SV650.org - SV650 & Gladius 650 Forum - View Single Post - Help with 04 pointy front cylinder failure

timwilky · 05-09-13, 08:37 AM

I think you need to approach this methodically.

Your description points to an electrical rather than mechanical failure so analyse the components and function of the ignition system.

Firstly, consumables are such because they are designed with a target life, treat them as having a life, they are no different to humans. We have infant mortality, sudden unexpected middle age death followed by old age. So manufacturing fault, accidental damage and simply worn out.

Spark plugs do fail under the recommended replacement threshold. Coil packs surprisingly do fail. So I would investigate these first. Change the plugs or even swap them front to back, any change? no, swap coil packs, any change. (no move the coil pack feeds, I recall the SV uses a lost spark so it should still fire the fueled cylinder).

good luck

05-09-13, 08:37 AM	#8
timwilky Member Mega Poster Join Date: Mar 2004 Location: Not in Yorkshire. (Thank God) Posts: 4,116	Re: Help with 04 pointy front cylinder failure I think you need to approach this methodically. Your description points to an electrical rather than mechanical failure so analyse the components and function of the ignition system. Firstly, consumables are such because they are designed with a target life, treat them as having a life, they are no different to humans. We have infant mortality, sudden unexpected middle age death followed by old age. So manufacturing fault, accidental damage and simply worn out. Spark plugs do fail under the recommended replacement threshold. Coil packs surprisingly do fail. So I would investigate these first. Change the plugs or even swap them front to back, any change? no, swap coil packs, any change. (no move the coil pack feeds, I recall the SV uses a lost spark so it should still fire the fueled cylinder). good luck __________________ Not Grumpy, opinionated.