faulty ignition coil? - Yamaha Raptor Forum
 

» Recent Threads
Raptor 700 - Continous...
Today 05:09 AM
by Monk
Last post by t web2007
Today 06:36 AM
1 Replies, 6 Views
what am i not doing right
06-30-2014 02:58 PM
Last post by red baron
Today 04:02 AM
13 Replies, 278 Views
WHAT DID U DO TO YOUR...
02-19-2008 11:28 PM
by dl700
Last post by Pacific Barbarian
Today 03:55 AM
5,008 Replies, 233,422 Views
Checked Cam Timing, What...
07-21-2014 07:36 PM
Last post by wayfastf150
Today 03:46 AM
7 Replies, 62 Views
01 660 shifter stuck
Today 01:30 AM
Last post by AKrider907
Today 03:32 AM
6 Replies, 49 Views
does my fan work?
07-21-2014 12:08 AM
Last post by raptor660r101
Today 02:18 AM
9 Replies, 114 Views
GTP Trip to Florence...
05-11-2014 08:10 PM
Last post by Nate700
Today 01:45 AM
120 Replies, 1,854 Views
raptor died and wont...
07-19-2014 06:13 PM
Last post by QuadManiac
Today 01:30 AM
6 Replies, 107 Views
What size pilot should I...
07-21-2014 09:49 AM
by LJN
Last post by QuadManiac
Today 01:20 AM
2 Replies, 49 Views
full throttle problem
07-18-2014 05:40 AM
Last post by QuadManiac
Today 01:18 AM
6 Replies, 92 Views
» Sponsors
Go Back   Yamaha Raptor Forum > Raptor 660 Categories > Raptor 660 Maintenance

Reply
 
LinkBack LinkBack Thread Tools Display Modes
Old 06-30-2009, 10:47 PM   #1 (permalink)
Member
 
jwilson48's Avatar
 
Join Date: Feb 2009
Location: missouri
Posts: 58
Default faulty ignition coil?

ok guys when testing the ignition coil when testing the primary the ohms seemed to fluctuate alot and would hold alot higher than they should be. however the secondary side was reading just barely higher than the range they should have been in. so it would seem to make sense that it wouldnt be getting enough juice into the coil, but enough would be going to the spark plug. am i way off here? does the ignition coil definetly need to be replaced? should it still be getting some spark? cuz it was but has gotten worse and now no spark at all.
jwilson48 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-01-2009, 12:32 AM   #2 (permalink)
Master of the Electron

 
QuadManiac's Avatar
 
Join Date: Apr 2007
Location: San Diego, CA
Posts: 12,620
Default

Did you measure resistance with the orange wire disconnected?
__________________
'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'02 Honda 400ex, DiamondJ +3 A-arm widener, Lonestar anti-vibe
3 scooters - 150, 180, 250
'73 Yamaha CT3-175 Enduro (currently under restoration)
'08 Can-Am Spyder SE5 - my Baby!
And the newest toy destined to suck up all my spare time and money: 2000 Jaguar XJ8
QuadManiac is offline   Reply With Quote
Old 07-01-2009, 11:55 AM   #3 (permalink)
Member
 
jwilson48's Avatar
 
Join Date: Feb 2009
Location: missouri
Posts: 58
Default

yes
jwilson48 is offline   Reply With Quote
Old 07-01-2009, 01:24 PM   #4 (permalink)
Master of the Electron

 
QuadManiac's Avatar
 
Join Date: Apr 2007
Location: San Diego, CA
Posts: 12,620
Default

Does the resistance vary as you move things around or just over time with the leads held steady? I can't imagine a scenario (with a GOOD coil) in which the resistance should vary much at all either over time or by moving the wire around...

If the coil has a finite capacitance, then you should see the resistance change a bit over time as that capacitance charges up, but the measurement should settle out to a stable value after a short time.
__________________
'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'02 Honda 400ex, DiamondJ +3 A-arm widener, Lonestar anti-vibe
3 scooters - 150, 180, 250
'73 Yamaha CT3-175 Enduro (currently under restoration)
'08 Can-Am Spyder SE5 - my Baby!
And the newest toy destined to suck up all my spare time and money: 2000 Jaguar XJ8
QuadManiac is offline   Reply With Quote
Old 07-01-2009, 11:03 PM   #5 (permalink)
Member
 
jwilson48's Avatar
 
Join Date: Feb 2009
Location: missouri
Posts: 58
Default

k thanks sounds like a faulty ignition coil to me then.
jwilson48 is offline   Reply With Quote
Old 07-02-2009, 11:46 AM   #6 (permalink)
Master of the Electron

 
QuadManiac's Avatar
 
Join Date: Apr 2007
Location: San Diego, CA
Posts: 12,620
Default

From your description so far, I'd agree. Any chance of finding a friend that will let you swap to test?
__________________
'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'02 Honda 400ex, DiamondJ +3 A-arm widener, Lonestar anti-vibe
3 scooters - 150, 180, 250
'73 Yamaha CT3-175 Enduro (currently under restoration)
'08 Can-Am Spyder SE5 - my Baby!
And the newest toy destined to suck up all my spare time and money: 2000 Jaguar XJ8
QuadManiac is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 06:37 AM.




Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.1
Content Relevant URLs by vBSEO 3.6.1
RaptorForum.com is an independent Yamaha enthusiast website. Content on RaptorForum.com is generated by its users and RaptorForum.com is not in any way affiliated with Yamaha Motor Corporation, U.S.A.
Inactive Reminders By Mished.co.uk and FTP-Anime.com