Overrev?

[crzydood17]

Ok so I was hitting a freeway onramp the other day and playing around and I took the tach into the red... Bike seems fine but im worried about it, has anyone ever overreved the engine badly even for a split second and had problems? Im thinking I might get a shift light or a spark rev limiter...

[werase643]

if you hear ball brgs rattling in a tin can.....back off with the right wrist

you don't need to buy anything

[evilimprdr]

10.5 is my max. When ever I know I'm going to go that high I just keep one eye on my tach. As long as your not making it a habit of going over 11 you'll be fine. Doesn't sound like to me you spend a lot of time that high in the revs so your fine.

[ben2go]

If everything is running and sounding fine,then it should be ok.Don't make it a habit or you could spin bearings or break/weaken the valve springs.

[crzydood17]

does anyone know what the limiting factor on revs are for this bike? other than valve springs... whats everything made out of? Im a engine nut and would love to throw in some TI valves and like cbr springs and upgrade the pistons/rods to rev it a bit more... is the crank cast or forged? i would guess to spin 10 it would have to be forged but who knows what craziness suzi makes up.

[burning1]

On my race bike, I rev the engine till the valves make their metallic rattling noise, and I shift. I doubt you harmed anything.

[crzydood17]

i kinda hit 11 or 12 

[Twisted]

After about 9k on my GS it isnt doing anything other than making noise so there is no point redlining it.

[crzydood17]

really? man maybe the po did something to mine but i pull pretty well up till 10.5 more than shifting to 2nd at least...

[ben2go]

does anyone know what the limiting factor on revs are for this bike? other than valve springs... whats everything made out of? Im a engine nut and would love to throw in some TI valves and like cbr springs and upgrade the pistons/rods to rev it a bit more... is the crank cast or forged? i would guess to spin 10 it would have to be forged but who knows what craziness suzi makes up.

The GS uses plain bearings and other higher reving bikes use roller bearings on the connecting rods, mains,and other internal shafts.I'm not sure on the cams.I thing they have a machined in journal like the GS.Also the pistons are usually forged aluminum and the crankshaft is either forged or billet steel.The GS has cast connecting rods and crankshaft.With an extreme amount of one off parts the GS could make 100+ horsepower,but it'd cost as much as buying a new sport bike.

[burning1]

Are you sure about that? I'm under the impression that plain bearings are almost ubiquitous on modern multi-cylinder engines, and that roller bearings are generally only seen on smaller displacement engines, in more lightly loaded components (E.g. camshafts on dirt bikes.)

[crzydood17]

theres no way the crank and rods are cast... i know in cars at least cast starts to shatter at 6-7k rpm

[sledge]

Quite a few`interesting` comments   but I am going to wait a bit and see what else is said before I stick my oar in.

[Cosimo_Zaretti]

Well I haven't redlined it in every gear cos I quite like having a license and court appearances make me nervous, but I have had it at full noise in the first few gears and my bike hasn't exploded yet.

[slipperymongoose]

I love the noise at the high revs but the bike gets hesitant at 8k plus so ive given up revving it all the way out.

[crzydood17]

Are you sure about that? I'm under the impression that plain bearings are almost ubiquitous on modern multi-cylinder engines, and that roller bearings are generally only seen on smaller displacement engines, in more lightly loaded components (E.g. camshafts on dirt bikes.)

needle bearings are common on super high revving engines... F1 uses them... they hold up better to pressure since they can stay in constant contact with a surface and hold oil inside them...