Torque axle nuts to specified values.

Battery Care:

Inspection: Check electrolyte level and charge monthly during storage.
Fluid Level: Maintain level between upper and lower marks. Use distilled water to top up.

Fuse Replacement:

Location: Fuse box is on the handlebars, main fuse is near the battery.
Replacement: Use a fuse with the specified rating. Never use a conductive material.

Tool Kit:

Includes various wrenches, screwdrivers, spark plug wrench, and feeler gauge for basic repairs and adjustments.

Storage Guide:

Extended Storage: Change engine oil and filter, drain fuel tank and carburetor, spray rust inhibiting oil in tank, remove spark plug and pour oil into cylinder, crank engine, reinstall spark plug.
Battery: Remove, store in protected area, check electrolyte, slow charge monthly.
Motorcycle: Wash and wax, coat chrome, inflate tires, place on blocks, cover.
Removal from Storage: Uncover, clean, change engine oil (if stored >4 months), check/charge battery, drain rust inhibiting oil from fuel tank, fill with fresh gasoline, perform pre-ride inspection.