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Author Topic: Honda "l'arancio dolce" CB 750 Resto-Mod Project  (Read 591 times)

Offline der_nanno

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Re: Honda "l'arancio dolce" CB 750 Resto-Mod Project
« Reply #10 on: Nov 11, 2017, 05:10:03 »
Is there someone in the forum that offers this service?
Do you have recommendations?

Well, yes there is.

With regards to no spark: clean the points and then follow the procedures. Checking plug caps, put the multimeter in resistance mode and set it to 20k. Caps should be around 5k. (Don't worry if they show 4000 or 6000, that's just down to the inaccuracy of cheap multimeters, as long as it shows some resistance, you're most likely fine.)

'77 750 shouldn't have a clutch or neutral switch cut-out switch.

Be aware that the exhaust, if polished up, might be quite sought after. If reasonably rust-free as only the early versions are available as replicas.
Real freedom starts with the freedom of thought.

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My XS Triple Sidecar build here on DTT:
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Offline irk miller

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Re: Honda "l'arancio dolce" CB 750 Resto-Mod Project
« Reply #11 on: Nov 11, 2017, 08:04:19 »
Well, yes there is.

With regards to no spark: clean the points and then follow the procedures. Checking plug caps, put the multimeter in resistance mode and set it to 20k. Caps should be around 5k. (Don't worry if they show 4000 or 6000, that's just down to the inaccuracy of cheap multimeters, as long as it shows some resistance, you're most likely fine.)

'77 750 shouldn't have a clutch or neutral switch cut-out switch.

Be aware that the exhaust, if polished up, might be quite sought after. If reasonably rust-free as only the early versions are available as replicas.
Stock resistance on the 1977 plug caps is 10k ohms.  They left very little room from being good to being burned out.  5K is what the NGK OEM style replacements should be.  Also, 1977 model does have a neutral safety switch and a clutch safety switch. 


Offline Ryan Stecken

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Re: Honda "l'arancio dolce" CB 750 Resto-Mod Project
« Reply #12 on: Nov 15, 2017, 03:52:51 »
Hey guys!

"neutral safety switch and a clutch safety switch"-->does that mean that the bike won´t have spark if started in 1st or any other gear?Irk could you elaborate?

Nanno, the exhaust (OEM Honda,we have 2 sets of them) is in amazing shape,it will however get a rechrome,since the back ends are corroded and need a repair.(see pic).

The first task will be getting the bike to start and run a few strokes.
New intake rubbers (I hope I will get the carbs out of the hardened old ones,heatgun will help),cleaning the carbs and points,probably new plug caps,plugs and plug wires and fresh gas,lets see what happens :-)

Offline der_nanno

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Re: Honda "l'arancio dolce" CB 750 Resto-Mod Project
« Reply #13 on: Nov 15, 2017, 05:05:27 »
Check the sidestand and the clutch lever. If there's (electrical) cables, you actually have a cutout switch. With the bike obviously being ex-Austrian-police-spec, I doubt there is. Normally such would prevent the starter from working and not the ignition.
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline irk miller

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Re: Honda "l'arancio dolce" CB 750 Resto-Mod Project
« Reply #14 on: Nov 15, 2017, 07:53:02 »
I don’t know the nuances of a police spec 7fitty, but you normally need to have the bike in neutral with the clutch engaged to get the starter to turn as der_ nanno said. You still get power to the coils, so that can be checked with a meter. I swapped out for a different solenoid to bypass my safety switches, but you can also install a jumper. I’m not sure how the police version would’ve done it.


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