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  #61  
Old 05-19-2016, 10:52 AM
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Sorry.. I don't understand the question...
CDI are ALL DC (otherwise it'd be hard to charge the capacitor in the first place)
that's why they usually sit right next to a rectifier

And yes, you still need a coil (the capacitor or thryristor in this case) the CDI module is basically the charging circuit only..

if you talk about the charging coil (not the ignition coil) then yes.. you also should have one.
Since although the Capacitor will charge happily from a battery and that's enough to provide a spark..
a chargingcoil is more reliable;
it'd be a pain if your tank's full and you're still stranded in the middle of nowhere because the battery died

talking of which.. make sure you get a good rectifier unit as well.. the small single diodes that generally are mounted to industrial engines like that may not be sufficient.

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Old 05-19-2016, 11:13 AM
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I have attached the pictures of what the one i have which came from a Endress gen-set ... The black and red leads are for the killswitch .. the 4 other wires i cant identify ..

Tho im kinda confused then .. at least to what the AC / DC refers to ? Since online , there are examples of both AC and DC , like this here :
http://www.sascooters.co.za/wp-conte...8/acdc-cdi.png

And going from that it refers to the way it is powered ?

Anyways , yes i mean on the ignition coil . So the CDI creates an impuls with the charged up capacitor , which then discharges into the ignition coils primary to create the spark ?
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  #63  
Old 05-20-2016, 01:19 PM
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Il figure that out later tho this is what i have envisioned :

IF i can find out a way to get this CDI working , il use this http://www.njuskalo.hr/moto-dijelovi...oglas-10587933

An ignition coil off a scooter .

So , Sensors > Arduino > CDI > Igniton coil ?

Also , im worried that the throttle body is going to be too big ..
  #64  
Old 05-21-2016, 08:53 AM
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Todays work ! It really is ghetto mounted , but it works !
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  #65  
Old 05-22-2016, 07:38 AM
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Great work so far! You definitely want that complete matched assembly for the integrated idle air control valve. It would be hard to get it to start without that control. I can't read the language your links are in, is that a return style fuel system on that motorcycle?
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  #66  
Old 05-22-2016, 08:05 AM
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Quote:
Originally Posted by Toycrusher View Post
Great work so far! You definitely want that complete matched assembly for the integrated idle air control valve. It would be hard to get it to start without that control. I can't read the language your links are in, is that a return style fuel system on that motorcycle?
It does seem like it is , tho it is expensive ... im currently in talks with karte molim on a cheaper throtle body assembly ..

Tho question : cant i just move the throttle valve while starting it ( open the throttle ) and then phisically adjust the idle ? .

I suppose the idle valve does just that but automatically ?
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Old 05-22-2016, 02:31 PM
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The idle air control valve is usually a helix or spiral gear motor with a feedback circuit. It moves in steps and is quite helpful in starting and maintaining an idle. It let's you richen the fuel mixture without dumping extra fuel in that could cause the engine to run away
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Old 05-22-2016, 04:30 PM
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Quote:
Originally Posted by Toycrusher View Post
The idle air control valve is usually a helix or spiral gear motor with a feedback circuit. It moves in steps and is quite helpful in starting and maintaining an idle. It let's you richen the fuel mixture without dumping extra fuel in that could cause the engine to run away
So if i got it right , i hook its power up and the signal to the controller (since the feedback circuit is usually a part of the ECU ? ) and depending on throttle position ( 0 to 5% ) its going to adjust itself to match the AFR ?
  #69  
Old 05-22-2016, 09:04 PM
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I'm used to reading efi systems in operation while troubleshooting engines with running Issues. IAC motors are stepper motors and the computers regulate them to control airflow. As I've seen from various manufacturers, they pulse the valve to adjust it further open or closed when necessary, otherwise it sits idle. What the computer sees from the feedback circuit, I have no clue. Sorry
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Old 06-19-2016, 09:49 AM
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Hey guys , sorry for the slow progress ..

Some trouble recently , and im needed home , so much that i cant do anything but help around . ( mother was on a knee surgery ... )

As of the EFI project , im trying to get some $$ to get the parts i need , in the meantime experimenting with the Arduino programme .
  #71  
Old 06-19-2016, 01:46 PM
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Thanks for the update.
Good for you taking care of Mom!
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Old 06-20-2016, 05:37 AM
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Quote:
Originally Posted by chancer View Post
Thanks for the update.
Good for you taking care of Mom!
+1!
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Old 06-20-2016, 08:21 PM
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I'm curious to how to how this turns out. I personally would of gone with microsquirt just for size, ease of operation, ect but I have heard of people doing it this way. I came across a guy in NJ with a neat platform called rusefi that is open source and maybe a bit similar to this. Has some pretty good success and a few people willing to help it along the way. Keep up on it and hope it works out. Might check out Diyautotune for a individual injector bung setup they have. Would make the install pretty easy I'd think.

---------- Post added at 08:21 PM ---------- Previous post was at 08:18 PM ----------

Here is the link for ease https://www.diyautotune.com/product/...ev6-injectors/
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  #74  
Old 08-23-2016, 11:33 AM
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Well , update coming tomorrow ... looks im on a hunt for a new engine to work on
  #75  
Old 08-23-2016, 07:21 PM
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I hope you blew it up.
Cause other wise someone Stole it! and that is LAME!
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  #76  
Old 08-25-2016, 03:05 PM
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Here is the thing .

All the work i have planned , and the what i managed to do , is for nothing .

While i was away and didnt check the engine all that often since i keep it at my grandfathers place ( big garage and a lot of tools so .. ) , they were moving stuff.

Pretty much cleaning up and what not , i put the engine on the table , and someone managed to knock it off , the engine landed on its side and punctured the block . Reason it got punctured is that as they were moving stuff , there was steel piping and block on the floor , i presume thats how it broke .

Il get some pictures tomorrow ..

In the meantime , i found this as a candidate replacement :
rhttp://www.njuskalo.hr/moto-agregati...oglas-19226261

Does anyone know a thing or two about these Rotax engines ?
  #77  
Old 08-25-2016, 03:14 PM
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Ive always liked em as a company. The 583 rotax was a great engine for years used by many. Is this a four stroke? How many cylinder s.
  #78  
Old 08-25-2016, 03:49 PM
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Quote:
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Ive always liked em as a company. The 583 rotax was a great engine for years used by many. Is this a four stroke? How many cylinder s.
That is a type 500 (499cc ) 2stroke . 17PS @ 4k RPM . Also , 2 cylinder inline as it seems.
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