Daddyoo
CB750 Member
Greetings! New to the sport with purchase of a 1977 CB750F. I purchased bike that had been sitting in sun and rain for 2 years. With new battery, new plugs and fresh tank of gas bike started with little effort. Would not run idling and died out randomly at 4K RPM when trying to warm up ( no choke, choke cable was removed to accommodate 4 individual air filters). If I sprayed Starting fluid over the air filters it started right up but ran sporadic with sometimes slight pinging engine noise. With not a great deal of time. I removed the carburetors from bike. Open just one of the float bowls and looked LIKE NEW inside with no varnish residue or debris. I blew out and just the sprayed carb cleaner in just the one carb. Reassembled with pretty much same result. Supposedly bike ran perfect till the day this was left to rot in the sun and rain for 2 years.
I have a good deal working experience with old car and boat engines and pretty much fixing anything automotive. But, bikes seem to be bit more temperamental... So my question is: Where do I start? Before spending monies and effort in rebuilding the carbs. Is there anything I should check off list first be sure it is the carbs like timing, points cleaning or all the above. I was hopping to get this thing running initially to blow out any cobwebs since it was just sitting. Hate to tear anything apart if I do not need to...
Lastly, If anyone has any recommendations of best place to purchase break calipers, lines, rotors and general CB750 parts. Seems like there are allot of Web choices just wanted some advice where can get the best parts for best price. Also, since these carbs have been torn apart by hackers before... I might want to get them gone through the first time by a pro service to know they are right. Any recommendations for a good Web based carb repair shop?
Thanks for your help and patience in advance.
I have a good deal working experience with old car and boat engines and pretty much fixing anything automotive. But, bikes seem to be bit more temperamental... So my question is: Where do I start? Before spending monies and effort in rebuilding the carbs. Is there anything I should check off list first be sure it is the carbs like timing, points cleaning or all the above. I was hopping to get this thing running initially to blow out any cobwebs since it was just sitting. Hate to tear anything apart if I do not need to...
Lastly, If anyone has any recommendations of best place to purchase break calipers, lines, rotors and general CB750 parts. Seems like there are allot of Web choices just wanted some advice where can get the best parts for best price. Also, since these carbs have been torn apart by hackers before... I might want to get them gone through the first time by a pro service to know they are right. Any recommendations for a good Web based carb repair shop?
Thanks for your help and patience in advance.