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Author Topic: 1982 CB750F Resto-mod. At least that's the current plan.  (Read 3209 times)

Offline The Jimbonaut

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #80 on: Sep 14, 2018, 11:32:17 »
Got into work a couple hours early yesterday - now that I know my way around the tire changing machine, slinging on my own rubber was certainly a first.  Big Red takes a bit of getting used to, but with the benefit of time on my hands the job's a good'un...



Not sure what looks better, the new-look wheels or the startlingly red hydrant -



Love me some new rubber.  Definitely a wider rear tire than Rhonda, dig the look and looking forward to getting the wheels back on the bike.  Hopefully got a long ride planned on Sunday but Saturdays plans are up in the air - need to do some work on Rhonda but also hoping to get this CB closer to her inspection.  Carbs need a vacuum synch and brakes need bleeding, but hoping everything else will be ok enough to squeak through the safety exam.  Then it's gloves-off time.

Avantť.
« Last Edit: Sep 14, 2018, 11:34:35 by The Jimbonaut »
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline Maritime

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #81 on: Sep 14, 2018, 11:48:56 »
Nice. 
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline The Jimbonaut

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #82 on: Sep 24, 2018, 10:27:48 »
Got the wheels back on and started cleaning out the crud from the tank.  On first inspection it looked clean as a whistle but there is in fact some old gas and varnish (no rust though) so got the old nemesis MEK in there overnight doing its thing.  Plugged up the petcock hole with a rubber cork-type-thingy.  Hoping it's held, otherwise, well, bad things are happening in the garage as I write.

Once the wheels were back on I actuated both front and rear brakes - the front is working just fine but the rear caliper seems to have seized completely on the disc - I can barely move the wheel.  I'm thinking the best course of action is to crack the bleed valve, pry the caliper off and dismantle the thing for a proper clean.  It looks a little toasty.
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline irk miller

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #83 on: Sep 24, 2018, 11:11:07 »
MEK is used to add patches, or bond, damaged urethane rubber by breaking down the outer layer and making it tacky.  A significant amount of MEK coming in contact with urethane rubber will completely dissolve it

Offline The Jimbonaut

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #84 on: Sep 24, 2018, 11:15:22 »
Once Iíve got breakfast down me Iíll find out one way or another...


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Offline Maritime

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #85 on: Sep 24, 2018, 11:17:09 »
Ha, it also melts ABS to make a slurry for repairs. Used it on the camper, going to do it again. Makes you dizzy if you forget the mask too.
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline The Jimbonaut

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #86 on: Sep 24, 2018, 11:42:21 »
Makes you dizzy if you forget the mask too.
If by dizzy you mean total cranial meltdown then yeah, dizzy  :o
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline The Jimbonaut

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #87 on: Sep 24, 2018, 12:36:40 »
Wheels, on -



MEK, marinating -



Rubber bung held up nicely, giving it another hour then draining the stuff.  Damn that stuff does not fuck around in any way whatsoever.
"I'm telling you Donnie, nuthin' but nuthin' but right"


Offline The Jimbonaut

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Re: 1982 CB750F Resto-mod. At least that's the current plan.
« Reply #89 on: Sep 24, 2018, 14:57:44 »
Got the MEK out without any characteristic mishaps, so that was a first.  Man that stuff makes quick work of varnish.  Dumped 4 litres of gas in the tank to see if the petcock I salvaged was in decent shape - turns out it isn't, and I'm pretty sure these model petcocks aren't rebuildable.  So on the hunt for a replacement - remember this being a ball ache with the other CB so hoping not for a repeat of that.

Pretty happy with the state of the tank's insides - apart from a bit of rust and Montreal's unhappiest wasp very little else came out.

"I'm telling you Donnie, nuthin' but nuthin' but right"