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Author Topic: Honda CX500 Turbo  (Read 3697 times)

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Offline Bikerboer1973

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Re: Honda CX500 Turbo
« Reply #40 on: April 24, 2019, 04:59:16 pm »
This is going to be a beaut when done!  :thumleft:
Tans.
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Offline Altie7deLaan

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Re: Honda CX500 Turbo
« Reply #41 on: April 24, 2019, 06:55:51 pm »
Lekker pappie.
Miskien as jy klaar is kan jy die bike uit verhuur aan franse besoekers vir Lesotho trips?  :patch:
xl185  cb750f  gsx600f  fz750  gsxr750  cbr600f2  cbr900rr cbr929rr  cbr954rr  vtr1000f  fzr1000exup  650dakkie gsxr1000k4  lc4 supermoto  bandit1200s   project fartblood (fireblade streetfighter)  f800gs


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Offline Lem

Re: Honda CX500 Turbo
« Reply #42 on: April 24, 2019, 07:05:06 pm »
ek is bly jyt die fiets gekoop...maar het jy dalk met die eienaar gesels oor of daai 1978 Isuzu C1900 te koop is?  :drif:
Faith is not knowing what the future holds, it's knowing who holds the future
 

Offline Bwana

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Re: Honda CX500 Turbo
« Reply #43 on: April 25, 2019, 10:05:19 am »
ek is bly jyt die fiets gekoop...maar het jy dalk met die eienaar gesels oor of daai 1978 Isuzu C1900 te koop is?  :drif:

I have his number if you want to contact him.
« Last Edit: April 25, 2019, 02:32:52 pm by Bwana »
 

Offline Bwana

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Re: Honda CX500 Turbo
« Reply #44 on: May 08, 2019, 11:56:57 am »
Bike cleaning up nicely. Parts needed are all on order. Fairing is actually Fibre glass and so is easy to repair unlike plastics.
 

Online 2StrokeDan

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Re: Honda CX500 Turbo
« Reply #45 on: May 08, 2019, 01:18:02 pm »
Quite a find, they sold very little, for various reasons.

They are definitely bound to become scarce collectables, for amongst other, the above reason.
 

Offline Bwana

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Re: Honda CX500 Turbo
« Reply #46 on: October 24, 2019, 11:12:58 am »
Well I have finally got the bike back body work finished and engine and all mechanical s finished just a few little things to do. Going to test ride today. I will post pics later. In the meantime I found this very interesting article and test when it was first launched if anyone is interested.

 http://www.yeoldecycleshoppe.com/roadtestlibrary/2017/2/16/1981-honda-cx500-turbo-road-test
 

Offline Black_Hawk

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Re: Honda CX500 Turbo
« Reply #47 on: October 24, 2019, 11:20:15 am »
This is good news, can't wait to hear your feedback of the test ride and to see the photo's  :thumleft:
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Offline BuRP

Re: Honda CX500 Turbo
« Reply #48 on: October 24, 2019, 11:21:59 am »
Got it.

Sorry, I find this tread only now - congrats!
Bwana, I hope you plugged the intake as well as exhaust during your towing?
I did the course for this bike and we were urged to plug these openings during towing, for reason that the turbo could spin up due to 'venting', and with the motor off hence no lubrication the turbo could wear out.

Will now page through the rest...
« Last Edit: October 24, 2019, 11:23:25 am by BuRP »
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Offline Beebop

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Re: Honda CX500 Turbo
« Reply #49 on: October 24, 2019, 11:34:24 am »
Thanks for that article, very good reading. I'm a big fan of bikes from the mid to late 70's.
 

Offline dirtyXT

Re: Honda CX500 Turbo
« Reply #50 on: October 24, 2019, 12:07:17 pm »
 :sip:
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Offline neil-ph

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Re: Honda CX500 Turbo
« Reply #51 on: October 24, 2019, 01:47:57 pm »
. He told me in 1982 you could bye a CBX1000 for R3300.00

That is exactly what I paid for mine in 1983, selling it for a handsome profit of R300.00 barely a year later. Look at the prices these command today !!
« Last Edit: October 24, 2019, 01:50:03 pm by neil-ph »
Never hesitate to take that ride. Ride safe, ride often and ride far. The soul demands it.

All men die, but not all men live......
 

Offline Bwana

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Re: Honda CX500 Turbo
« Reply #52 on: October 24, 2019, 03:32:05 pm »
Here are 2 quick pics before the bike gets striped down again. I am so disappointed bike went into limp mode mode as I started to open it up with the fuel injection warning light come on I have now with the help of the Local guy Peter up the road who owns Fearless Motorcycles we have managed to find a workshop manual and believe it or not it has an ECU under the seat with a self diagnostic box with a series of lights. So far I am way over budget and after stripping again I find lots of little things that are not right so we start again. Interesting comment from burp wish I knew that earlier as I towed it from potch to bloem without protection but according to Honda Bloem they tested the bike at Red Line 10000RPM which I do not believe.
« Last Edit: October 24, 2019, 04:01:08 pm by Bwana »
 

Offline Black_Hawk

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Re: Honda CX500 Turbo
« Reply #53 on: October 24, 2019, 03:36:45 pm »
I'm sorry to hear about the mechanical issue and I hope that you can sort it out  :-\

But, I must say the bike looks very good  :thumleft:

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Offline Beebop

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Re: Honda CX500 Turbo
« Reply #54 on: October 24, 2019, 03:50:58 pm »
That document you posted explains the LED's which point to a possible issue. The part about swapping the ECU
with a repaired on is doubtful though.
 

Offline Bwana

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Re: Honda CX500 Turbo
« Reply #55 on: October 24, 2019, 03:58:54 pm »
I agree however the ECU does open up so I suppose it is repairable. It also seems like this one is working fine however there are sensors all over the bike. I think we are just going to have to go through it very carefully.
 

Offline Bwana

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Re: Honda CX500 Turbo
« Reply #56 on: November 22, 2019, 12:00:38 pm »
Progress report. I have now decided to go through everything. Found a Forum on rebuilding these bikes. Apparently the ECU will not register if just one the sensors are faulty. These are not available anymore but a 2003 Toyota corolla has the same sensors. Turbo Charger Dump valve was seized and there was some play on the shaft so had the whole Turbo Charger reconditioned back to new luckily Turbo Clinic in PE specialize in these Turbos. The exhaust box after the Turbo is worn through so this has gone out for a rebuild. Remember this has a manifold to the Turbo.Waiting for some new gaskets to be made. Looking for new front indicator lenses as mine are badly faded and sun damaged. Apparently there is some one in PE that specializes in these bikes and has a whole lot of them including three that have been totally rebuilt back to new. If anyone knows who he is I would really like to contact him. The picture might make the turbo look big but believe me it is tiny. 
« Last Edit: November 22, 2019, 12:43:10 pm by Bwana »
 

Offline katana

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Re: Honda CX500 Turbo
« Reply #57 on: November 22, 2019, 12:55:02 pm »
Pardon my ignorance, but why copper nuts?  They will expand quicker than the turbo manifold studs.
If you want to haul ass, you gotta mix gas.
 

Offline Bwana

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Re: Honda CX500 Turbo
« Reply #58 on: November 22, 2019, 01:00:19 pm »
Copper is very tolerant to high and low temperatures and they do not seize. They are standard on many Turbo Chargers.
 

Offline Beebop

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Re: Honda CX500 Turbo
« Reply #59 on: November 22, 2019, 01:06:29 pm »
Copper is very tolerant to high and low temperatures and they do not seize. They are standard on many Turbo Chargers.
Also used on exhaust manifolds.