1969 Honda CB in Osseo, MN

Bought it a few years ago from original owner untouched and since it had good patina I started working on it little by little, changed oil and cleaned carburetors, paint it by professional painter to candy ruby red, put 4 NOS HM300 exhaust pipes on it and started. Run it for just for a few minutes and again turned it off since I did not want to change the exhaust necks shade and keep it nice like new pipes on it, dried gas tank and parked it in my basement till now