Junak M07R

From CycleChaos
Jump to navigation Jump to search


Junak M07R
Manufacturer
Production 1956
Class Road
Engine
Four stroke, single cylinder, OHV, air-cooled
Bore / Stroke 76.2mm x 76.2mm
Compression ratio 7.0:1
Horsepower 19.04 HP (14.2 KW) @ 6000RPM
Torque 19.92 ft/lbs (27.0 Nm) @ 3800RPM
Fuel System Carburetor
Transmission Gear box: 4-Speed

Final Drive: Chain

Clutch: Wet Multi-plate with cork inserts working in an oil bath
Suspension Front: Telescopic fork with coil springs and oil damping
Rear: Swinging arm sprung on telescopic elements with coil springs and oil damping.
Brakes Front: Full hub width, of expander shoe type, hand operated
Rear: Full hub width, of expander shoe type, foot operated
Wheelbase 55.79 inches (1417 mm)
Length 85.51 inches (2172 mm)
Width 29.09 inches (739 mm)
Seat Height 29.69 inches (754 mm)
Weight 183.0 kg (wet)
Manuals Service Manual


The Junak M07R was a Four stroke, single cylinder, OHV, air-cooled Road motorcycle produced by Junak in 1956. Max torque was 19.92 ft/lbs (27.0 Nm) @ 3800 RPM. Claimed horsepower was 19.04 HP (14.2 KW) @ 6000 RPM.

Engine[edit]

A 76.2mm bore x 76.2mm stroke result in a displacement of just 349.0 cubic centimeters.

Drive[edit]

The bike has a 4-Speed transmission. Power was moderated via the Wet Multi-plate with cork inserts working in an oil bath.

Chassis[edit]

Stopping was achieved via Full hub width, of expander shoe type, hand operated in the front and a Full hub width, of expander shoe type, foot operated in the rear. The front suspension was a Telescopic fork with coil springs and oil damping while the rear was equipped with a Swinging arm sprung on telescopic elements with coil springs and oil damping.. The wheelbase was 55.79 inches (1417 mm) long.

1956 - 1959 Junak M07R[edit]

1956 - 1959 Junak M07R 1956 - 1959 Junak M07R

The M07R is virtually identical to the M07. It has been adjusted slightly by removing the headlight, different shocks and mudguard. The purpose was to make it fit for racing purposes especially off-road competitions.



Share your opinion