Author Topic: The rebirth of Lazarus  (Read 24825 times)

Offline mickwinf

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Re: The rebirth of Lazarus
« Reply #345 on: March 02, 2024, 11:08:27 AM »
So Lazarus has had his first outing for 30 years and threw in a couple of snags to sort out. He cut out a couple of times at traffic lights with what felt like fuel starvation and isn't charging either. All gears engage ok and clutch works but speedo not working at all.
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: The rebirth of Lazarus
« Reply #346 on: March 02, 2024, 11:23:54 AM »
So Lazarus has had his first outing for 30 years and threw in a couple of snags to sort out. He cut out a couple of times at traffic lights with what felt like fuel starvation and isn't charging either. All gears engage ok and clutch works but speedo not working at all.
Well done Mick, that's not a bad snagging list really, considering you have resurrected Lazarus.
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Online davidcumbria

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Re: The rebirth of Lazarus
« Reply #347 on: March 02, 2024, 12:15:47 PM »
Considering all the work you did on the gearbox it must be pleasing to have it working well. Doesn’t sound like much serious to sort either👍

 apart from the occasional stall did the engine run as you’d eexpect ?
500/4 in 79. No bikes for 30 years. 750/4 in 2013, 550/4 in 2023. Also own  R1100GS, RD350LC YPVS , Triumph Street Triple, Yamaha XT250

Offline mickwinf

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Re: The rebirth of Lazarus
« Reply #348 on: March 02, 2024, 12:33:14 PM »
Hi Dave, engine seemed to run well except a slight hesitation, only went about 3 miles though due to the fuel issue. charging battery then will look into the issues and try again.
Love the 500 and 550 have a 500 called Lazarus under restoration

Online davidcumbria

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Re: The rebirth of Lazarus
« Reply #349 on: March 02, 2024, 02:37:10 PM »
This engine hesitation is a prevalent annd  elusive problem with some counterintuitive solutions. See my rebuild thread,   partially restored cb550 ,with some links and much more info on this. In particular though the problem looks like weak mixture unscrewing the mixture above 2 turns got  rid of my  hesitation, though I do have a delkevich 4 into 1 fitted.
« Last Edit: March 02, 2024, 02:38:53 PM by davidcumbria »
500/4 in 79. No bikes for 30 years. 750/4 in 2013, 550/4 in 2023. Also own  R1100GS, RD350LC YPVS , Triumph Street Triple, Yamaha XT250

Offline McCabe-Thiele (Ted)

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Re: The rebirth of Lazarus
« Reply #350 on: March 02, 2024, 04:31:41 PM »
I would not worry too much about a hesitation until I had a hundred miles under my belt. Then look at spark plugs colours etc etc.
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Offline Seabeowner

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Re: The rebirth of Lazarus
« Reply #351 on: March 02, 2024, 06:43:11 PM »
Well done Mick. I would get the charging fixed and then take it for a run on some quiet roads and avoiding traffic lights and see what develops.
Phil
1971  CB500K0  Candy Jade Green or Candy Gold
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange
1978  CB550K     Excel Black

Offline McCabe-Thiele (Ted)

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Re: The rebirth of Lazarus
« Reply #352 on: March 02, 2024, 07:27:08 PM »
Mick if you have a charging issue I think the weakest link is the connections out of the alternator itself, I've been lucky up to now I only had output voltage issues from my regulator.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline mickwinf

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Re: The rebirth of Lazarus
« Reply #353 on: March 02, 2024, 11:20:35 PM »
First thing I will check is the wiring Ted as I had to join some of the wires due to them being cut by the previous torturer of this poor bike.
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline Laverda Dave

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Re: The rebirth of Lazarus
« Reply #354 on: March 03, 2024, 10:31:21 AM »
That's a great result Mick. Well done for saving it from the skip and getting another sohc back on the road. Those niggles really are minor considering what you started with👍
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1978 Moto Morini 350 Sport
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Offline McCabe-Thiele (Ted)

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Re: The rebirth of Lazarus
« Reply #355 on: March 03, 2024, 11:40:53 AM »
I had to join some of the wires due to them being cut by the previous torturer of this poor bike.

Looking at your starting point on Page 1 Mick the term torturer seems mild - attempted murderer seems more fitting.

You have come a long way since November 2021 - it must be very rewarding to have ridden it at last.

Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline mickwinf

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Re: The rebirth of Lazarus
« Reply #356 on: March 03, 2024, 04:02:15 PM »
had to do some gardening today, yuk I hate it, so not much time in garage. had a quick look at the alternator wires and seem ok but will check further. I also have an issue with the petrol tap dripping when turned off. I know this can be due to the sealing washers on the screws so ordered the genuine honda ones at great cost. as i remember they were a thick fibre or plastic, but the ones supplied now are normal looking fibre ones like you can buy for pennies. still leaked so used 2 per screw, still leaks. The carbs must be good as no leaks from then when tank mounted so will try again. I also chipped the tank taking it off, dammit.
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline royhall

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Re: The rebirth of Lazarus
« Reply #357 on: March 03, 2024, 05:06:47 PM »
Like Ted said, I just had a look back to page 1 pictures. Sorry Mick but I'm going to have to get you certified under the Mental Health Act. Jeez that was rough with a capital R. Well done mate.
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Offline mickwinf

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Re: The rebirth of Lazarus
« Reply #358 on: March 04, 2024, 12:46:10 PM »
had a couple of hours on the charging issue, wires seem to be ok so tried to test using the info in the manual. Getting inconsistent results using multimeter, I am not confident with amps and ohms etc so may be user error. Tried to check the rectifier with same inconsistency, quite often the reading is zero or jumps around a lot. I have another alternator but wires are also cut, i tested that one and results are equal between yellow wires so might try using that one. I am testing the voltage at the battery when running and assume it should rise to 13/14 volts when revved? It does not go up at all, what should I do next?
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline taysidedragon

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Re: The rebirth of Lazarus
« Reply #359 on: March 04, 2024, 12:48:31 PM »
Check the rectifier/regulator.
Gareth

1977 CB400F
1965 T100SS

 

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