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Author Topic: First bike ! 76 cb550  (Read 21790 times)

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Offline hereforever23

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Re: First bike ! 76 cb550
« Reply #50 on: June 27, 2013, 08:46:06 PM »
Did you check to make sure fuel is reaching the carbs?
Getting spark?
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #51 on: June 27, 2013, 08:53:45 PM »
Honestly I'm a total newb and troubleshooting this bike is completely foreign still. Picking up bits n pieces from all the guys here but feel like its gonna be an arduous process
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Offline Duanob

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Re: First bike ! 76 cb550
« Reply #52 on: June 28, 2013, 08:13:00 AM »
Um did you try the reserve?

Pull the fuel lines from the petcock and turn the tap on to see if you're getting fuel out of the tank. careful of the splash.
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"Just because you flush a boatload of money down the toilet, doesn't make the toilet worth more",  My Stepfather the Unknown Poet

1974 CB360T
1976 CB550K2 Resurrected
1976 CB550F2 Barn Find
1979 CX500 VG "HONDA-GUZZI"
2007 Moto Guzzi Breva 750ie
2015 BMW F700GS
Another 1976 CB550K Cafe?

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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #53 on: June 28, 2013, 08:20:42 AM »
I didn't pull the lines but it had been running on the regular tank for the last 50 miles fine and there was plenty in the tank. Thanks tho! Just gotta get my bud over here and get the 3k mi maintenance going and I'm sure well find some surprises...
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #54 on: June 28, 2013, 07:52:44 PM »
Had myself a Xmas morning type of day. Came home from work and my new bud from the forum had sent me my stock seat and bars and was sittin on my porch. Got the seat on and dayum what a difference from the king/queen seat. Bars to be done soon. Million thanks to CapeCafe!
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #55 on: June 28, 2013, 08:04:05 PM »
Pic
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Offline SUELZER

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Re: First bike ! 76 cb550
« Reply #56 on: June 29, 2013, 09:30:03 AM »
cant seem to get your images to open  :(
anyone else having problems?
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1976 Honda 550F
1993 Ducati 900ss
1979 Honda 750F

Offline Tews19

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Re: First bike ! 76 cb550
« Reply #57 on: June 29, 2013, 11:52:42 AM »
Pics don't work
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #58 on: June 29, 2013, 12:28:08 PM »
Yea idk. Tried 2
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #59 on: June 29, 2013, 12:30:08 PM »
Again
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #60 on: June 29, 2013, 04:23:40 PM »
Last try lol
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Offline Tews19

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Re: First bike ! 76 cb550
« Reply #61 on: June 29, 2013, 04:26:22 PM »
Nope
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #62 on: June 29, 2013, 04:33:27 PM »
ok really last try from pc, nothing yall haven't seen before lol
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Offline Tews19

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Re: First bike ! 76 cb550
« Reply #63 on: June 29, 2013, 04:36:18 PM »
Big difference! You going with stock bars? You will have to trim the electrical if you go back to stock
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #64 on: June 29, 2013, 04:36:48 PM »
finally! btw tews , im a huge fan of "drive" too... best soundtrack ever - nightcall total earworm repeat repeat song...
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #65 on: June 29, 2013, 04:39:32 PM »
yes I have the stock bars and that wil be a project in next week or so. having carbs cleaned Monday (yay!) and then on  holiday w my daughter til sunday. so probably next week...
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Offline CapeCafe

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Re: First bike ! 76 cb550
« Reply #66 on: July 01, 2013, 05:07:34 AM »
Hey CB - the seat looks great on your bike.  If you need to trim back your control lines (throttle Push/Pull and Clutch) checkhttp://www.motionpro.com/ for the stock cables.  They are fairly inexpensive and in my experience they make quality cables.  The custom set I ordered were spot on to the specs I provided them. You'll be able to simply pic from their stock catalog. There is a SOHC member http://slingshot-cycles.com/ that makes stock and custom brake lines as well.  His stock lines are a great value.  I bought a custom braided set with a new master, again, for what I thought was a great value.   BTW, I'll send you a pic of the bike I pulled the seat and bars from...It was the exact same year and color as yours.  Nice job!
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1976 CB550 K
2003 Kawasaki ZX12r
1995 Ducati 916 SPS
1995 Ducati 900 SS/SP
2000 Ducati 900i.e.

Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #67 on: July 01, 2013, 05:13:15 AM »
CapeCafe ,
Thanks for the tips! Il def check it out. Getting carbs cleaned today so looking forward to getting it back to see how much better it runs after getting 10 yrs of gunk out of it. And yes , thanks to you , it looks so much better w your seat on it! What a difference!
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #68 on: July 02, 2013, 08:34:16 AM »
Got carbs cleaned yesterday, the # 2 and #4 jets were nearly completely clogged. and now trying to set idle correctly since I had cranked it up a bit to keep it from stalling before but despite lowering it to factory setting if between 1.5 and 2 turns out from all the way set in it starts up and races to 3k rpm then if turn the choke off it won't idle and stalls. Any ideas ?
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Offline Bankerdanny

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Re: First bike ! 76 cb550
« Reply #69 on: July 02, 2013, 12:40:15 PM »
The '76 carbs don't have a fast idle cam like the 77-78 carbs do. Turning on the choke richens the mixture to help you start it, but doesn't move the slides and so shouldn't have an impact on the idle speed. With these carbs at full choke you should need to use the throttle a bit to maintain a slightly elevated idle speed until the bike warms up enought to open the choke and allow the regular idle circuit to do it's thing.

If the idle speed screw is set to hold the slide up to far then it brings other parts of the fuel system into play (like the needle and main jet) too soon. If you are getting 3,000 RPMs with the choke closed then that screw likely needs adjusting.

Start the bike with the choke and then back out the idle speed screw until the idle speed is down to an acceptable level. If it will idle, ride the bike until you can open the choke fully. You will likely need to adjust the idle speed again to reduce it further to the correct hot speed (between 900-1,100 RPMs).
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"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #70 on: July 02, 2013, 02:38:51 PM »
Thanks BD!
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #71 on: July 05, 2013, 07:51:06 PM »
So after getting the idle back to close to normal and not stalling , turned the choke off and took it for a short ride around the neighborhood after it warmed up and it rode great. Took it out again later that day and it was a mess. Throttle response all over the place. Stalled couple times and rough starting it back up. Got it home and its pissing gas out of the carb overflows. Wtf! Any ideas? Thanks all...
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Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #72 on: July 07, 2013, 05:30:14 PM »
Today. Started rt up. Reset idle screw and it seemed fine. After 5 minute warmup closed the choke and no difference in idle. Took it for 15 min ride and was responsive and no stalling at stops. Idk. This bikes a mystery inside a puzzle inside an enigma.  No gas pissing from carb overflows and idled fine after got it home. Minus the tapping sounds (any ideas there?) it was great. Hope you all had a great Fourth of July weekend.

Retrimmed nos seat trim. Chrome strip was crusty and flaking so I cut it off and painted it black. Looks clean. Happy days.
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Offline K3Owner

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Re: First bike ! 76 cb550
« Reply #73 on: July 07, 2013, 06:19:18 PM »
Back in my bike newbie days, it was a ratty Kawi KZ650. The carbs would overflow whenever they pleased and I didn't have cash for replacing the needles and seats. A good whack with a screwdriver butt stopped it. Did you check and clean the needles and seats? It requires carb removal - again. Not unusual. Bring a blunt tool in the meantime. Congrats on the bike!!!
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1978 CB550K4 - yeah, I'm not a K3 Owner - my bad

Offline Cbpunk

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Re: First bike ! 76 cb550
« Reply #74 on: July 07, 2013, 06:59:52 PM »
Thanks! Despite the annoyances and endless questions and helplessness this whole bike thing has been really fun. Loving riding it and getting more familiar with it. And this forum has been fantastic. Wealth of knowledge filled w great people. Cheers!
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