Timing keys

[Ducati]

Im new to the entire mini bike engine mods and was wondering how to do the timing in my 6.5 clone, and the use of timing keys. What exactly are they? what are the benefits of the 4* offset and 8*. what do the degrees mean? thanks

 

[mmisterbungl]

Kill timing keys. Just, kill them...burn them to the ground.
They advance when your engine sparks/combusts.
Do some research on how to NOT use them and save yourself a headache

 

[chrisbski1968]

Timing

It advances the timing in the motor for a little better response & usable power. I use the 4 degree timing key in my motors, with good luck so far. I did use an 8 degree once and it sheared clean after hitting the end of my driveway.. Can't say I endorse them and can't really say I hate them either. :shrug:

 

[mmisterbungl]

look up how to use valve grinding compound to lap the flywheel to the crank and you'll never need a key again.:thumbsup:
that is, if you are advancing the timing.

 

[ryan at raceseng]

yeah timing keys shear all the time, if you want to be absolutely certain that your timing is set exactly where you want it than lapping the flywheel and setting your timing with a degree wheel or using one of our billet flywheels with the adjustable timing bracket/kit is gonna be the way to go.

 

[olajoe808]

Im new to the entire mini bike engine mods and was wondering how to do the timing in my 6.5 clone, and the use of timing keys. What exactly are they? what are the benefits of the 4* offset and 8*. what do the degrees mean? thanks

The degrees are just that. Like on a compass for example. As the motor spins up you end up losing some timing. Advancing the timing helps to keep the motor running in the sweet spot. IMO timing keys are the best way to go. Cheap, easy to set and forget, and it doesn't have to be set to a pin point degree. And If for some reason it doesn't run as good as you want it to, just swap in one with more or less built into it. You'll notice that the timing key can cause problems breaking off and jamming up the flywheel hub. IMO, preparation can resolve that.