Experimenting with KA100 Ignition Timing

2 Stroke Kart Engine Forums
1

Has anyone here tinkered with KA100 ignition timing themselves and willing to share their findings?

Legal range is .080 to .106

Understanding the rule set for these things I feel like I have the knowledge and tools to take a stock one and optimize it pretty close to what the rule set dictates but would love if someone would share their experience with the timing as I don’t have a dyno and it’s extremely difficult to adjust at the track (seat side of the engine) to do apples to apples comparisons.

Thinking I’m going to purchase a box stock one and tinker myself while getting seat time to get used to the engine combo and then pay for a proper blueprint when either 1) I feel like I’m really lacking motor to others or 2) it’s time to do a top end anyhow.

Thanks,

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2

You could cut a large hole in the seat for access to the stator. If you have a rib protector it’s unlikely to cause a comfort problem. Or you could have a plate of some sort that easy to remove.

Some will remark about seat stiffness being changed but for the purposes of testing like this, it’s not a major concern IMO