Quote:
Originally Posted by SS109
How is it compared to the S3 head?
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Someone else will have to reply to that, as I've never tried the S3.
I will add that the machine work is amazing, a ribbed design that appears to be unique. It's interesting that RK didn't need any squish measurements, and has a product that works regardless of current chamber volume.
On "transfer sections" between trails I can hold the throttle steady and not get the surging that usually happens on a 2-stroke. Very little "pop" on deceleration also - just a smooth running engine. Some might say I'm a little lean - and it could be true - but the power is there, the plug looks good, and the strong low/mid pull is enhanced.
There are some pictures and more discussion in the "TSP head mod" thread in this section of the Forum.