Honda CBR300R 2018 User Manual

Overheating (Segment H flashes in coolant temperature gauge)
The engine is overheating when the following
occurs:
● The segment H flashes in the coolant
temperature gauge.
● Acceleration becomes sluggish.
If this occurs, pull safely to the side of the
road and perform the following procedure.
Extended fast idling may cause the segment
H to flash.
NOTICE
Continuing to ride with an overheated engine
can cause serious damage to the engine.
1. Stop the engine using the ignition switch,
and then turn the ignition switch to the
ON position.
2. Check that the radiator fan is operating,
and then turn the ignition switch to the
OFF position.
If the fan is not operating:
Suspect a fault. Do not start the engine.
Transport your motorcycle to your dealer.
If the fan is operating:
Allow the engine to cool with the ignition
switch in the OFF position.
3.
After the engine has cooled, inspect the
radiator hose and check if there is a leak.
2 P. 67
If there is a leak:
Do not start the engine. Transport your
motorcycle to your dealer.
4. Check the coolant level in the reserve
tank. 2 P. 67
u
Add coolant as necessary.
5. If 1-4 check normal, you may continue
riding, but closely monitor the
temperature gauge.
20170925135210_31K75A200_enu_BOOK Page 89 Monday, September 25 2017 13:58:25 JST
Troubleshooting
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Honda CBR300R 2018 Specifications

General

Engine Type	286cc liquid-cooled single-cylinder four-stroke
Bore and Stroke	76mm x 63mm
Compression Ratio	10.7:1
Valve Train	DOHC; four valves per cylinder
Induction	PGM-FI, 38mm throttle body
Ignition	Computer-controlled digital transistorized with electronic advance
Horsepower	30.4 HP @ 8, 500 RPM
Transmission	Six-speed
Final Drive	Chain
Front Suspension	37mm fork; 4.65 inches travel
Rear Suspension	Pro-Link single shock with five-position spring preload adjustability; 4.07 inches travel
Front Brake	Single 296mm disc with two-piston caliper
Rear Brake	Single 220mm disc
Front Tire	110/70-17
Rear Tire	140/70-17
Rake	25.3°
Trail	98mm (3.9 inches)
Wheelbase	54.3 inches
Seat Height	30.7 inches
Fuel Capacity	3.4 gallons
MPG	71 MPG
Fuel System	PGM-FI
Curb Weight	357 pounds