Simple carb question

Diablouph · Jul 16, 2014

Assuming the engine and carb(s) are in good working order, which carb gives the easiest starting of a stone cold engine?

concours · Jul 16, 2014

Diablouph said:
Assuming the engine and carb(s) are in good working order, which carb gives the easiest starting of a stone cold engine?

Any carb that dumps liquid fuel down the gullet before any cranking (kicking) begins. (Amal concentric is one example)

pete.v · Jul 16, 2014

A nice thing about a pumper carb is that a few full turn of the throttle and you are all juiced up and ready to fire.

Craig · Jul 16, 2014

With my 34 mm mikuni ( '72 Combat with Boyer 4 ) I turn gas on then flip down enrichment lever ( on carb ) then give it one strong kick through ... then flip up cold start lever to off and another strong kick and it's running , regardless of temperature ... if hot out delete use of cold start every thing else same ... don't know if it's best carb but has worked for me since 2005
Craig

kerinorton · Jul 16, 2014

Diablouph said:
Assuming the engine and carb(s) are in good working order, which carb gives the easiest starting of a stone cold engine?

that's really for you to work out. bOTH CARBS ARE EQUALL, OR SHOULD BE.

olChris · Jul 17, 2014

Diablouph said:
Assuming the engine and carb(s) are in good working order, which carb gives the easiest starting of a stone cold engine?

Depending on the day and the earth/moon alignment to get a "stone cold??" engine to start you wont get the answer your looking for so if this help i suggest you contact this bloke....

concours · Jul 17, 2014

kerinorton said:
Diablouph said:

Assuming the engine and carb(s) are in good working order, which carb gives the easiest starting of a stone cold engine?

Click to expand...

that's really for you to work out. bOTH CARBS ARE EQUALL, OR SHOULD BE.

Nah... Mikuni enrichener design requires more time to draw the starting mixture through. Not such a big deal on a bike, but it does exist. Pull starting a snowmobile engine at -40F, however, drives the point home. The plunger type primer covers that gap.

If my Amal equipped Commando doesn't start first kick, I've goofed up the procedure. :mrgreen:

toppy · Jul 17, 2014

If its all in good order as you suggest then the simple answer is any carb type should give easy starting.

Many say SU carbs can be hard to start from cold.

I have twin Amal Premiers I just press tickler for couple of seconds a starts first or second kick ( no air slides fitted). But the carbs are new so work as they should.

Don't mess with old worn carb or carbs is the key to prevent carb related starting or running issues.

Bernhard · Jul 17, 2014

Diablouph said:
Assuming the engine and carb(s) are in good working order, which carb gives the easiest starting of a stone cold engine?

Both, all things being equal and properly set up, (this includes the ignition timing) but,
Neither if both the pilot air jets are blocked up with dried fuel crud :!: :shock:

auldblue · Jul 17, 2014

toppy said:
If its all in good order as you suggest then the simple answer is any carb type should give easy starting.

Many say SU carbs can be hard to start from cold.

I have twin Amal Premiers I just press tickler for couple of seconds a starts first or second kick ( no air slides fitted). But the carbs are new so work as they should.

Don't mess with old worn carb or carbs is the key to prevent carb related starting or running issues.

+1

pete.v · Jul 17, 2014

auldblue said:
+1

Well said, auldblue, well said. You are on fire today.

auldblue · Jul 17, 2014

Sorry Pete
It was flyboy49 that was on fire , my fin is cracked.

In my country if someone is constantly aggressive or abusive to another we call it scots love, I know you're showing me some love pete , I like it!

With pride J

My carbs are worn ,one kick cold , today two tickles( on the carbs Pete) and eight kicks warm bike, warm day.

pete.v · Jul 17, 2014

auldblue said:
Sorry Pete
It was flyboy49 that was on fire , my fin is cracked.

In my country if someone is constantly aggressive or abusive to another we call it scots love, I know you're showing me some love pete , I like it!

With pride J

My carbs are worn ,one kick cold , today two tickles( on the carbs Pete) and eight kicks warm bike, warm day.

Ah, your a good sport auldblue, maybe too good.
Neither warm nor cold carbs will throw you for a loop sometimes.

auldblue · Jul 17, 2014

Bike cold After 120 mile run at 60-70mph started 1 kick there you go.

Pete

This ones on me.

Justice , who knows?

pete.v · Jul 17, 2014

auldblue said:
This ones on me.

You got that right!

Simple carb question

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