chicken and egg ...carb or timing

[fisheymikey]

ok after looking at franks carb tutorial I have a nice question..
I had a stator problem also flywheel, anycase I change the timing .
if I do the link and sink procedure then after the timing dosent the carb fall out of place due to readjusting the timing tower.
what is the starting point? the cam of the neeed to be level then screw then timing?

the question always was make sure to start right. just a clarification would be great

thanks

 

[MickLovin]

I would do my timing first, as this is the electrical component, your carby set up is your fuel component. I would have your timing right so you can sync your carbies and adjust idle.

 

[MickLovin]

Just for a laugh, it is possible that the chicken has evolved from a birth giving dinosaur therefore no egg.

 

[Jiggz]

Contrary to popular belief, timing doesn't change with the adjustments on the linkage without the carb's throttles doing the same. Meaning if the carb's throttle position changes, so does the timing. In short, if timing is set with idle screw set to zero or not pushing against the timing tower and the cam's scribe aligned with the eccentric roller's slot line and the carb's throttles going full horizontal with the control lever in full forward position, any adjustment to idle should not affect timing. Remember, idle adjustments also forwards the timing. Meaning with the throttles at full close position, timing should be at zero and at full open throttle position (horizontal) the timing should be at max dynamic setting (usually at 30 degrees or 32 degrees depending on engine models).

If timing is already set and you adjusted and increase the linkage rod of the carbs with its locking nut, the timing remains the same but the throttle is not for it will change with its reference to the control lever. If you increase the length of the linkage rod, then the throttle will be slightly open with timing at zero BTDC and the control lever at neutral which will be indicated by the misalingedf cam's scribe and eccentric roller slot resulting in higher idle speed despite not having to adjust the idle screw.

On the otherhand, if the linkage rod is reduced in length, then idle rpm will be lower and so is the max rpm at full forward control lever position.

 

[fisheymikey]

thanks so much Jiggz! that make s sense to me!