If SV1000 had a much heavier flywheel,

[kawashima]

will it run at low rev like cruiser motor?
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own:2020 Serow 250
owned: 2012 YB125SP, 2008 TDM900, 2005 W650, 2002 LS125R, 2002 CB400SF, NS50F, C50 / Trip to UK(2009), Hokkaido touring(2013)

[EnergyInducti...]

Well no, it just means it would take longer to build up revs, And would keep its revs better when the engine should be slowing down even under full power (E.g. up a hill in a much taller gear)
low revs are due to a longer stroke, which increases instability in the crankshaft as revs increase.
Correct me if I'm wrong here! I only know what I've learnt from my own studies lol
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Riding: Yamaha RXS100
Aiming for : RD350 + Test
Dream bike: Suzi RG500 Gamma

[Robby]

A heavy flywheel can make the motor (but not the transmission) less snatchy and smoother at lower engine speeds, so it could make an SV1000 run more smoothly at lower revs.

However, it would be slower to rev and to slow down. Generally a low revving motor would have a longer stroke combined with a heavier flywheel, and of course the correct cams, fuelling and electrics to suit.

I can see why you're thinking about it, I always find Japanese engines too bloody revvy. I'd like to get a big Japanese V-twin cruiser and get some weight into the flywheel one of these days, but that's not so easy in itself. Modern bikes don't have a proper flywheel like cars, although some classic bikes did. You would probably need to find a way to add weight to the clutch basket and/or balancer mechanism.

[kawashima]

[Frost]