Meguro 500cc : Z6

Z5 model changes from the Z6.
MAR 1956 - MAY 1955 from about 700 years until one of the units have been produced.

Z5 improved engine performance from the main improvements are concentrated 
in particular parts of the engine head.
The auto race in Japan, from the results and experience gained in the development 
of improved performance and race bikes, changed the cam shaft of the conventional 
structure.
And, 2mm diameter of the inlet valve also increased.
Head cover for the expansion of the volume grew by oil cooling. 
And carved on the cover of the oval-shaped tappet adjustment, "MEGURO" the Japanese 
logo.
With these improvements, the maximum output "Z5" the 18HP/4000rpm from, 
"Z6" in 20.2HP/4400rpm to be improving.
Carved into the radiator fins for the crankcase is obsolete.

This improvement was required, the police were called in Japan.
Police motorcycles are known as MEGURO, but surprisingly only 10 since before the war 
from being employed as a police motorcycle units, this time after the war, 
did not have formally adopted.
Is not believed there had been pumping capacity of motorcycles and military criteria 
for the selection of the Imperial Japanese Army.
There was no reference in the document, from the performance of the motorcycle before 
the war, large motorcycle exhaust output also increase the speed comes from a simple 
and logical, as conditions that are beyond the specifications of the motorcycle exhaust 
capacity 1 liter seemed to be.
This was the closest to this condition later than after the war, "Rikuo" only, a police 
motorcycle was adopted as there continues.
However, since around 1955 manufacturer "Rikuo motorcycle" the worsening performance 
was difficult to provide a stable police motorcycle.
So from the police, was selected for the supply of motorcycle police, 
"CABTON" the Mizuho motors, "HOSK" the Nihon-kousoku-kikan, "EMURO" the Health motors
(Mikasa-Giken) lined up, MEGURO candidates and that he was, Z5 was less powerful than 
the other 500cc class.
However, had the reputation for durability and stability is a likely candidate MEGURO, 
MEGURO results in response to this request "Z6", respectively
However, in the conclusion, Z6 is "CABTON" has been adopted as the first police 
motorcycles along with the war, then began to retreat in the downturn in business, 
"Rikuo" and "CABTON" instead to become the next model " Z7 ", and" K, K2 "to, MEGURO 
era began to dominate the demand for police motorcycle.

Z6 is due to the increase in output speed 120 km/h from a stretched and improved brake 
construction, structural improvements made along the drive.
Brake hub, the expression a wide width strip of the conventional sliding surface from 
the hub, both front and rear wheels have been changed.
Primary chain has been strengthened with double-chain. 
And the drive chain as stepping-stones and less susceptible to dust when traveling at 
high speed, has been adopted by all the chain cover.
The body then they followed the Z5, front and rear fenders, a silencer, the extent of 
the fuel tank and changed the design.
Fender is wide in comparison to that of the conventional shape of the tail spread, 
and then considering the poor road surface conditions.
Silencer, the so-called "CABTON type" of "resonance silencer expression" to 
"Monaka type" is also referred to "acoustic device type" is convertible into, 
re-design the Z5 from the fuel tank was a common design for each model, 
The design was prepared by displacement class.
Fuel Tank 500cc class, with a design painted around the oval shaped emblem in chrome.
This design, Z6 after Z7, K, K2 and 300cc class YA, J-8 "Argus" reiterating well.

Police bikes are exclusively dedicated to Z6 is an early improvements were made again, 
MEGURO became the most famous Z7 "stamina" and handed over to order, just between the 
approximately 700 units were produced only small model it, but that there remains the 
possibility that high and I will continue to be discovered.


*** Principal statistics ***
* Total length : 2,200 mm
* Full-width : 820 mm
* Total height : 1,085 mm
* Distance between axis : 1,440 mm
* Weight : 213 kgf
* Engine type : C type: Single cylinder OHV 4 cycle
* Entire aerodynamic volume displacement : 498 cc
* Installed capacity : 20.2 HP / 4,400 rpm
* Full speed : 120 km/h
* Fuel economy : 28 km/L
* Transmission : Advance 4 step rotary
* Tire : (Front) 3.25�~19-4 / (Rear) 3.50�~19-4
* Starting system : Kick