R6 FIRING ORDER

[e j]

Not sure of the firing order for the 99' R6 engine. Been swapping the coils about but still only seems to be firing on two cylinders at any time!! any help very welcome

[Sam Zimmerman]

Look here:

http://www.amazon.com/exec/obidos/tg/detail/-/0892879068/qid=1109899478/sr=8-2/ref=sr_8_xs_ap_i2_xgl14/104-1378746-8487120?v=glance&s=books&n=507846

It will answer this questions and many more that will arise in the future.

[ethanL007]

what about swapping injectors, assuming you converted the engine to efi.

more information would help.

[Agent4573]

the firing order is 1-2-4-3, but if you provide a bit more info I might be able ot help you better. What ecu are you running? what coil drivers? what coils? how are they currently wired up? stuff like that.

[Wilso]

We had the same issue on an F4i. The magnetic cam sensor was picking the mounting bolt on the sensor wheel opposite the trigger tooth so the ecu thought it was already on the next cycle. The result: only firing cylinders 1 and 2 before starting over at 1.
Just a thought...not sure most people change the cam sensor.

[Joel]

The firing order quoted above is correct, but cylinder 1 is not the one next to the cam sprockets. its at the other end...

I have an electronic copy of the workshop manual if you want it too.

[kalra]

we have got the firing order of yamaha r6 from the manual ...its 1 2 4 3 ... but the thing is we have mixed up the coils (which belongs to which cylinder)
could any one please help in arranging them in firing order.
or is there any standard way to represent coils' order in the wiring diagram???

[Nishant Jain]

hey,

the wiring diagram will have the details you need.

every individual spark coil has a colour combination of wires specific to the cylinder it is supposed to go to. read the diagram very carefully. put them in accordance with that!

[kalra]

Originally posted by Nishant Jain:
hey,

the wiring diagram will have the details you need.

every individual spark coil has a colour combination of wires specific to the cylinder it is supposed to go to. read the diagram very carefully. put them in accordance with that!

I have been reading this from one month and couldn't make out any sense of firing order of coils with respect to color codes
i would really be grateful if you can tell me general relevance of the color codes
thank you !

[Nishant Jain]

In the engine we used, cbr f4i, spark plug #1 has two wires blue/black and black/white. so when i have a set of 2 wires of that colour, i know they go to injector #1.

#2 - Yellow/White, Black/White (reference)
#3 - Red/Blue, B/W
#4 - Red/Yellow, B/W

[kalra]

man , thing is different here !!
oki .. let me explain the case 1st
what we got was an r6 engine block and a CDI unit we made our own wire harness without using any relay except starter one and we are not using the TPS... every coil is giving spark...

i have both the manuals of honda CBR as well as yamaha r6 there in honda its specifically mentioned this coils belongs to this cylinder no. but in yamaha's all we have to do is just keep on guessing http://fsae.com/groupee_common/emoticons/icon_frown.gif
please take a look at
http://www.r6messagenet.com/fo...6_Service_Manual.pdf (http://www.r6messagenet.com/forums/pdf/99-02R6_Service_Manual.pdf)
thanks

[Nishant Jain]

oh...

I'm out of my depth here, man.

[kalra]

:| ... well, thanx for the advice

[AH_1002]

Hi, I might be able to help. The r6 cylinders are numbered 1,2,3,4 from left to right viewed as if you were sitting on the bike. The firing order is 1243 but in reality it doesn't matter.

You don't have as many options as you think - one coil attaches to cylinders 1 & 4, the other to 2 & 3. ((almost all I-4 bike motors are 180 degree - cylinders 1&4 are a pair and 2&3 are a pair. Since it's a 4 cycle engine that means when 1 is firing, 4 is 180 off, same for 2,3. Also, most bikes run lost or wasted spark systems so both cylinders in a paired set, 1,4 or 2,3 - fire. The one that is on the compression stroke fires for power and the one that is 180 out fires too but only burns residual gases (if anything))
Assuming that both coils are working then attach per above and if it doesn't run swap the primary wires to the coils or swap both pairs of secondaries, same effect. You will never have cylinders 1 & 3 or 2 & 4 on the same coil. always in those 1/4 - 2/3 pairs. Then it's either correct or not. If not you do the swap - get it?
If the problem is that you have the primary (Low voltage) wires messed up and need to rewire then this won't help till you get that fixed.
Hope this is helpful.

[AH_1002]

Hi again,
My previous post may have been a little off. I was thinking the R6 had the dual coils not on plug like it has. Though they are still set up in pairs so it's not entirely different.
I did some digging in the manual and found what could help.
There are two coil circuits from the CDI - IG1 and IG2, each circuit powers two coils. So, the gray and black line runs to two coils and the other to the remaining two.
Now what you have are two pairs of coils that fire together. Keep in mind the previous post - I-4, 4 cycle, 180 timing and 1243 firing order.
One pair of coils must be attached to 1&4 and the other to 2&3. The problem is that in the wiring diagram they label the coils 1,2,3,4. This is confusing as it doesn't refer to the cylinders.
Since you made the wiring harness you should be able to figure out which coils are in pairs and then just make sure one pair is on 2,3 and the other on 1,4. If it won't run swap the pairs.

There's no way to know for sure from the wiring diagram, but my guess is that IG1 = 1&4 and IG2 = 2,3.
http://farm4.static.flickr.com/3500/3277632636_b6cf7fa619_o.gif

[Nitesh]

hi kalra..

i hope ah_1002's reply would have answered your query. that's the best i can think of explaining in text on the forum.
if you still have issues, you can call me on 9860415648. we have worked with R6 and have had our more than fair share of issues and might be able to nail the problem with you.

[kalra]

@ AH_1002, NITESH
thank you guys for making such a good replies , sorry for late reply
engine has started finally http://fsae.com/groupee_common/emoticons/icon_smile.gif

[uachtar]

Anyone out there that have fitted and after amrket ECU on a R6

[jlangholzj]

Originally posted by uachtar:
Anyone out there that have fitted and after amrket ECU on a R6

probably every team that runs an R6 has an "Aftermarket" ecu on it

[KustomizingKid]

I bet it has been done before... or maybe I have seen it every time we run our car...

[jlangholzj]

Originally posted by KustomizingKid:
I bet it has been done before... or maybe I have seen it every time we run our car...

you too?! huh...thought we were the only ones.