Up for your consideration is a 1971 Honda CB750K0 in Valley Green Metallic with production date of 8/70. This bike is an excellent example of an early, all original CB750 that runs and rides about as good as it gets.
If that's all you need to know, check out the photos, if you're interested in the bike and want the whole story read on below.This bike was acquired by Pete, the owner of Cafe Cycles in Rhode Island in the beginning of 2023, from the grandson of the original owner.
The bike had been off the road for 15 years.
The original owner had the bike setup with pulled back handlebars, highway bars, a king and queen seat, rear luggage rack and a smaller rear sprocket for highway driving. When the bike came in, we removed all the parts that were not original to the bike.
We pulled the front end off the bike, rebuilt the front forks with new seals, fork gators and fluid.
We replaced the steering bearings with NOS balls and races. We put the front end back together with the correct handlebars and a new clutch cable. Next the exhaust was removed and detailed.
The two outer exhaust, 1 & 4 had a rust spot where the header meets the muffler.
The rusted spots were cut out and a stainless steel patch was welded in with stainless filler rod.
The left exhaust (number 1) has a hole in the rear at the bottom near the silencer as shown in photos.Number 2 muffler is very sold with no rust, but has some acid stain from battery acid overflow.
number 3 exhaust is in almost perfect condition.
All in all a very nice original HM300 exhaust that looks and sounds great.
All of the baffles were removed and repacked. While the exhaust was off, we removed the oil tank and the engine oil pan.
We flushed the oil tank out with kerosene and cleaned the oil pan inside and out.
The fuel tank was empty and clean.
We removed and rebuilt the carburetors with new float valves and rubber parts. we installed a new petcock and fuel line. We installed a new air filter, spark plugs, changed the engine oil and filter, and got the bike running, syncronized and adjusted the carburetors.
The timingchain was adjusted along with valve clearences, points and timing.
We installed a new Dunlop gold seal K87 tire on the rear and a Dunlop F11 on the front which are correct for the bike. The king and queen seat was removed and replaced with an original 1969 CB750 seat that came off a very early sandcast bike and had been in my neighbors attic for 45 years.
It is still very soft and supple.The bike has been ridden weekly for the past several months and is an absolute joy to ride.
Everything works as it should.
I put 360 miles on the bike and all parts listed above, since I got it on the road.Other flaws and or notes:the left side control box was swapped out by original owner with one from a 1972, which has the beeper delete button, it is not hooked up to anything since the 71 doesn't have a blinker beeper.
Someone drilled and tapped a hole with a plug in the front brake caliper both front and rear brakes work great.
There is an extra hole and a dent in the rear fender from where the rear rack mounted.
The bike shows some signs of being 53 years old but all and all a very presentable rider. Other than the parts listed above, everything is correct and original to the bike. from the single rolled lip front fender, the unicorn triple tree, older style gauges with instrument lights, the smaller early taillight, color matched headlight and ears.
Original rear shocks and the correct hardware all throughout the bike.
Also come with the original tool kit which appears to be complete.
The Bike is currently registered and insured here in Rhode Island.At Cafe Cycles we restore and customize vintage motorcycles, along with buying and selling OEM parts. you can visit our website at CafeCyclesRI dot comThere is some controversy online about when the K0 model ends and the K1 model begins, but according to the factory Honda manual the K1 model begins at VIN # 1055004 as shown in the photos.