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Ron T. in KY
Ron T. in KY
Northern KY
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mrcarb Offline OP
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The 65 Atlas that I bought a while back needs some assembly and I am installing the wiring harness. My question is does the harness route to the right side of the steering head?

Thank you in advance.

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[Linked Image]I ran mine to the left. Made more sense that way.


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
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mrcarb Offline OP
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Are the wiring harnesses usually routed that way on Atlas's?

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Had 66 Atlas that looked original and was routed like this. Zener diode, battery, horn, brake light switch and taillight wire routing are on that side.


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
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When routing it on the left side does the fuel tap get in the way? I am using a new original harness.

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No it doesn't. I run harness on inside of frame. I believe the petcock is outside frame.


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
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How long since you looked at your tank ! Or turned on the petrol/gas.


Originally Posted by Beach
No it doesn't. I run harness on inside of frame. I believe the petcock is outside frame.
The taps on my slimline tank (not an Atlas)(one has been added ?) are both inside the frame tubes.
I'd have difficulty thinking there was room for a tap outside, tank follows fairly closely outside the frame tubes.

??

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Here we go.

[Linked Image from i.ebayimg.com]

It is a replica, so caveat emptor

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Originally Posted by Rohan
How long since you looked at your tank ! Or turned on the petrol/gas.

What an idiot! Must be nice to be right all the time.


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
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Fake news or 'alternative facts' are out of fashion these days.
We leave them for those other forums .... !
Cheers. !

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yes petcock on left.
If the harness, which is fairly slim, is attached to the frame rail there would be virtually no additional problem actuating the petcock. The 3/4" drop tube helps access but hurts the range of "reserve". A group did a study of various petcocks for flow rate. Getting a good one that flows enough is quite important. Low flow will lean out the carb on a high speed highway blast and potentially lean seize the engine.
There are few good choices for single off/on/reserve petcocks especially with BSP threads.
Map cycle # MAP0654 works and flows very good though I chased the 1/4NPT threads with a 1/4 BSPP die.Made in the USA dapco dexter mi viton seal not nitrile or buna so E-10 is ok
A custom thickness washer is needed to rotate the lever outward for access. Install without a locknut as you will loose reserve fuel but the thread start angle/phase will be random so each tank will be different/custom thickness.

Luckily my fiberglass dunstall ATLAS has dual outlets, unfortunately it is fiberglass thumbsdown. So I will have to make a repop.


dynodave
BSA 3 1961-1963
Ducati 3 1992-2002
Norton many 1951-1975
87 Serv-Equip 100HP MC brake dynamometer,

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