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Search: Posts Made By: boating around
Showing results 1 to 25 of 40
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Forum: Engine Conversions
08-02-2013, 12:36 AM
Replies: 8
Views: 14,375
Posted By boating around

RE: diy cdi

well well well

Mates chinese quad broke down and while doing a search a schematic i stumbled by this old thread of mine.
Happy now i didn't return at that time, but now that i'm here.

"If...
Forum: Engine Conversions
01-11-2011, 02:34 PM
Replies: 557
Views: 144,074
Posted By boating around

RE: Complete new CDI - website open

Run time is dependant on batteries capacity. My cdi's draw between 450 and 500 mAh. Therefore I get just over an hour from a 500mAh battery pack.
Forum: Engine Conversions
08-08-2009, 04:23 AM
Replies: 104
Views: 12,115
Posted By boating around

RE: xyz cdi

TDC is when the piston stops moving up, or the moment the dial gauge stops moving. During the rotation where the dial gauge does not move the crank has passed tdc and big/little end play is being...
Forum: Engine Conversions
08-08-2009, 04:13 AM
Replies: 104
Views: 12,115
Posted By boating around

RE: xyz cdi

Is it missing or detonating? My Ryobi starts detonating at 22 degrees at WOT and could be mistaken for missing.

Dave
Forum: Engine Conversions
08-07-2009, 08:19 PM
Replies: 8
Views: 14,375
Posted By boating around

RE: diy cdi

I will dedicate this post to the cdi here: http://www.modelbouw.gompy.net/newcdi/newcdi.htm

With all respect to the designer I feel it necessary to outline some errors I found with this...
Forum: Engine Conversions
08-06-2009, 10:00 AM
Replies: 8
Views: 14,375
Posted By boating around

RE: diy cdi

Ignition curves. 2 vs 4 stroke.

The most perplexing questionfor many people is why a 2 stroke has an ignition advance curve totally the reverse of a 4 stroke.
A typical 4 stroke will start...
Forum: Engine Conversions
08-06-2009, 08:10 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

I wonder if it occured to John yet that I didn't read his post until today. :eek:

Anyway, I won't be engaging in any more of this nonsense. I'm about getting a cdi working not causing trouble.
...
Forum: Engine Conversions
08-06-2009, 07:39 AM
Replies: 8
Views: 14,375
Posted By boating around

diy cdi

This thread is for all things related to diy cdi conversions. Circuits, ignition curves 2 and 4 stroke, pictures, links etc.

In the not to distant future I will post some info on an online diy...
Forum: Engine Conversions
08-06-2009, 06:59 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Doesn't time "fly" when your having fun, no pun intended. :D

You have no idea (said that before) what i've been doing? How can you make such a rediculous statement?

If you are serious you...
Forum: Engine Conversions
08-06-2009, 05:43 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Just in case John was wondering, I thanked bigboat for posting the cdi in an email around the time I started building it.

Have a nice day
Forum: Engine Conversions
08-06-2009, 05:18 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

1) I was refering to what was easier for me.
2) The line of hex "I" posted is correct.
3) The sensor connections were in fact wrong and have since been corrected, in red. Not to mention led...
Forum: Engine Conversions
08-06-2009, 02:00 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

tm curve
http://www.pvl-zuendungen.de/en/fb_tm.htm
Forum: Engine Conversions
08-06-2009, 12:15 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

roughly drawn curves
Forum: Engine Conversions
08-05-2009, 11:24 PM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

I have a number of books here on 2 stroke theory written by respected people in the know. I could go on and explain but suggest you use your favourite search engine and all your questions will be...
Forum: Engine Conversions
08-05-2009, 08:26 PM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Finaly sorted out enough of the bugs to get a motor running. Got the help of someone more experienced in electronics. He checked my original work very closely. My work is good, I had done everything...
Forum: Engine Conversions
07-01-2009, 10:03 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

LOL

Another ERROR

Hall effect in pins as marked on component layout are all wrong.

Been down this road before, had I have known LOL

Dave
Forum: Engine Conversions
06-30-2009, 10:42 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Well I'm still sitting here wondering which parts are correct.

What polarity of led strobe pins is correct?

What other errors I may have missed.

I have made the thing as best I can...
Forum: Engine Conversions
06-30-2009, 10:09 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

I post errors when I see them, makes it easier for others.

People on this forum not very helpful.

Dave
Forum: Engine Conversions
06-30-2009, 10:07 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Why does John show different hex????

Dave
Forum: Engine Conversions
06-30-2009, 10:05 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

I see video of model, no proof of working cdi??????????

Dave
Forum: Engine Conversions
06-30-2009, 07:12 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Unziping to folder and opening with programming software sounds easier and should work???

First time I programmed pic about 7 years ago I had an issue. I was viewing japanese web page using...
Forum: Engine Conversions
06-30-2009, 06:01 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

I haven't read that anyone else has noticed the errors, particularly the strobe polarity. makes me wonder how many people have successfuly "completed" this project.

I wonder if old cdi might be...
Forum: Engine Conversions
06-30-2009, 05:57 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

C5 and C7 do need to be on list as schematic shows polarised and parts list says non polarised????

First line of your hex differs slightly to mine, why??? Hope you have written it correctly....
Forum: Engine Conversions
06-30-2009, 04:17 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Would I be correct in saying the led strobe polarities as marked on component layout are wrong.

There are 3 pins, center pin marked as + goes to transistor. Two outside pins marked as - are on...
Forum: Engine Conversions
06-30-2009, 03:52 AM
Replies: 1,445
Views: 295,008
Posted By boating around

RE: New CDI - opensource project JMJ and Bigboat

Just going in circles now. Still nothing. Picprog4u sayes its programming with no errors. Pic is getting 5V. Programmed in and out of circuit. I have programmed many pics of various type and some...
Showing results 1 to 25 of 40
 
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