Community
Search
Notices
Gas Engines Questions or comments about gas engines can be posted here

Ignition for a DA50

Thread Tools
 
Search this Thread
 
Old 08-25-2013 | 12:02 PM
  #1  
MX240's Avatar
Thread Starter
Senior Member
My Feedback: (4)
 
Joined: Nov 2003
Posts: 1,032
Likes: 0
Received 1 Like on 1 Post
From: PoDunk City, NE
Default Ignition for a DA50

Anybody make a ignition for a DA 50 that has a decent spark to the plug.
I have been having a little trouble with my DA ignition and bought a new module for the motor and holding the spark plug to the case I am amazed
how little a spark these motors run on...practically nothing!
No wonder if the high speed needle is slightly rich they miss fire.
Old 08-25-2013 | 01:20 PM
  #2  
earlwb's Avatar
 
Joined: Aug 2009
Posts: 5,993
Likes: 0
Received 3 Likes on 3 Posts
From: Grapevine, TX
Default

Well the spark can look quite tiny, but if everything is setup Ok, it should work fine like that. The spark plug cap needs to be connected to the spark plug really well, as the sheild braid wire is the return ground connection. A loose spark plug cap will have it sparking between the cap and the spark plug too. That can cause the little ignition coil to go bad inside of the ignition module. Are you running the correct voltage level from the battery pack to the unit? You don't want to try to power the unit with more voltage than it was designed to handle or run it at max voltage either. Another thought is the battery pack powering the ignition unit, if the battery pack cannot supply the current needed to run the unit, it can behave badly as the current is marginal then. Battery packs have been known to be a problem like that, I happen to have a couple of off brand LIFE packs that work Ok but they cannot power a gas engine ignition unit properly.

CH-Ignitions makes the best ignition units and most everyone else likely tried to copy their units with varying degrees of success. I had recently had my Evolution 58cc gas engine converted over to a CH-Ignition system too.
Old 08-25-2013 | 02:26 PM
  #3  
MX240's Avatar
Thread Starter
Senior Member
My Feedback: (4)
 
Joined: Nov 2003
Posts: 1,032
Likes: 0
Received 1 Like on 1 Post
From: PoDunk City, NE
Default

Ya, thanks for the info...I have most of my gas experience with G-62's with mags. Years ago I ran Super Tigers with CH Ignition and man you could see and hear the plug SNAP when you had the plug out.
Old 08-25-2013 | 10:15 PM
  #4  
3136's Avatar
Senior Member
 
Joined: Oct 2010
Posts: 973
Likes: 0
Received 7 Likes on 7 Posts
From: Victoria, AUSTRALIA
Default

http://www.rcextremepower.net/DAIgnitions.html
Old 08-26-2013 | 08:11 AM
  #5  
MX240's Avatar
Thread Starter
Senior Member
My Feedback: (4)
 
Joined: Nov 2003
Posts: 1,032
Likes: 0
Received 1 Like on 1 Post
From: PoDunk City, NE
Default

Ok, Thanks Mark...all the way from "down under"....must be good.
Will give them a call.
Old 08-26-2013 | 08:31 AM
  #6  
 
Joined: Dec 2005
Posts: 1,369
Likes: 0
Received 1 Like on 1 Post
From: Auburn, GA
Default

How is this for a spark, About 9/16 in dry air and not under cylinder pressure running at 4,000 RPM.

Milton
Attached Thumbnails Click image for larger version

Name:	spark picture.jpg
Views:	142
Size:	86.5 KB
ID:	1913446  
Old 08-26-2013 | 11:38 AM
  #7  
earlwb's Avatar
 
Joined: Aug 2009
Posts: 5,993
Likes: 0
Received 3 Likes on 3 Posts
From: Grapevine, TX
Default

One thing to watch out for is you don't want to test a small ignition module to see how long of a spark you can get it to put out. That long spark causes the high voltage side of the coil to generate a really high voltage level. The extra high voltage tears down the coil wire insulation and shorts it out. They use simple varnish coated wire inside of the coil and that varnish is not intended to have a huge dialectric reistance to it. With modern automobile engines unplugging a spark plug wire or coil (usually the coil is right on top of the spark plug now) while the engine is running will promptly destroy the coil. A long time ago when I was in high school we used to hook up ignition coils and run them off a 12v battery and see how good of a spark we could get, and some coils did really good, but it did damage them and rendered them unusable in a car. You only want to generate sparks with the spark plug gap set properly.

Last edited by earlwb; 08-26-2013 at 11:39 AM. Reason: typo correction

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.