1971 CL450

DesertLab

Active Member
We just picked this girl up, as is. Need to adjust the clutch, but that's about it. Stay tuned for updates.
 

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Re: 1977 CL450

Check your paperwork, that ain't no 1977 Honda 450, maybe a 1967, but more likely something like a 1969-74 with a 1965-67 tank on it. I have not seen that external oil plumbing set up before, but it doesn't look correct. Where it is getting oil from is correct, and the exhaust cam on these has been known to starve and destroy itself, but I would think all the oil would go in the first cam, and nothing would get to the second one. Though now that I look, Team Hansen runs a similar set up on their race bikes.

Except for the pod filters and the stock CV carbs it looks like someone knew what they were doing.
 
Yeah that was a typo. It's a 1971 CL 450.

Regarding the cam oiling setup, now that you point it out, it does make sense to have it plumbed in a T, rather than the existing setup. I didn't plumb it, so I'll do so research and see what I can come up with.

Here's the lowdown on the bike.

Frame:
Bunch of tig welded reinforcements
1/4" aluminium engine mounts
Bungs welded into the existing frame for the rear sets
Black Bomber tank with repo badges
Upholstered Airtech seat
Chopped factory rear fender
GSXR 750 rearsets

Suspension:
CB750F DOHC fork, re-valved, shortened springs.
CB500 triples, smoothed and polished
Steering dampener
Vintage S&W race shocks
Bronze swingarm bushings
Ceriani headlight brackets
Tommasellli clip-ons

Engine:
Fully rebuilt with NOS parts including the shift forks, shift quadrant, springs cam bearing caps & intake manifold.
Cappellini moto cam chain rollers and tensioner
External head oiling solving the cam wear issues with this motor
Reground cam and followers, more lift and duration
+1mm oversized intake valves, ported
Cometic head gasket
JE forged pistons for 500cc & 10.5:1 compression
Rebuilt & re-jetted stock carbs
CB500t transmission
k0 clutch (6-springs), Barnett clutch plates
Starter Blockoff
Rewired charging rotor
Omar's 2:1 exhaust

I won't tell ya how much I paid for this thing, cause I basically stole it, lol.
 
Seems like the builder may have known what they were doing. The oiling set up would work the way it is, as long as there is a restrictor going into the exhaust cam. These oil pumps are low pressure/high volume. Restrict how much oil can come out that first fitting, and it will flow to the second one. I think it just looks funky with the blue hose instead of braided stainless, or hard lines even.
 
The stock motors do have oil restrictors in the cams to meter the oil flow. When I rebuilt mine I opened the exhaust restrictor slightly as that cam wears the fastest.

Who knows what is in this motor, but it certainly looks like they knew what they were doing. Nice find.
 
Been riding the bike frequently and she has been running awesome until yesterday.

1. Bike was hard to kick-start. Usually starts on 2nd or 3rd kick.
2. Once started, the bike didn't want to idle. Just died.
3. Started the bike again and took her for a spin up the street.
4. Failed to idle at the stop sign and died.
5. Started her up again rode a couple of blocks until she puked up a shit ton of oil (I believe from the breather routed under the seat) and completely lathered the back half of the bike with oil.

Not knowing where the oil was coming from at the time, I walked her home. I proceeded to clean her up & tried to diagnose where the oil came from. Best guess is the breather, but crazy because there was a good amount of oil on the back half of the bike.

Any insight here? Ideas, ect?

Later tonight I am going to finish cleaning everything up and re-inspect the motor, check the oil level and adjust the idle if theres nothing else obviously wrong.

Thanks in advance for the kind words of advice.
 
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