TIMING

[rocketman]

Will too much slow you down? I installed a PVL flywheel which is 28 degree with the stock key , Later i put in a 4 degree key and it seemed to slow down, But I cant see 4 degree making that much difference.

Thanks

 

[flattop1]

But it did .

 

[MO Predator Racer]

Put it on a degree wheel. You would be surprised how inaccurate the flywheel timing and timing keys are. I had a billet flywheel fully lapped with stock key with 32 degree advance in it and it was sitting at I want to say 35 with the degree wheel. You may very well be in the high 30s without knowing it which is when you lose power and have poor performance.

 

[rocketman]

Thanks Flattop

 

[flattop1]

If the key is in backwards it retards timing .
The advanced timing also starts the fire earlier which means the piston is farther down the cylinder . Compression stroke .
in turn the flame front is providing resistance that the engine has to overcome before it can provide power for the power stroke .
without a corresponding increase in rpm advanced timing may not improve power .

 

[rocketman]

If I was to check with a degree wheel, where is the magnet in relation to the coil when it fires,?

Thanks

 

[flattop1]

https://4cycle.com/karting/threads/engine-timing.124184/