Topic: Another project-1976 Honda CB550K

[denward17]

Hey guys, quick question...The headlight on my '77 cb550k isnt working. Im reading only 6volts at the bullet connectors terminating at the headlight. Any ideas why I am not getting 12?
Thanks in advance!

Probably best to ask your question here:  http://forums.sohc4.net/index.php/board,2.0.html

Welcome to the forum!

[denward17]

Little more progress made.....hopefully will get battery in the mail within the next couple of days.

Delkevic installed, those springs are a pass in the a$$.

I ended up stretching them some before install, that helped a lot.  I struggled with them for about 15-20 mins before realizing I didn't have enough strength to put them on as they were.

[BenelliSEI]

Dennis….. looking great. If you’re missing a wrench, it’s in there behind the brake pedal switch!

[denward17]

Dennis….. looking great. If you’re missing a wrench, it’s in there behind the brake pedal switch!

Lol, there as a reminder to tighten the bolt after installing battery box.

[BenelliSEI]

Dennis….. looking great. If you’re missing a wrench, it’s in there behind the brake pedal switch!

Lol, there as a reminder to tighten the bolt after installing battery box.

Brilliant. I have a small bag of yellow zip ties I use for just that. If something isn’t completely done at the end of the day, it always gets a zip tie.

[newday777]

Dennis….. looking great. If you’re missing a wrench, it’s in there behind the brake pedal switch!

Lol, there as a reminder to tighten the bolt after installing battery box.

Brilliant. I have a small bag of yellow zip ties I use for just that. If something isn’t completely done at the end of the day, it always gets a zip tie.

I use blue painter's tape as a flag. And you can write a note on it.

[denward17]

Nothing really to report.

I've been troubleshooting some electrical issues (left front turn signal), but got it fixed this morning.

Received a new battery (Scorpion) and it lasted about 30 secs in short bursts; with plugs out (trying to get oil pressure before start).

So now going through testing process of battery to see if I need a replacement, will be charging most of the day going through Batterystuff's testing procedure.

May try to add gas tomorrow and see if I can at least kickstart.

[Mark1976]

  It'll run like a Japanese watch!!!!!

[BenelliSEI]

Sounds like a bad battery. How annoying!

[denward17]

After performing the vendor's test, and reporting the values, they are sending me a new battery.

Some results of testing:

1st starting voltage: 12.4v on bench
2nd voltage reading: 12.74v after 8 hour charge and resting for 30 minutes on bench
3rd voltage reading:12.64v after sitting overnight ~ approximately 14 hours after charge, on bench
4th voltage reading: installed battery in bike, 11.7v just turning key on, with headlight on and 2 running lights on; 6.5v when I hit the starter button.

Think it will kickstart like this?

[willbird]

After performing the vendor's test, and reporting the values, they are sending me a new battery.

Some results of testing:

1st starting voltage: 12.4v on bench
2nd voltage reading: 12.74v after 8 hour charge and resting for 30 minutes on bench
3rd voltage reading:12.64v after sitting overnight ~ approximately 14 hours after charge, on bench
4th voltage reading: installed battery in bike, 11.7v just turning key on, with headlight on and 2 running lights on; 6.5v when I hit the starter button.

Think it will kickstart like this?

Back in the day when our bikes sat outside all winter we got 2 years tops out of a battery. The final portion of the second year often we had to kick start. At the very end sitting idling with headlight on the bike would quit if you put on the brakes and made the brake light come on. So IMHO if you unplug the headlight I bet it will kick start.

[BenelliSEI]

After performing the vendor's test, and reporting the values, they are sending me a new battery.

Some results of testing:

1st starting voltage: 12.4v on bench
2nd voltage reading: 12.74v after 8 hour charge and resting for 30 minutes on bench
3rd voltage reading:12.64v after sitting overnight ~ approximately 14 hours after charge, on bench
4th voltage reading: installed battery in bike, 11.7v just turning key on, with headlight on and 2 running lights on; 6.5v when I hit the starter button.

Think it will kickstart like this?

Den….…. With that rapid a voltage drop, it won’t start. If you need to try today, attach your lawn tractor or car with a set of booster cables to that battery…..

[calj737]

And remove the fuse for the headlamp. Eliminate all auxiliary voltage draws while troubleshooting.

[denward17]

And remove the fuse for the headlamp. Eliminate all auxiliary voltage draws while troubleshooting.

Good point, will remove headlamp/tail lamp fuses with the new battery.

[Stev-o]

After performing the vendor's test, and reporting the values, they are sending me a new battery.

Some results of testing:

1st starting voltage: 12.4v on bench
2nd voltage reading: 12.74v after 8 hour charge and resting for 30 minutes on bench
3rd voltage reading:12.64v after sitting overnight ~ approximately 14 hours after charge, on bench
4th voltage reading: installed battery in bike, 11.7v just turning key on, with headlight on and 2 running lights on; 6.5v when I hit the starter button.

Think it will kickstart like this?

 ...attach your lawn tractor or car with a set of booster cables to that battery…..

Important to say do not have the car running when you jump it.

[denward17]

I'm going to wait on the new battery....need to start cleaning the gas tank next.

[calj737]

Important to say do not have the car running when you jump it.

Completely irrelevant. The battery of the car will only discharge what is drawn from it. And the car battery is only storing 14.4v while being charged. That will not hurt the motorcycle battery as the current draw is still far less than what is available at the battery.

[newday777]

Important to say do not have the car running when you jump it.

Completely irrelevant. The battery of the car will only discharge what is drawn from it. And the car battery is only storing 14.4v while being charged. That will not hurt the motorcycle battery as the current draw is still far less than what is available at the battery.

So you are stating that the alternator amperage output of the running car won't damage the bike electronics?

[calj737]

Important to say do not have the car running when you jump it.

Completely irrelevant. The battery of the car will only discharge what is drawn from it. And the car battery is only storing 14.4v while being charged. That will not hurt the motorcycle battery as the current draw is still far less than what is available at the battery.

So you are stating that the alternator amperage output of the running car won't damage the bike electronics?

Yup. The output is what’s “available”. The consumption of the bike creates the “draw”. When your bike is running, it doesn’t draw more than the alternator can produce does it? And the Regulator toggles the output to the battery when there’s a deficiency, and shuts it down when there’s no need.

Just like your home. You’ve likely got 200amp panel, but about 600+ at the nearest transformer serving your home. By the referenced logic, that 600+ would flood the home and fry the electrical appliances and devices. But your home doesn’t draw that amount so the balance sits waiting.

Simple.

[grcamna2]

Important to say do not have the car running when you jump it.

Completely irrelevant. The battery of the car will only discharge what is drawn from it. And the car battery is only storing 14.4v while being charged. That will not hurt the motorcycle battery as the current draw is still far less than what is available at the battery.

So you are stating that the alternator amperage output of the running car won't damage the bike electronics?

Yup. The output is what’s “available”. The consumption of the bike creates the “draw”. When your bike is running, it doesn’t draw more than the alternator can produce does it? And the Regulator toggles the output to the battery when there’s a deficiency, and shuts it down when there’s no need.

Just like your home. You’ve likely got 200amp panel, but about 600+ at the nearest transformer serving your home. By the referenced logic, that 600+ would flood the home and fry the electrical appliances and devices. But your home doesn’t draw that amount so the balance sits waiting.

Simple.

Thanks.

[denward17]

2nd new battery scheduled to be delivered mid week, so I started sanding the new side covers from Frankenstuff; drilled holes for badge placement.

Poured about 3.5 gallons of white vinegar into tank and let soak for about 3 days, emptied into a 5 gallon bucket to see what came out, pic below.

I then rinsed with a baking soda water mix, rinsed it out good, then used air hose to dry it out inside.  I am now soaking some Evaporust in the tank, only had about 2.5 quarts.  Will swish around and prop tank at different angles over the next few days.

I thought the tank looked good before I started, but did get some gunk out.

[grcamna2]

Den,that rust may have been on the underside-Top of the tank.

[newday777]

Den,that rust may have been on the underside-Top of the tank.

Exactly why you need to full the tank full. This picture is with a bore scope.

This is the top of the last tank I cleaned, electrolysis, followed up with Evaporust. Apparently I hadn't burped the tank when I filled it. I buy a 5 gallon bucket of Evaporust.

[denward17]

Newday, I have ordered some more Evaporust....do you rinse with anything afterwards, or just leave the Evaporust film in there before putting in gas?


I plan to paint the tank after cleaning the inside.

[BenelliSEI]

I usually splash a 50/50 mix of two stroke oil and gas around and drain. 1 pint is lots if you give it a good shake.