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14-06-18, 07:39 PM | #1 |
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sv650 AL7 tick after sparkplugs change
Hi guys,
Just replaced my sparkplugs the other day and after a quick run i`ve noticed some kind of intermittent ticking noise coming from the engine, at idle. It goes away when i rev it a bit. Engine pulls the same as before changing the sparkplugs. The ticking is not loud and it comes after one minute or so after i start the engine. I haven`t torqued the plugs; used the hand tight method + 1/4 turn. Any ideas what can cause the ticking ? Thanks a lot. |
15-06-18, 07:11 AM | #2 |
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Re: sv650 AL7 tick after sparkplugs change
Metal things can make ticking noise as they warm up or cool down, don't know why this would appear after plug change though. Maybe as Seeker says a HV spark leaking somewhere, maybe check plug caps are firmly pushed on, if not may have spark jumping to to sparkplug top terminal. has the lead been loosened in the cap during the change and spark having to jump a gap inside the cap housing.
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15-06-18, 08:52 AM | #3 |
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Re: sv650 AL7 tick after sparkplugs change
The 1/4 turn is really for used plugs, I'd say new ones need at least another 1/4 turn if not a bit more.
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15-06-18, 09:19 AM | #4 | |
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Re: sv650 AL7 tick after sparkplugs change
Quote:
http://www.ngk-sparkplugs.jp/english...q18/index.html |
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15-06-18, 02:28 PM | #5 | ||
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Re: sv650 AL7 tick after sparkplugs change
Quote:
Quote:
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15-06-18, 02:40 PM | #6 | |
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Join Date: Feb 2017
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Re: sv650 AL7 tick after sparkplugs change
Quote:
I can still hear the ticking at idle but quieter. Now i have to do the same with the rear head but i have to take some petrol out of the tank or ride it till the tank goes half full. Possibly i`ve got the plugs to lose in the first place ? PS: used the OEM sparkplugs. SPARK PLUG (MR8E-9) 09482-00646 Thank you all. |
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15-06-18, 03:19 PM | #7 |
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Re: sv650 AL7 tick after sparkplugs change
Should've left them well alone.
Spark plugs last much longer than manufacturers would have you believe. Its almost as if they want you to keep buying lots of their product or something... |
15-06-18, 03:21 PM | #8 |
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Re: sv650 AL7 tick after sparkplugs change
The other thing is, I've never heard an SV that doesn't tick intermittently at idle. The SV motor is notorious for its mechanical noise, and for the randomness with which the various noises can come and go.
My own K6 with 25,000 miles will sometimes tick and tap merrily at idle, and other times will be mechanically silent, and there's no rhyme or reason for the difference. Doesn't matter if it's hot or cold, has done a long run or a short run, or whatever. It's always done it, ever since I got the bike with 8,000 miles up. It's because, unlike an inline twin or four-cylinder bike, the SV has 2x very long camchains, and doesn't have a big chunky cylinder block to dampen mechanical noises. |
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