Cold start

[KEITH KRAUSE]

If you don't know when the valve clearances were last checked or adjusted, you should check them simply because it's basic maintenance.
If the valves are within spec, then I suspect your pilot circuit isn't supplying enough fuel.

[Filippo]

Hello everyone, update on the situation: I installed the electronic ignition not for the starting problem but to improve the bike. However, I eliminated the problem by installing the new ignition: coils, high voltage wires, spark plug caps, points and condensers. However, the ignition problem remains and, therefore, the problem is limited to restoring the valves or fuel tap. I proceed in small steps.

[gtem]

You eliminated the problem but the problem remains?

Adjust the valves already for chrissakes.

Almost all of my carbureted 4cyl bikes will start up missing on a cylinder or two if the bike has sat long enough for fuel to evaporate from the bowls and I don't let them prime enough by setting the petcock to "prime."

[Rob S.]

You eliminated the problem but the problem remains?

Me 2...?

Yeah, he don't talk (type?) no good English.

[Rich82GS750TZ]

Filipo, you wasted time and money at the shop syncing the carbs before first verifying and adjusting, if necessary, your valve clearances. Just do it.

Rob, I guarantee Filipo’s English is way better than your Italian.

[rphillips]

Rich, Rob just admitted, in another thread, quote; "I don't speak or read Tennessese very well". Thinking there ain't much difference in his Italian and his spelling... Yep, "check the valves", if all are god, that ain't the problem, If any are out of spec. they need adj... A tight valve "can" cause cold start problems, before it causes a burnt a valve. BTDT.

[Rob S.]

Yep, "check the valves", if all are god... BTDT.

Valves are false gods. At least here in Noo York.

BTDT? Bite that darn 'mammary'?

Chow!