The biggest market
in the States during the early 1970's was for
350cc class machines and although Honda dominated
it with their twin cylinder CB350 technically
more sophisticated machines from Kawasaki and
Suzuki threatened their dominance. Consequently
Honda developed a single cam across the frame
four displacing 347cc. The new model was introduced
during 1972 but struggled to establish itself
despite its competence in all areas, largely
due to a higher price without a significant
advantage in performance when compared to the
existing twin. The model was never officially
imported into the UK and is consequently extremely
rare on the British market.
| Bike |
Image |
Description |
Honda 350 CB K4 Racing Bike |
 |
|
| Honda K4 CB350 |
 |
Ex-Neil McWhirter /RJ Woolsey k4 350.
gas flowed head
- hardened stainless steel valves+ springs,
an x6 cam ( 1 of only three ever made),
2 amega mark 2 pistons ( + 2 spare), lock
heed front brakes, race forks, gas rear
shocks, new rear race springs, drixton
seat+ body worK, specially made swinging
arm and front end ( 3 inches
shorter than a standard, easier threw
into corners, also change a rear wheel
in minutes). Front and rear wheels, alloy, specially
madefront with 4 extra spokes for
strength, Interspan ignition, specially
made (4" shorter) drixton petrol tank,
the frame has extra tubing, twice at front
and rear for strength, one brand new tyre,
one 10% worn, race damper,
keihen original carbs (like hens
teeth to find) they also have push/pull
throttle, for safety. suitable for manx.
|
| 1969 Honda CB350K |
 |
- Air cooled, four stroke, twin cylinder
SOHC
- 149kg
- Drum brakes
- 5 speed
- 36bhp @ 10,500rpm
|
| 1970 Honda CB350 K4 |
 |
- CRMC Registered
- Engine rebuilt this year and has only
done around 25 miles since.
- omega pistons with new rings
- new cam chain, and steel tensioner
- new upgraded engine studs
- new clutch this year
- Honda RSC race cam on needle roller
bearing conversion
- kibblewhite race valves and springs
- lightened crankshaft
- 32mm amal carbs
- scitsi rev counter
- PVL Ignition
- Swarbrick pipes
- lockheed front master cylinder and
caliper
|
| 1970 Honda CB350 Super Sport |
 |
The CB 350's reliability, respectable
power, and ubiquity have insured its continued
popularity today, with beginners, enthusiasts,
and vintage racers. |
| 1971 Honda CB350 |
 |
|
1971 Honda CB350 |
 |
Like its predecessor, the Honda CB77
Superhawk, the CB350 was also offered in
scrambler form, as the CL350, with high-mounted
exhausts, and as the SL350, with upswept
exhausts and off-road styling. A four cylinder
version, the CB350F, was introduced in 1972. |
| 1972 Hopnda CB350 |
 |
- Big Bore Kit (362cc)
- RS Front End
- Nissin Front Caliper
- Aluminum Clip Ons
- High Performance Ignition
- NGK Spark Plugs/Spark Plug Wires
- Powroll Pistons
- Powroll Valve Springs
- Megacycle Cam
- 34mm Mikuni Carbs
- Heads Worked and Polished
- Mac Exhaust
- Works Rear Springs
|
| 1972 Honda CB350 K4 |
 |
After pitting the Super Sport against
its 350cc competition, Cycle magazine may
have said it best: "The Honda is tight,
neat, thorough and it will feel fresher
longer than the other bikes in the category.
Honda never seems to miss — and they
didn't miss here." In fact, the CB350
is one of the biggest hits in Honda history. |
| 1972 Honda K4 |
 |
As the '60s gave way to 1970, if you didn't
own a CB350 Super Sport, chances are you
knew someone who did. From its introduction,
agile handling, amazing versatility and
a strong, supremely reliable engine made
the 325cc air-cooled twin America's street
bike for all reasons. Drawn with clean,
taut lines that marked a new visual direction
for Honda, this successor to the esteemed
CL77 Super Hawk was designed to suit American
riders, and it did. Honda dealers sold more
than a quarter-million CB350s over the model's
five-year run — 67,180 of those in
1972 alone. |
| 1972 Honda CB350 K4 |
 |
|
| 1972 Honda K4 350 |
 |
Honda K4 Manx Race Bike. Newly built for
2008 Manx Grand Prix, and bike sailed through
practice and finished 23rd. Engine built
by John Stephens specifically for this event
has X5 Megacycle Cams, Omega pistons, new
32mm Mikuni Carbs, new Maxton fully adjustable
shocks, rebuilt 35mm front forks and brace.
PVL Ignition system together with scitzu
tacho. AP Classic Racing front brake. |
| 1972 Honda CB350 K4 |
 |
325cc |
| 1973 Honda CB350G |
 |
|
| 1974 Honda CB 350F1 Four |
 |
After the worldwide success of CB 750,
after the launch of the CB 500 Four in 1971,
Honda continues to ride the wave of proposed
4 cylinders and in 1972, a CB 350 Four.
This machine is not a substitute for the
CB 350 (the twin, more powerful and less
expensive), it is aimed at a clientele more
easily attracted by the prestige of a 4-cylinder. |
| 1973 Honda CB350K4 Disc |
 |
In 1973 Honda added a front disc brake.
|
| 1973 Honda CB350G Super Sport |
 |
|
| 1973 Honda CB350 K Series |
 |
Honda
CB350 Motorcycle Sport road test |
1974 Honda CB350F
|
 |
Honda
CB350 Motorcycle Mechanics road test
|
1974 Honda 350 CB |
 |
The Honda CB350 was a 325cc twin-cylinder,
four-stroke motorcycle produced by Honda
between 1968 and 1973. Its reliable motor,
coupled with dual Keihin carburetors proved
to be a popular design, becoming the highest
selling motorcycle in American history,
with 300,000 units sold. The machine evolved
cosmetically over the course of its production,
although engineering changes were mainly
limited to the introduction of a hydraulic
disk front brake on the 1973 CB 350G edition. |
| 1986 Honda CB350 S-G |
 |
|
| 1986 Honda CB350SG |
 |
1987-89, 346cc OHC twin,
34hp, 100mph, 50mpg, 380lbs 172kg |
| 1988 Honda CB350 S-G |
 |
|
