Tuning Carburetors Individually

Mrburnn · Post by **Mrburnn** » Mon Sep 17, 2018 9:37 am

Good morning Forum!
Thanks to several coaching sessions with Loud Mouse (thank you for your time sir!) I finally have my '67 CL77 running and idling. I am now trying to fine-tune the carburetors by "ear". I have read about pulling the spark plug wires one at a time to adjust the RPM's individually. Is this a good or bad idea?

Thanks as always!
Mrburnn

G3 · Post by G3 » Mon Sep 17, 2018 12:17 pm

Sounds bad to me.
I say follow Ed’s procedure (as you have), and watch your plugs for telltale signs of lean or rich condition, and go from there.
Seems to me a dead cylinder would pull the idle RPM down on the running one, which would mess with your final idle RPM adjustment with both running.

LOUD MOUSE · Post by **LOUD MOUSE** » Mon Sep 17, 2018 3:41 pm

<<<<adjust the RPM's individually>>>> Don't do it!
Some years back at a VJMC meet at Fort Knox a feller bought a bike from a member.
The engine started loosing power as we rode so we stopped and a member offered to tune the carbs . CB350 HONDA
He removed a plug and started the engine then he adjusted the carb to idle for the cylinder that was running.
That done he did the same for the other side.
I told Tom Lang "YA GOT TO WATCH THIS"!
Now with both plugs installed and each carb adjusted to IDLE THE ENGINE he started the engine.
Do I need to tell you what the RPM was when both carbs were set his way???????????????.
The carbs were adjusted correctly by another member and we rode off.
But the engine quit completely and we trailer'ed the bike to the hotel.
I found after market points with nylon rather than phenolic separators and both were melted and shorted the points to ground.
We were able to find a couple of OLD points and I swapped the separators and the engine ran for the rest of the meet. .....................lm

Mrburnn wrote:Good morning Forum!
Thanks to several coaching sessions with Loud Mouse (thank you for your time sir!) I finally have my '67 CL77 running and idling. I am now trying to fine-tune the carburetors by "ear". I have read about pulling the spark plug wires one at a time to adjust the RPM's individually. Is this a good or bad idea?

Thanks as always!
Mrburnn

Mrburnn · Post by **Mrburnn** » Mon Sep 17, 2018 5:54 pm

Thank you both for your comments, that's all I need to hear. And thank you again Loud Mouse for all your assistance!!

MrBurnn

LOUD MOUSE · Post by **LOUD MOUSE** » Mon Sep 17, 2018 6:35 pm

You are welcome. .......................lm

Mrburnn wrote:Thank you both for your comments, that's all I need to hear. And thank you again Loud Mouse for all your assistance!!

MrBurnn

Hoosier Tom · Post by **Hoosier Tom** » Mon Sep 17, 2018 9:39 pm

LOUD MOUSE wrote: I told Tom Lang "YA GOT TO WATCH THIS"!

And watch I did.

HT

LOUD MOUSE · Post by **LOUD MOUSE** » Mon Sep 17, 2018 10:13 pm

Sort of funny.
Right Tom?. ...........lm

Hoosier Tom wrote:
LOUD MOUSE wrote: I told Tom Lang "YA GOT TO WATCH THIS"!
And watch I did.

HT

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Tuning Carburetors Individually

Tuning Carburetors Individually

Re: Tuning Carburetors Individually

Re: Tuning Carburetors Individually

Re: Tuning Carburetors Individually