Author Topic: Fuel injection conversion (edit) fixed a few things (Read 168021 times)

J.Webster Designs · « **Reply #500 on:** February 06, 2012, 08:51:57 AM »

hey guys... quick question... I am finishing up the wiring on my FI project... I am attempting to get my ignition input from the coil directly. According to the Mega Manual, the microsquirt should be wired as follows...

OPTOIN+ coil negative

OPTOIN- 12V

I am trying to figure out where my which of the wires on my bike are Coil Negative... I looked over the wiring schematic and it looks like the black and white wire is switched 12V through the kill switch and the blue and yellow wires on the coil are signal wires coming from the ignition...

I am running a DYNA S ignition with 3 ohm coils

Any help would be appreciated.

750essess · « **Reply #501 on:** February 06, 2012, 09:13:58 AM »

The blue and yellow are the coil neg. try the diagram at this link 7th post down by ew flyer. He had a lot of problem getting a signal off of a coil and this solved it.
http://www.microsquirt.com/viewtopic.php?f=38&t=23886#p151772

750essess · « **Reply #502 on:** February 06, 2012, 09:21:16 AM »

Lucky, my website has been dead for a while. I'll post some pics of any details you would like. Also for anybody that is interested, there is a modified msextra firmware out now that has active idle stabilization by advancing or retarding the ignition to maintain a set idle speed . Between this and other improvements i dont think I'll attempt sequential inj now. The firmware is here :
http://www.msextra.com/forums/viewtopic.php?f=91&t=43793&hilit=gslender

J.Webster Designs · « **Reply #503 on:** February 06, 2012, 09:30:22 AM »

750... Is he proposing that that circuit be taped into the coils pre existing lines? or is he saying that the diodes and resistors need to be put into the stock wiring for the bike and the MS taped in after said diodes and resistors?

I am also reading that this is only a viable option for IDI and TCI ignitions. what is the CB750 with Dyna S and 3.0 ohm coils? i thought it was CDI?

750essess · « **Reply #504 on:** February 06, 2012, 09:45:13 AM »

I would put a "y" bullet connector at the coils at point A and B in diagram. Use one branch to go to dyna, other to go to diodes etc then MS. The diodes clip the noise spikes and the resistor is a pull up so the input to the opto goes from 12 v to ground if my 20 year old electronics knowledge isnt failing me....

J.Webster Designs · « **Reply #505 on:** February 06, 2012, 09:48:19 AM »

thanks for the response. have any ideas if the DYNA is a IDI, CDI or TCI? looks like this circuit is only good for IDI, and TCI.

750essess · « **Reply #506 on:** February 06, 2012, 09:52:39 AM »

Dyna is just a switch to gnd like points, so its a TCi

J.Webster Designs · « **Reply #507 on:** February 06, 2012, 10:09:23 AM »

cool. thank you.

J.Webster Designs · « **Reply #508 on:** February 06, 2012, 10:41:44 AM »

I think this is what we are looking at with our bikes... correct me if I am wrong...

lucky · « **Reply #509 on:** February 06, 2012, 11:24:59 AM »

Quote from: KB02 on February 08, 2008, 04:58:43 AM

For the lazy ones, here's the l;ink:

Fuel Injection Conversion.

Project's looking good so far man.

There was NO LINK saying "PROJECTS"
The only links were:
Home
Rentals
Trek
Specialized
Service
Parts & Accessories
About Us
Find Us

BTW...It is Option not optoin

Good luck on your project.

750essess · « **Reply #510 on:** February 06, 2012, 11:26:29 AM »

That looks right. make sure you put the diodes in with the band toward the coils

750essess · « **Reply #511 on:** February 06, 2012, 11:31:22 AM »

Quote from: lucky on February 06, 2012, 11:24:59 AM

Quote from: KB02 on February 08, 2008, 04:58:43 AM
For the lazy ones, here's the l;ink:

Fuel Injection Conversion.

Project's looking good so far man.

There was NO LINK saying "PROJECTS"
The only links were:
Home
Rentals
Trek
Specialized
Service
Parts & Accessories
About Us
Find Us

BTW...It is Option not optoin

Good luck on your project.
I hope we get some pics soon.

LOL. somebody else has my old web site address, my site is long gone and it is optoin as in opto isolator in

J.Webster Designs · « **Reply #512 on:** February 06, 2012, 11:35:51 AM »

Quote from: 750essess on February 06, 2012, 11:26:29 AM

That looks right. make sure you put the diodes in with the band toward the coils

Will do...

Quote from: lucky on February 06, 2012, 11:24:59 AM

Quote from: KB02 on February 08, 2008, 04:58:43 AM
For the lazy ones, here's the l;ink:

Fuel Injection Conversion.

Project's looking good so far man.

There was NO LINK saying "PROJECTS"
The only links were:
Home
Rentals
Trek
Specialized
Service
Parts & Accessories
About Us
Find Us

BTW...It is Option not optoin

Good luck on your project.

Straight from microsquirt... http://www.useasydocs.com/details/coiltrig.htm

750essess · « **Reply #513 on:** February 06, 2012, 12:14:31 PM »

also note that this setup will give u 2 pulses per revolution. just hook up one coil to the ms if u want just one. i dont rember what the code wants to get proper rpm reading. it will read double if 2 pulses per rev is not right

J.Webster Designs · « **Reply #514 on:** February 06, 2012, 06:20:40 PM »

will make sure i check into that. I think one of the points he was trying to make was that 2 pulses were better than one? along with the noise reduction.

cben750f0 · « **Reply #515 on:** February 07, 2012, 10:42:53 PM »

lucky why is it every time you post, it comes across like you are being a massive twat. people don't need grammar or english lesson, or explanations on acronyms (in my case), Jesus.

onto other business, thanx for the excellent continued effort on the FI modes guys...very inspirational.

peace

Retro Rocket · « **Reply #516 on:** February 07, 2012, 10:52:20 PM »

Quote

lucky why is it every time you post, it comes across like you are being a massive twat. people don't need grammar or english lesson, or explanations on acronyms (in my case), Jesus.

No offense intended but i always get a laugh out of an American correcting spelling on a world stage, considering they completely butchered the English language to suit themselves....

fastbroshi · « **Reply #517 on:** February 07, 2012, 11:03:56 PM »

Why would you be worried about Lucky coming off the wrong way? This is the internet, so we can't really infer any tone from words that aren't spoken, or body language we can't see. So maybe when read on a monitor it seems off, but in person maybe he's not(?). And Retro, I'll spell colour any way I want ya arsehole

The Road Warrior sucks!!

Retro Rocket · « **Reply #518 on:** February 07, 2012, 11:21:21 PM »

Quote from: fastbroshi on February 07, 2012, 11:03:56 PM

Why would you be worried about Lucky coming off the wrong way? This is the internet, so we can't really infer any tone from words that aren't spoken, or body language we can't see. So maybe when read on a monitor it seems off, but in person maybe he's not(?). And Retro, I'll spell colour any way I want ya arsehole The Road Warrior sucks!!

You forgot, Tyre, flavour, favour, neighbour, galvanising, cheque, honour, humour, glamour and don't forget criticise and judgement.... ......Lots more.........

fastbroshi · « **Reply #519 on:** February 07, 2012, 11:23:28 PM »

I always get a chuckle out of al-oo-min-ee-um. Is there an accent on the word "twat"?

cben750f0 · « **Reply #520 on:** February 07, 2012, 11:28:01 PM »

haha nope....say it like its read....

peace

Retro Rocket · « **Reply #521 on:** February 07, 2012, 11:38:57 PM »

Quote from: fastbroshi on February 07, 2012, 11:23:28 PM

I always get a chuckle out of al-oo-min-ee-um. Is there an accent on the word "twat"?

That would be, al you min e um ....

Sorry couldn't help myself....

J.Webster Designs · « **Reply #522 on:** February 08, 2012, 01:10:00 PM »

those that are using the microsquirt system... if i choose wasted spark for FUEL ONLY is the MS looking for 1 0r 2 pulses per cycle?

750essess · « **Reply #523 on:** February 08, 2012, 03:26:13 PM »

fuel only shouldnt matter. the rpms will just be wrong. are u running the stock firmware or the extra code? i can tell u for sure with that info.

lucky · « **Reply #524 on:** February 08, 2012, 03:31:17 PM »

Quote from: midnight08 on February 06, 2012, 11:35:51 AM

Quote from: 750essess on February 06, 2012, 11:26:29 AM
That looks right. make sure you put the diodes in with the band toward the coils

Will do...

Quote from: lucky on February 06, 2012, 11:24:59 AM
Quote from: KB02 on February 08, 2008, 04:58:43 AM
For the lazy ones, here's the l;ink:

Fuel Injection Conversion.

Project's looking good so far man.

There was NO LINK saying "PROJECTS"
The only links were:
Home
Rentals
Trek
Specialized
Service
Parts & Accessories
About Us
Find Us

BTW...It is Option not optoin

Good luck on your project.

Straight from microsquirt... http://www.useasydocs.com/details/coiltrig.htm

Thanks for showing me. I appreciate it. Sincerely, Don

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Author Topic: Fuel injection conversion (edit) fixed a few things (Read 168021 times)