This year I’ve gone from racing Rok GP to racing LO206 and am working out how to tune for it. It’s a big change as I’ve also switched karts. The principles are different and the engine is much more sensitive to chassis tuning. So here’s what I was using last year:
2006 CRG Road Rebel 32mm
Vortex ROK GP
2013 Formula K FK01 30mm
50mm rear axle
54″ rear track
One and a half spacers front track
Outermost ackerman hole
Camber/caster adjusting with tire wear
I’ve caught on that chain tension management is huge. Wasting as little engine power on loose chain and gummed up bearings as possible is vital. Where I’m running in to trouble is finding the sweet spot between bind and grip. Obvious: Too tight, bind, slow. Too free, slide, scrub. Is the trick really to just learn to drive a very free chassis?
Also the chain: It stretches and needs to be checked and tensioned, yes. Is there anything at all I can do about the tight spots like change sections of the chain? Assuming I can even find them?
Tight spots in chain may be related to the split sprockets. Try to get the “splits” even at both cuts. Some can be a bugger. Once you get used to working with split sprockets it’s not too bad. Chassis wise you want free but not loose. That inside rear must give up traction. As David said, SMOOTH !!!
Ya I’m getting to smooth. Gentle hands, lock in the turn, no twitching. I’m using #35 chain bought from one of our local dealers (whom I trust) and it’s racing chain. My father-in-law knows where I can get some really quality chain though so I may get that in bulk and change it frequently.
Bernie you’re so right about the split sprocket, what a little bugger that thing is. Loose but not free. I’ll start with where I’m binding and slowly loosen it off. Thanks guys!
Evan, check out my comments in the tech forum on 35 sprockets… point #2 is pretty important to align the sprocket halves and get the bind out of the chain… a lesson I was taught by a Western Canadian Briggs champ.
As Gary said, the 35 chain can be run pretty much all year, with simply lubing it before every session – if things are properly aligned.
Are you guys running at max 55″ in BC, as opposed to the ASN Canada 50″ max? What size rear tires do you run there?