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xs650 > > Motorcycle Systems > > Electrical > > weak power coming to spark plugs |
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weak power coming to spark plugs
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dustin.kerber Full Member
Joined: Apr 10, 2006 Posts: 31 Location: Fargo, ND
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Posted: May 17, 2006, 10:57 pm Post subject: Re: weak power coming to spark plugs |
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Thanks Phred. I was planning on trying that out tomorrow, but i wasnt sure if i would mess anything up by not having it plugged in. I will give it a try tomorrow and post the results.
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dustin.kerber Full Member
Joined: Apr 10, 2006 Posts: 31 Location: Fargo, ND
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Posted: May 18, 2006, 11:08 am Post subject: Re: weak power coming to spark plugs |
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Well, I disconnected the alternator so that I had full voltage to my coils. I tested each side and.... no change in spark.... It is still so weak that I can barely get anything by putting a screwdriver into the plug cap and holding it ~1mm from the engine.
Back to square one. In a way, I am almost relieved, because now I know it is a component in the ignition system, and not wiring or some other electrical component.
Let me recap on the state of the ignition system components.
plugs - clean
condensor pack - new (could be faulty new ones, but I find it hard to believe that both condensors in the new pack would be bad)
left coil - new from mikesxs.com
right coil - old but worked fine up to point of bike dying
points - not burnt or pitter, testing 0 ohm from each incoming wire to engine when closed
plug wires and caps - new
I am also going to ordering some new points and plugs.
Thanks to you guys for taking such a personal interest in this... This site and you have been what really made me a fan of this bike, even if doesn't work.
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Phred Full Member
Joined: Sep 11, 2005 Posts: 110 Location: St. Louis, MO metro area
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Posted: May 19, 2006, 1:42 am Post subject: Re: weak power coming to spark plugs |
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When I first fired up my bike after hauling it home, I hooked a battery straigt to the ignition, actually rode it around the block with the battery duct-taped to the frame where the battery box used to be! Mine was pretty easy since most of the harness had been hacked up, so I just ditched what was left-simplifies troubleshooting.
_________________ "Phred"
'75 "Project YamaHog" or "Project Yamabob" or my wife's favorite "pile of crap in the garage" |
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Wulf Full Member
Joined: Feb 19, 2005 Posts: 215 Location: Augusta, Georgia
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Posted: May 23, 2006, 6:23 pm Post subject: Re: weak power coming to spark plugs |
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Hey Dustin, any luck yet with the bike?
Wulf
_________________ If it ain't in the air, sliding sideways, or knee draggin', it ain't racing! |
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dustin.kerber Full Member
Joined: Apr 10, 2006 Posts: 31 Location: Fargo, ND
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Posted: May 24, 2006, 1:19 am Post subject: Re: weak power coming to spark plugs |
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Havent had much chance to try in the last couple days. The cam chain tensioner cap imploded when I attempted to take it off... I am guessing that the last owner torqed on it with a wrench... Besides a junk yard, any idea where I could get a replacement, being as the part was discontinued?
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jayel 650Rider Supporter
Joined: Apr 16, 2006 Posts: 3417 Location: SE Iowa 1974 TX650A
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Posted: May 24, 2006, 8:40 am Post subject: Re: weak power coming to spark plugs |
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see what voltage you get by jumping around the handlebar kill switch, if it's dirty you'll have weak or no spark
_________________ all it takes is time and money -- Where are we going and why are we in this hand basket? |
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dustin.kerber Full Member
Joined: Apr 10, 2006 Posts: 31 Location: Fargo, ND
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Posted: June 1, 2006, 6:25 pm Post subject: Re: weak power coming to spark plugs |
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well... i just got done riding... yes... riding.... WAHOOOOOO!
I replaced the points and it did the trick. The funny part is that the old ones tested good and had perfect contact faces with correct gaps. I put the new ones in, though, and it fired right up. With all of the work I have done on it, carbuerator rebuilds and such, it is running better than ever before! Thank you to everyone who helped!
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