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Craig380 · 11-09-19, 05:59 AM

Hi and welcome.

Start with the basics - is the oil level good? Air filter clean? Especially check the spark plugs are good and that they are fitted snugly, because they can and do loosen off with usage. Do NOT gorilla them, the tightening torque is 12nm / 8lb-ft, or 1/12th of a turn from finger-tight for used plugs (1/2 a turn from finger tight for brand-new, first-time-fitted plugs).

If all those check out OK, is the battery charging? Could be the fuel pump filter is clogged with crap too.

Good luck and let us know how you get on.

11-09-19, 05:59 AM	#2
Craig380 Member Mega Poster Join Date: May 2015 Posts: 1,237	Re: Sv650 running very rough at all RPMs Hi and welcome. Start with the basics - is the oil level good? Air filter clean? Especially check the spark plugs are good and that they are fitted snugly, because they can and do loosen off with usage. Do NOT gorilla them, the tightening torque is 12nm / 8lb-ft, or 1/12th of a turn from finger-tight for used plugs (1/2 a turn from finger tight for brand-new, first-time-fitted plugs). If all those check out OK, is the battery charging? Could be the fuel pump filter is clogged with crap too. Good luck and let us know how you get on.