Can battery affect engine performance

[disenfranchised]

It's also possible that the shop did the famous "... brown wire mod ..."

There's a thread somewhere here with "Hyosung flat spot" in it. Do a search because there you will find all about how unclipping the {brown?} wire from the CDI livens the bikes up something wonderful. Wannabiker has done it ... it works. Your shop may have done it for you too.

Of course it may be just the battery as everyone else is saying ...

Nah...been there and done that already..ages ago

BTW...why is it called a stator in a bike, and an alternetor in a car?

[YellowDog]

Looks like you now have a 'Hybrid' Petrol/Battery powered bike!

It probably just seems faster after struggling with no battery power tp support the electrics.

May be worth checking the alternator function is working at the right rate before your wiring gets fried. If the headlamp dims when you switch off, this is a sign of disparity.

Good luck.

[T.W.R]

Err, you can't really use "BSA Bantam" and "race engine" in the same sentence.

Errr? yes you can

http://www.kiwibiker.co.nz/forums/at...7&d=1152324551

that bike in the picture would run close to 100mph

Could supply three A4 pages of material from the BSA factory on specifics on how to hotrod the engines for racing .

With Batteries, even using the wrong battery other than that specified for the bike will affect performance

[davereid]

BTW...why is it called a stator in a bike, and an alternetor in a car?

Not a lot of difference.

Both your bike and your car using a spinning magnetic field to create the juice.

The magnets are arranged so that as they spin, the magnetic field "cuts" the wires of the stator, producing electricity.

The real difference is on most bikes, they use "real" magnets. In a car alternator, they use electromagnets.

So on your bike, as you go faster, you create more electricity - even if you don't need it. Generally on your bike, a "shunt regulator" is used to stop things going way overvoltage. All it does is burn up a bit of the juice, turning it to heat to keep voltage down.

Simple circuit, and cheap. OK for bikes as they don't need much juice.

In a car, they turn the alternators electromagnets off, so the alternator produces only the required amount of juice. No excess heat, easy control etc.

[Ixion]

Nah...been there and done that already..ages ago

BTW...why is it called a stator in a bike, and an alternetor in a car?

Strictly, an alternator consists of a staor (non rotating bit) and a rotor (rotating bit - duh).

In a car the stator and rotor are assembled into a case , and the whole thing is removeable as a unit - called an alternator

On a bike the stator is usually bolted to the engine casings, and the rotor keyed to the end of the crankshaft - or as a flywheel (usually , lots of exceptions). So more common to refer to them separately.