Oil Capacity at Change: 2.9L
Oil Capacity at Change + Filter Change: 3.1L
Oil Capacity after rebuild: 4.0L
Viscosity, Canadian Climate: 10w40
My preference: Motul 5100 Ester 4T Technosynthetic Oil 10W40 4L
K&N Performance Gold Oil Filter Black – KN-303
Spark Plugs
The shop manual says that 1990 to 1993 models should use:
NKG CR8EH9
NIPPONDENSO U24FER9
The shop manual says that later models of the VFR750 (1994+) should use:
NKG CR9EH9
NIPPONDENSO U27FER9
HOWEVER, many online spark plug configuration wizards (such as Amazon and Fort Nine) say that the NKG CR9EH9 is the correct spark plug even for an early 1990 model like mine. The NKG CR9EH9 is a colder plug than the CR8EH9 specified in the official shop manual. Running too cold a plug is considered ‘safer’ than running too hot a plug. A too-cold plug will foul. A too-hot plug will cause pre-ignition and can destroy the engine in a short period of time.
Bottom line: Use four NKG CR9EH9 spark plugs, available online and at Canadian Tire.
Spark Plug: NGK CR9EH9 (Typically sold pre-gapped to 0.8mm)
Tighten to 9 ft-lbs (12 Nm, 1.2 kg*m)
GAP:
Brake fluid: DOT 4
Common problem areas
Leaking front forks
Parts:
The most common part that fails is the oil seal. It comes in a package along with a fresh dust seal.
BUT, while you’ve got the fork taken apart, you might as well install fresh bushings:
Honda 51414-KCR-003 Bushing Guide
Honda 51415-KCR-003 Bushing Slider