Manufactured

1988-92

Model

Frame No

Colours

Bros NT400J

NC25-1000001~1008753

Black

Graphite

Dark Red

Bros NT650J

RC31-1000001~1002543

Black

Graphite

Bros NT400k

NC25-1050001~1053898

Black

Graphite

Dark Red

Bros NT650k

RC31-1050001~1050698

Black

Graphite

Bros NT400k11

NC25-1053899~1053958

Black

Graphite

Dark Red

Bros NT650k11

RC31-1050699~1050898

Black

Graphite

Bros NT400L

NC25-1100001~1101011

Black

Graphite

Bros NT650L

RC31-1100001~1100313

Black

Graphite

Bros NT400L11

NC25-1101012~1101231

Black

Bright Red

Bros NT650L11

RC31-1100313~1100663

Black

Bright Red

Chassis

Aluminium frame - Twin tube Diamond as a stressed Member

Elf developed single sided swinging arm

Weight Dry 168kg / 370lbs Curb Weight 184kg /405lbs

Length 2085mm width 750mm 1075mm Wheelbase 1430mm

Engine

Water cooled 52 degree Vtwin SOHC in a mild state of tune

NC25E 399cc Bore 64mm Stroke 62mm 30-34hp

RC31E 647cc Bore 79mm Stroke 66mm 56-60hp

2 Spark plugs 2 Inlet 1 exhaust valve per cylinder

Compression 9.4:1

Service Information and maintenance schedule

Oil Capacity

After Assembly 2.8l

filter change 2.3l

At drain 2.2l

SAE 10W-40 Oil every 2000 mls Oil and filter every 4000mls

Spark Plugs

DR9EA-9 or cold climate DR8EA-9 Gap at 0.8-0.9 mm

Change every 4000miles

Valve Clearances -cold

Inlet 0.15 mm

Exhaust 0.20 mm

Check every 8000 miles

Cold tyre pressure

Front 33 psi (225kpa)

Rear 33 psi (225kpa)

Prolonged high speed or at high weight rear to 36 psi (250kpa)