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your sumotrack may be the best of both worlds :)

My key learnings from the project: don’t suffocate a modified motor: open up the intakes and the exhaust; go with 1.5” headers and open core mufflers( not 1.75” headers); set up an Air/fuel mix monitor to guide the tuning. If you are interested, the build to follow is the "sumotrack" by...

It is 9.5:1, details here https://www.xs650.com/threads/700cc-kit-with-a-shell-1-cam-in-a-78xs650e.65405/

here you go. I pulled the dyno of 2016 FZ-07 from the Cycle World website. the 700cc kit i put in the bike keeps up pretty well with the FZ until 6K rpm

And all the electronic management systems: traction, braking, etc

also, MT-07, FZ-07 are ~ 68hp at the rear wheel. this is in reach for XS with a 750kit. of course it is all the other stuff (except the looks) that make the MT a much better motorcycle.

Here is how you fix it https://www.americanflattrack.com/news/view/aft-development-series-part-i-yamaha-mt-07-dt

looking forward to the updates.

do you think it is the guage or the sensor?

It is almost like we should have a racing section. To cover all sorts of racing. But let’s start with the thread you suggest

i see you have open core. that configuration will flow much better. one thing. you seem to have different types of UNI pods on your carburetors. the one with the end cap flows much less. I would keep the type as the one on the left carb and then see. you are probably running too rich on the...

are the cone engineering mufflers open core or "the quiter core"? A trip to a dyno with a "sniffer" would dive you lots of info. In my experience, only hooking up an AFR sensor was I able to dial in the jetting. Should have done that from the get go.

Just noticed the serrated aerodynamic shapes on the KTM GP bikes. Very neat. Is there a motoGP following on this site?

Buy a range of jets. Two sizes up and down from stock

Order these from niche cycles

Right. I have seen claims that HD was first to use them on motorcycles.

Well, I found this husqvarna interesting as it precedes the introduction of ohv motors by Harley. I have seen claims before that HD knucklehead was revolutionary and a ‘first’.

https://cybermotorcycle.com/marques/husqvarna/husqvarna-500gp.htm

The other thing is synchronization. Without the barbs is hard to do. You may need to add barbs to carburetors

https://www.moto-collection.org/blog/motobecane-350-v4c-1947-lespoir-decu/