500 Two-Stroke Tech

500cc GP-Replica Tech Forums

Search  FAQ  Register Login
It is currently Tue Nov 13, 2018 9:45 pm

All times are UTC - 4 hours [ DST ]




Post new topic Reply to topic  [ 10 posts ] 
Author Message
 Post subject: Ignition coils
PostPosted: Sat Dec 23, 2017 3:30 pm 
Offline

Joined: Tue Sep 12, 2017 3:24 pm
Posts: 15
Thanks in advance for any recommendations on ignition coil replacement.... I see lots on eBay, are they OK to use?


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sun Dec 24, 2017 12:40 am 
Offline
- - - - -
- - - - -
User avatar

Joined: Sat Feb 04, 2012 7:36 am
Posts: 2566
Location: Eastern Ontario Canada
Do you mean used RD500 coils or new aftermarket coils Richard? Used ones will be fine as long as they test within limits.

There are plenty of aftermarket coils available. It might be wise to avoid anything questionable and stick with a reputable manufacturer, like Dyna.

If it is used RD500 coils are you after I may have some here.


John

_________________
1985 RZ500 1GE Spec
1985 RZ500 47X Spec Project Bike
1986 RG500 ATR
1986 NS400R
1987 TZR250
1988 Honda RC31
2007 DL650 VStrom
2014 Triumph Thruxton Modified


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sun Dec 24, 2017 8:34 am 
Offline
- - - - -
- - - - -

Joined: Thu May 19, 2016 10:55 am
Posts: 27
Hi

This is the response I got on my coil-question a while back.
viewtopic.php?f=5&t=14706

Oyvind


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sun Dec 24, 2017 10:23 am 
Offline

Joined: Tue Sep 12, 2017 3:24 pm
Posts: 15
Thanks for all the assistance.


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sat Jan 27, 2018 10:43 am 
Offline
- - - - -
- - - - -

Joined: Mon Feb 25, 2008 11:44 am
Posts: 345
Location: Northern Ireland
Why do dynatek dyna coils cost almost 10 times as much as one of these coils (for example); Can they be 10 times better? Can they even be 2 times better?


http://www.ebay.co.uk/itm/YAMAHA-RD-500-1984-500-CC-IGNITION-COIL/261036207060?hash=item3cc6f86bd4:g:GVEAAOxyB9RS1FpA

My own coils check out ok resistance wise but are a bit tired looking so was thinking of replacing them.
Any recommendations for plug wire??

https://www.ebay.co.uk/itm/HT-WIRE-BLACK-PVC-7mm-Multi-Strand-Core-H-T-Cable-cut-per-metre-RR50/381078727706?epid=1988578131&hash=item58ba0fec1a:g:pTYAAOSwiCRUgdNo


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Fri Feb 02, 2018 7:12 pm 
Offline
- - - - -
- - - - -

Joined: Mon Feb 25, 2008 11:44 am
Posts: 345
Location: Northern Ireland
has anyone ever tried any of those £20 ebay coils?


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sat Feb 03, 2018 1:24 am 
Offline
- - - - -
- - - - -
User avatar

Joined: Sat Feb 04, 2012 7:36 am
Posts: 2566
Location: Eastern Ontario Canada
trix wrote:
has anyone ever tried any of those £20 ebay coils?


I think you'd get exactly what you paid for. There is a reason quality is expensive.

_________________
1985 RZ500 1GE Spec
1985 RZ500 47X Spec Project Bike
1986 RG500 ATR
1986 NS400R
1987 TZR250
1988 Honda RC31
2007 DL650 VStrom
2014 Triumph Thruxton Modified


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sat Feb 03, 2018 7:16 am 
Offline
- - - - -
- - - - -

Joined: Mon Feb 25, 2008 11:44 am
Posts: 345
Location: Northern Ireland
Hi Silverstrom
I was just trying to figure out where the extra cost/quality in a coil is? For something like a coil that has no moving parts, if the resistances check out and it provides sufficient output volts, isn't that sufficient? Maybe it doesn't produce as strong a spark?? Is there a difference in the number of windings?


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sat Feb 03, 2018 3:37 pm 
Offline
- - - - -
- - - - -
User avatar

Joined: Sat Feb 04, 2012 7:36 am
Posts: 2566
Location: Eastern Ontario Canada
Consider this...you are paying 20 Pounds for it. It goes though production and a couple of wholesalers before you get it. The actual cost is likely about 5 Pounds. How much of that 5 Pounds goes into the windings? How much of that 5 Pounds goes into quality control and testing? I'd say most of that 5 Pounds goes into making it look like something it isn't. if you want quality spark, you need a quality coil. Car guys have known that forever. Bike guys seem slower to grasp that concept. How far do you think you'll get with a 5 Pound coil? When your bike is parked on the side of the road and you are walking home you'll be thinking about your 5 Pound coils and thinking about this conversation.

You should never be downgrading when replacing parts, especially electrical parts. If the most you can afford for a coil is 20 Pounds perhaps RD500 ownership is a bad decision.

_________________
1985 RZ500 1GE Spec
1985 RZ500 47X Spec Project Bike
1986 RG500 ATR
1986 NS400R
1987 TZR250
1988 Honda RC31
2007 DL650 VStrom
2014 Triumph Thruxton Modified


Top
 Profile  
Reply with quote  
 Post subject: Re: Ignition coils
PostPosted: Sat Feb 03, 2018 5:44 pm 
Offline
- - - - -
- - - - -

Joined: Mon Mar 07, 2016 6:55 pm
Posts: 252
Location: Maidstone, Ontario
In my limited experience in this hobby bargan bin parts are not really on the menu. Would they work, well maybe yes but why? I would put more faith in the grubby old stock coils than the new China ones any day. If the Dyna coils were 5% better and only 200 bucks I would consider that a bargain.

Either way you decide to go with this, good luck, hope you get it all sorted out.

_________________
Shake "N" Bake!


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 4 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group