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Roadworthy today
Got the tags and insurance today. Antique tags, never need renewal, no taxes, insurance is $79 a year. I rode it 26 miles today, had it up to 65 MPH and everything seems to be fine.
5K RPM at 55 MPH is about 10 % lower than my 2011 CBR 250 R was. The single cylinder twin cam 4 valve motor was also used in ATVs so it has plenty of cooling fins that are normally on ATVs. Seems to run very cool compared to other air cooled bikes I have owned. Even the exhaust pipe doesn't get as hot as most of my previous air cooled bikes, even coming off a 55 MPH highway.
The carburetor is a two stage, with the normal SU type feeding the left intake valve, and a staged secondary carb that is totally mechanical depending on throttle position. This is similar to the Honda Civic VX in that only the left intake valve recieves any air-fuel mix at lower engine speeds. This would provide a great swirl to the intake charge at lower RPM, while still being capable of decent power at high RPM when the secondary is opened.
This bike is very narrow, with minimal frontal area and a decent front fairing from the factory. I will wring it out this weekend and get some mileage figures. Even has a gas gauge.
regards
Mech
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