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› Bad SparkPlug? *PIC* UPDATE*
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Bad SparkPlug? *PIC* UPDATE* (Read 17 times)
a56kuser
Ex Member
Bad SparkPlug? *PIC* UPDATE*
04/13/05 at 22:14:12
hey i finally managed to get hte spark plug out....
my bike has some starting problems and it would crank but it wouldnt start up......first thing i thought it was a bad spark plug but i wanted to get your opinion on this first
heres what it looks like...... its pretty bad but do you think this would cause my bike from not starting?? oh and when i smelt it , it smelt like Oil.... is that normal?
any help would be great thanks
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WD
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Re: Bad SparkPlug? *PIC*
Reply #1 -
04/13/05 at 22:30:12
Change the plug. The center electrode looks like it is rounded off. Rounded electrode produces a very weak spark, sometimes no spark at all. Plugs are cheap, if you get it at an auto parts store instead of a bike dealership. A slight oil smell is not that unusual, most vehicles used plugs will smell like burnt oil. There is no such thing as a perfectly sealed cylinder, there will always be a slight oil vapor come up from the crankcase or in through the intake valve. Your plug doesn't appear to have an abnormally high amount of oil fouling. It just looks like a worn out plug.
FYI, I have had my Savage for just over 7 years. It is on plug number 5 I think, but it has sat up for over 3.5 years. When mine wouldn't start, throw in a new plug. Would always fire off with a new plug. The Savage is a "lean burn" powerplant. Lean burn engines tend to wear out sparkplugs fairly rapidly. Lean fuel charge is extremely hot, and the heat is what erodes the electrode tip.
-WD
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a56kuser
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Re: Bad SparkPlug? *PIC*
Reply #2 -
04/13/05 at 22:47:28
thanks for the info...ill go and buy the spark plug tomorrow.
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WD
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Re: Bad SparkPlug? *PIC*
Reply #3 -
04/13/05 at 22:52:56
If your battery is good and hot, then the old plug should be the problem. BUT, before you put the new plug in the head, I suggest you test it. Hook the lead to the plug, use insulated channel locks or such to hold the plug against a cylinder fin, and have someone hit the starter button. If you don't have someone to help, you'll need to cable tie the clutch to the grip, otherwise the engine won't crank (stupid safety switch nonsense). The plug should produce a fat blue-white spark. If the new plug is gapped right and you get any other spark color, you need to do some further testing. But, my money is on the old plug. My wife's 800 Intruder is the same way, once the plugs gets 6 months to a year on them, time for new plugs.
-WD
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sluggo
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Re: Bad SparkPlug? *PIC*
Reply #4 -
04/13/05 at 23:47:33
WD wrote
on 12/31/69 at 16:00:04:
Hook the lead to the plug, use insulated channel locks or such to hold the plug against a cylinder fin, and have someone hit the starter button. -WD
it's actually funner to watch as the button pusher if theydon't use insulated channel locks.
ok i'm a sick b.
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SINGLES RULE, HARLEYS DROOL
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klx650sm2002
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Re: Bad SparkPlug? *PIC*
Reply #5 -
04/14/05 at 02:48:43
If You are changing the plug try iridium, I use a DPR9EIX-9, You would probably want an 8, the second 9 is just the plug gap it comes with in 1/10ths of a mm.
Clive W
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Red_Wine
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Re: Bad SparkPlug? *PIC*
Reply #6 -
04/14/05 at 06:42:30
sluggo wrote
on 12/31/69 at 16:00:04:
it's actually funner to watch as the button pusher if theydon't use insulated channel locks.
ok i'm a sick b.
been there, done & seen that
I'm another sick SOB
RW
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a56kuser
Ex Member
Re: Bad SparkPlug? *PIC*
Reply #7 -
04/14/05 at 11:31:03
wow it seems like there is alot of different type of spark plugs i could use..... the only place i have local around here is a checkers auto and some moped shop.......hopefully they have something i can use.
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a56kuser
Ex Member
Re: Bad SparkPlug? *PIC* UPDATE*
Reply #8 -
04/14/05 at 16:20:30
hey everyone i managed to get ahold of the NGK spark plug (bought 2 just incase) replaced it and first crank the bike started up... Thanks to everyone that helped.. now we know what a bad spark plug could look like lol.
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Lee
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Re: Bad SparkPlug? *PIC*
Reply #9 -
04/14/05 at 19:01:52
<The center electrode looks like it is rounded off. >
Man, you must have a great set of eyes! I can't even see the electrode in that picture.
Being old sucks!
Lee
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Paladin.
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Re: Bad SparkPlug? *PIC* UPDATE*
Reply #10 -
04/14/05 at 19:44:08
The Gap, enhanced.
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a56kuser
Ex Member
Re: Bad SparkPlug? *PIC* UPDATE*
Reply #11 -
04/14/05 at 20:33:49
for future purposes here is a clearer shot
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WD
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Re: Bad SparkPlug? *PIC* UPDATE*
Reply #12 -
04/15/05 at 01:06:28
If you look REAL close, you'll see a slight slope, and the edges are no longer "crisp" 90 degree angles. And in the up close picture, you can tell the sidestrap ( L shaped electrode) has a worn center. Savage (at least mine), and VS800 Intruder (at least my wife's) are extremely touchy where the plug is concerned.
-WD
Oh, and I have crappy vision, my glasses scrip is almost 6 years old. I've just changed hundreds of bike plugs over the years, so a slight anomaly tends to jump out at me. Comes from having had way too many touchy bikes come through my shops.
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Lee
Ex Member
Re: Bad SparkPlug? *PIC* UPDATE*
Reply #13 -
04/15/05 at 15:08:38
Much better picture. Even I can see it now.
Is that a normal amount of carbon fluff for a Savage?
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Savage_Greg
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Re: Bad SparkPlug? *PIC* UPDATE*
Reply #14 -
04/16/05 at 08:02:01
Good closeup shot.
Not saying that isn't the problem, but I don't think the electrodes on that plug are really that bad. It is just an old rusty plug that was rode hard and put up wet. It was probably running just fine when it was parked, but time took its toll. That's all.
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