1971 Honda CB450 K4 - Return to Stock

1971 Honda CB450 K4 - Return to Stock - Part 1

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In this 2 part video series we'll be returning our Polynesian Blue Metallic 1971 Honda CB450 K4 back to its stock configuration by undoing a handful of modifications that had been done to it over the years.
Below is a list of the components that have been installed on the bike:
1968 CB350 K0 Headlight Shell (61301-286-670A)
1968 CB350 K0 Headlight Assembly (33100-286-672)
1972 CB450 K5 Fuel Tank
1972 CB450 K5 Side Covers
Mikuni VM32 Round Slide Carburetors (pre-jetted, replacement carburetor boots)
Mikuni Light Throttle Return Springs (VM34/06)
Mikuni Choke Cable Adapters (002-351)
Custom CNC machined aluminum boot adapters
2-1 throttle cable (SpeedMotoCo via Amazon.com)
Choke cable (PU Universal Choke Cable for Mikuni Dual 28")
K&N RC-1252 High Performance Air Filters
Custom air filter adapters
6063 Aluminum Pipe: 57mm(OD) × 53mm(ID) × 300mm(L)
4-PLY 2.25" x 12" LONG TURBO/AIR INTAKE BLACK SILICONE HOSE
Renthal Street Handlebars - Ultra Low - Silver
Redwing KM-C 330 rear shocks
Digital voltmeter
Table of Contents:
0:00 1971 Honda CB450 K4
8:54 Cold start with Mikuni VM32 carburetors
10:22 Walk-around bike at idle
11:47 Mikuni VM32 choke cable adapter setup
14:46 Mikuni VM32 with K&N air filters
17:12 Mikuni VM32 with K&N air filters custom setup explained
20:36 Mikuni VM32 custom manifold spacers explained
21:26 Removing the headlight assembly
24:26 Broken stud on the tachometer gauge
26:36 Insultherm Tru-Fit wire sleeving
28:07 Making a diode subharness so we can run LED bulbs
31:47 Installing LED bulbs from SuperBrightLEDs.com
32:42 Disasssembly continues
#CB450
#MikuniVM32
#Honda

Пікірлер: 12

@Jpeg13759 2 жыл бұрын

The Honda CB 450 was my first 4stroke-bike...Loved it...

@toddswain7459 3 жыл бұрын

Thank you for the video. Bought a 72 for my son and I to restore and found your video both informative and entertaining!

@michaelsams450 3 жыл бұрын

Thanks for watching. I have another CB450 project coming up soon. These bikes are a blast to ride. Good luck on the restoration.

@oilinmyblood3906 3 жыл бұрын

Brother I watched your video all the way through and if I could I would be in the garage with you, you're doing a great job bud.

@michaelsams450 3 жыл бұрын

I really appreciate that. Thank you.

@kevinvu658 3 жыл бұрын

Hi Michael... great video! I have a 70' Honda CB450 and running Mikuni VM32. Since you are putting your bike back to stock, i'm interested in the complete plunger set up and the complete air filter set up. Would you consider parting it? Thanks.

@michaelsams450 3 жыл бұрын

Possibly, I'm working on another 450 project that these may wind up on so I can't say for sure until that project is complete. I'm sure I could dig up the part numbers and vendors I used to put it all together if you want. Message me on DoTheTon.com (Mike450) or VintageHondaTwins.com (Mike) if you're interested. Thanks for watching.

@kevinvu658 3 жыл бұрын

@@michaelsams450 hello can i asked what is your mikuni jetting? pilot? and main? my is running ok but i think it might need a fine tuning. Thank you.

@michaelsams450 3 жыл бұрын

@@kevinvu658 I was running the following: Slide: 3.0 Main: 160 Pilot: 32.5 This was the setup that came with the kit I bought. I wouldn't say the bike ran perfectly but it ran good enough for the around town kind of riding I do. I also switched to the lighter spring. It doesn't affect the tuning but I found it much more comfortable for every day riding. In my experience these carbs are much more sensitive to temperature and humidity than the CV carbs that came stock on the bike. Tuning for cold weather will not perform well in warm weather and vice versa. Hope that helps. Good luck with your tuning.

@kevinvu658 3 жыл бұрын

@@michaelsams450 ok thanks!

@kevinvu658 3 жыл бұрын

@@michaelsams450 are you still using the choke cable? i got some original honda cb450 parts perhaps we can trade?