1978 cb550k cafed !!! ON THE ROAD !!! done for now...
- Thread starter sabres7th
- Start date
bikeboy
Over 1,000 Posts
Re: 1978 cb550k rebuild
sorry I didn't chime in earlier, and you may have already addressed this, but watching that video, it sounds as if not all cylinders are firing? I revs erratically? Did all the pipes get hot?
Anyway. look forward to seeing this come together. You've picked a great bike to work on.
ian
sorry I didn't chime in earlier, and you may have already addressed this, but watching that video, it sounds as if not all cylinders are firing? I revs erratically? Did all the pipes get hot?
Anyway. look forward to seeing this come together. You've picked a great bike to work on.
ian
Re: 1978 cb550k rebuild
yeah the carbs are in bad shape but can be fixed and the timing is likely off. who ever had the bike did not care enough to learn how to fix it.also the carbs are out of sync and a fuel line that transfers gas from one carb to another is toast.
yeah the carbs are in bad shape but can be fixed and the timing is likely off. who ever had the bike did not care enough to learn how to fix it.also the carbs are out of sync and a fuel line that transfers gas from one carb to another is toast.
Re: 1978 cb550k rebuild
ok well did a couple weld jobs and about the 3rd time i came up with something good ill put pics of the final configuration later here is some of the process of getting to where i am at now. the rest of the build is on hold till i get a new smaller battery to fit under the seat. does anyone know of a small battery that will still let me use the electric start?thanks guys.
ok well did a couple weld jobs and about the 3rd time i came up with something good ill put pics of the final configuration later here is some of the process of getting to where i am at now. the rest of the build is on hold till i get a new smaller battery to fit under the seat. does anyone know of a small battery that will still let me use the electric start?thanks guys.
boingk
Standard gearhead.
Re: 1978 cb550k rebuild
Lookin' good there sabre. Now, the battery issue - you know what its running stock? Many older bikes can get away with smaller batteries than they came with, its just a matter of understanding that they'll need to be kept in good condition and may not be the happiest if you don't ride for a few weeks. All that amounts to is keeping the terminals clean, the fluid level topped up, and riding frequently. Easy!
At the moment I'm running my GS850 (stock 14Ah) on a 9Ah and it seems to have no troubles. I'd say I may get away with a 6Ah but that'd probably be pushing the limits. You'll probably be fine with a 6Ah battery at a guess, although it'd help to knnow what the bike ran stock.
Cheers - boingk
Lookin' good there sabre. Now, the battery issue - you know what its running stock? Many older bikes can get away with smaller batteries than they came with, its just a matter of understanding that they'll need to be kept in good condition and may not be the happiest if you don't ride for a few weeks. All that amounts to is keeping the terminals clean, the fluid level topped up, and riding frequently. Easy!
At the moment I'm running my GS850 (stock 14Ah) on a 9Ah and it seems to have no troubles. I'd say I may get away with a 6Ah but that'd probably be pushing the limits. You'll probably be fine with a 6Ah battery at a guess, although it'd help to knnow what the bike ran stock.
Cheers - boingk
Re: 1978 cb550k rebuild
12v12ah stock thinking about running 12v6ah but not sure if that will let me run the electric start. i would be nice to find a small 12v12ah battery that would free up more space under the seat for the electronics. i guess i could go with out the electric start. just looking for ideas here so i can continue with the mock up/build. and a newbie question it seems like the amp hour is equal to the capacity of storage of power. is this so? could i use a small 12v9ah or 8ah or 7ah and so on? for anyone else here what did you guys cram under the seat lol? until then ill be looking through the forums i guess. i plan on doing some long distance trips and city driving too anyways...thanks boingk.
12v12ah stock thinking about running 12v6ah but not sure if that will let me run the electric start. i would be nice to find a small 12v12ah battery that would free up more space under the seat for the electronics. i guess i could go with out the electric start. just looking for ideas here so i can continue with the mock up/build. and a newbie question it seems like the amp hour is equal to the capacity of storage of power. is this so? could i use a small 12v9ah or 8ah or 7ah and so on? for anyone else here what did you guys cram under the seat lol? until then ill be looking through the forums i guess. i plan on doing some long distance trips and city driving too anyways...thanks boingk.
dead bound
5'6" piece of twisted steel and sex appeal
Re: 1978 cb550k rebuild
This guy has PD46c carbs and details the whole setup. EDBIKERii http://forums.sohc4.net/index.php?topic=20869.msg258435#msg258435
I have PD46A on a 78 so I am going with the same setup and I will be running velocity stacks with 4-2 drag pipes. I am still waiting on the push-in jets and a Morgan Carbtune to come in the mail.
sabres7th said:
This guy has PD46c carbs and details the whole setup. EDBIKERii http://forums.sohc4.net/index.php?topic=20869.msg258435#msg258435
I have PD46A on a 78 so I am going with the same setup and I will be running velocity stacks with 4-2 drag pipes. I am still waiting on the push-in jets and a Morgan Carbtune to come in the mail.
Re: 1978 cb550k rebuild
thanks man i am still learning here. first bike build and that is good info for anyone building a 77,78 cb550 in the future. anyway batt came in today so i should be getting somewhere tomorrow and finishing up the fab. and getting to everything else.
thanks man i am still learning here. first bike build and that is good info for anyone building a 77,78 cb550 in the future. anyway batt came in today so i should be getting somewhere tomorrow and finishing up the fab. and getting to everything else.
