Firing order

[Guest]

Help...

I'm trying to get my 83 gs650 running for the first time this year,. Freshly rebuilt carbs... After hours of adjusting mixture screws and several recharges of the battery the best I can do is get it to sputter down some starting fluid before dying out...

At this point all four exhaust pipes should be warm but only one is (second from the right) and the rest are cold. I'm wondering if the spark plug wires are on the wrong plugs???
Can someone help me with where each spark plug should go?

The book says the firing order is 1234 but doesn't elaborate on which side goes to which plug or even which plug is 1,2,3 or 4...

Lost, again...

[Agemax]

left coil goes to 1 + 4, right coil goes to 2 + 3.
cylinders are numbered 1 to 4 from left to right as you are sat on the bike.

[tom203]

Is this the same bike thst you have been working on since 2015? Reviewing your previous posts is confusing to me. Can you summarize how your carbs were rebulit, any mods/ aftermarket parts, etc. Needless to say, bike should fire on all 4 cylinders at idle - getting it to run nicely after that is more challenging.

[Tiny]

Thank you... Of the two wires on each coil does it matter which goes to which? Left coil goes to 1 and 4 but which wire goes to 1 and which to 4? Or does it matter...?

[Tiny]

One of the bikes I've been working on. I had "help" I wasn't aware of over the winter. Carbs were thoroughly cleaned and stock jets used. Problem now is it won't start at any setting on the mixture screws.... After all the cranking on it only one exhaust pipe got warm. Seems it's only firing on one cylinder.

[tom203]

Did you carefully bench sync the carbs? All four throttle plates must be similarly just about closed,or the idle circuits won't deliver fuel up into the carb's throats

[Tiny]

Yep... I sure did...

[tom203]

Check for good spark on all 4. - all you need is fuel, spark (at right time) and compression

[Tiny]

The plug wires are in the right order but the spark seems to be weak or erratic... Soooo new plugs or new coils? Thoughts?

[jsandidge]

Thank you... Of the two wires on each coil does it matter which goes to which? Left coil goes to 1 and 4 but which wire goes to 1 and which to 4? Or does it matter...?

No, It doesn't matter which one goes to 1 or 4.

[Tiny]

No, It doesn't matter which one goes to 1 or 4.

Thank you bud

[derwood]

the firing order is not 1234

[Steve]

the firing order is not 1234

Very accurate, but also very incomplete.

The firing order is 1 2 4 3.

.

[derwood]

very incomplete? its a 4 cylinder, what more do you need?

Very accurate, but also very incomplete.

The firing order is 1 2 4 3.

the OP has a manual, he misread something or made a typo, it would be insulting and condescending to spoon feed an intelligent literate adult

[Rijko]

very incomplete? its a 4 cylinder, what more do you need?

the OP has a manual, he misread something or made a typo, it would be insulting and condescending to spoon feed an intelligent literate adult

hmmm ... and saying RTFM is not ?
I like people not only pointing out a mistake but providing correct info at the same time