Author Topic: 78 750F Chopper/Digger  (Read 77803 times)

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Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #125 on: March 02, 2012, 07:57:16 AM »
The fuel tank still had some rust in it, which clogged up the fuel filter.  So I decided to take it to my local radiator shop and have it professionally cleaned and sealed.  That should be done mid next week.  Since it will be fuel free when I get it back, I will take the opportunity to paint it.

I got the anti-pod kit from Tintop!  Unfortunately the voltage regulator needs to be moved before I can mount it.  Where do I want to move it?  To where the starter is.  Where am I moving the starter?  To the garage shelf.

I'm going to eliminate the starter since this engine kicks over so nicely.  The regulator is going to be relocated to where the starter goes.  This will get rid of a lot of wiring and the solenoid.  Should tidy things up a bit.

Also while I have things apart, the carbs are very rich.  When I got them, they had the throttle valve cutaway reduced to increase fuel in the 1/4 to 1/2 throttle range.  They also have a washer under the needle clip (increases fuel in the same range), along with 125 main jets, which seem excessive for my setup.  I don't know what setup the bike had that these came off, but I need to tone them down.  So the washer will come out and 110's will go in.  I'll keep the throttle slides with the cutaway mod though.

Stay tuned!

Offline valt

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Re: 78 750F Chopper/Digger Project
« Reply #126 on: March 03, 2012, 06:07:05 AM »
How are you making a plug for where the starter shaft goes? I have not heard how people are doing that yet.

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #127 on: March 03, 2012, 08:37:45 AM »
How are you making a plug for where the starter shaft goes? I have not heard how people are doing that yet.

I've taken another starter apart and kept the two aluminum ends.  I knocked the bushing and seal out of the front end.  At this point, it readily accepts a 1/2" npt pipe tap.  I tapped it from the side that faces away from the hole in the engine block until a 1/2" pipe plug would seat flush.  Using these two ends, I am going to make a bracket to connect the two ends which I will also mount the regulator to.  The rear end will bolt to the engine block as usual and the starter cover will also serve to hold the top of the two ends together.

My crude illustration here should give an idea of the set-up.  The blue is the bracket, gray end caps, gold bolts, and black regulator.  Once the actual set-up is complete, I will take pictures.  For now, I also have the end with the plug done, so here's two pics of that.

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #128 on: March 09, 2012, 10:38:04 PM »
So it's been a busy week in the garage.

Pulled the starter out, along with the gear behind the alternator cover.  Removed all the associated wiring and the solenoid.  I wonder how much all that weighed!  Relocated the voltage reg/rect to the starter hole.  So now, instead of having a bunch of wires coming from the engine, I have only two!  I love simplicity.

Made a new horizontal license plate bracket since Illinois doesn't approve of vertical.  Also pulled the blue dot lens off for the time being and put on a regular one.  I don't want anything to upset the guy who comes to inspect this bike.

Carbs got leaned out a bit.  Reinstalled them along with Tintop's anti-pod filter set-up.  That thing is sweet!  I love how it purposefully fills the void that was in that area of the bike.

Tank is cleaned and sealed but will be getting painted before filling with fuel again.  I just put it on the bike for photo purposes.

Waiting on a few documents, but the title application papers should get mailed out next week.  Keeping fingers crossed!

Offline CBJoe

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Re: 78 750F Chopper/Digger Project
« Reply #129 on: March 09, 2012, 10:46:41 PM »
very slick!  I'm almost sad that you're going to paint it..... the bike has a very cool vibe in it's current state.

Joe
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline harisuluv

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Re: 78 750F Chopper/Digger Project
« Reply #130 on: March 10, 2012, 03:10:33 AM »
What a sick stance on that.  Nice work.

Offline nayto550

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Re: 78 750F Chopper/Digger Project
« Reply #131 on: March 12, 2012, 08:00:27 PM »
Love those pipes, do you happen to know who made them?
1976 CB550F
1976 CB750F - in resurrection process
1988 HD FLHS

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #132 on: March 12, 2012, 09:55:58 PM »
Love those pipes, do you happen to know who made them?

I have no idea.  I've only seen them on two other bikes ever.  I know a few guys who would jump at the chance for some.

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #133 on: March 15, 2012, 11:33:05 PM »
So I started painting the tank.  Mind you, I am not a painter by any stretch.  If nothing else, my goal is to lay out something half-ass decent and take the tank to a professional and say "I want it to look like this, just not #$%*ty."

Duplicolor rattle can is my M.O.  Base coat of Hemi-Orange laid out.  Then taping, then Daytona Yellow.

Don't judge until I'm done; you might like it.  And BTW, the color is orange like the engine.  I don't know why it's showing up red.

Offline Retro Rocket

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Re: 78 750F Chopper/Digger Project
« Reply #134 on: March 15, 2012, 11:43:37 PM »
Quote
So I started painting the tank.

About f@#!^&% time...... ;D

You would be surprised how good a job can be achieved by rattle cans. See how you go experimenting, you could save yourself a few dollars doing it yourself....
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #135 on: March 16, 2012, 05:33:30 AM »
About f@#!^&% time...... ;D

Yeah, I thought so.  The frame is going to stay bare until I get it stamped.  Then it will get some mild molding and paint as well.

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #136 on: March 17, 2012, 11:03:38 PM »
So last night I taped off the yellow pinstripe using 1/8" masking tape and shot the tank with red.  Tonight I laid out lace fabric on the tank and shot with black.  Tomorrow I will take off the rest of the tape and shoot with clear.  Check out the progress:

Offline Raef

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Re: 78 750F Chopper/Digger Project
« Reply #137 on: March 18, 2012, 04:16:29 AM »
that is certianly a chain of interesting choices ;D

Offline KB02

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Re: 78 750F Chopper/Digger Project
« Reply #138 on: March 18, 2012, 07:11:17 AM »
I will admit that I, personally, am sick of seeing skulls on custom paint jobs, so the lace is a refreshing choice. Don't know if it is the choice that I would have made, but I can't wait to see the finished product! I love seeing painting tricks like that. Well done!
1978 CB750K Project
2000 Ducati ST2
...and a pedal bike

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My project thread Part I: K8 Project "Parts Bike"
My project thread Part II: Finishing (yeah, right) touches on Project "Parts Bike"

Offline the technological J

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Re: 78 750F Chopper/Digger Project
« Reply #139 on: March 18, 2012, 10:06:53 AM »
ya def im thinking of doing some ghosted lace on my next project
70 KO...sold to fund the ST http://forums.sohc4.net/index.php?topic=88800.0(Alpha)
74 Kaw 250 Enduro http://forums.sohc4.net/index.php?topic=124278.0
K4 added to collection! http://forums.sohc4.net/index.php?topic=104784.0
78 750K... http://forums.sohc4.net/index.php?topic=60257.0 (Omega)sold to fund the K4
94 ST1100..Gone
72 750 K2 Stay tuned!

Offline theofam

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Re: 78 750F Chopper/Digger Project
« Reply #140 on: March 18, 2012, 10:14:17 AM »
Coffin tank, lace, I dig it.  Seems spot on for the look you've got going.

I've thought about using the starter area for a battery on my long-dormant 550 build.  My main concern is temperature. Does the voltage regulator need airflow to keep it cool/operable?  If so, maybe Frankenstuff could build you a clear, louvered starter cover to match the points cover.

Hard to believe how far you've come from the original scoot!

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project
« Reply #141 on: March 18, 2012, 10:31:31 PM »
Okay.  Here's what it looks like with the tape all off.  I'm clear-coating as I type.  I must say, for the price of spray paint, masking tape, and some lace, I'm diggin the results!

Offline brandEn

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #142 on: March 19, 2012, 01:36:02 AM »
Effin cool man. Good job.

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #143 on: March 21, 2012, 09:00:16 PM »
The paint changes everything!!!  I also added the mini tach and speedo from CycleX and the state-required horn.

Offline Retro Rocket

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #144 on: March 21, 2012, 11:51:11 PM »
Looks cool, blends in well with the engine,  how about some more shots of the bike now mate..... ;)
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline the technological J

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #145 on: March 22, 2012, 07:08:11 AM »
took the words outta my mouth... this just a teaser shot
70 KO...sold to fund the ST http://forums.sohc4.net/index.php?topic=88800.0(Alpha)
74 Kaw 250 Enduro http://forums.sohc4.net/index.php?topic=124278.0
K4 added to collection! http://forums.sohc4.net/index.php?topic=104784.0
78 750K... http://forums.sohc4.net/index.php?topic=60257.0 (Omega)sold to fund the K4
94 ST1100..Gone
72 750 K2 Stay tuned!

Offline SOHC Digger

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #146 on: March 22, 2012, 08:31:15 AM »
Don't mean to be a tease.  Here you go!!!







Offline zzpete

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #147 on: March 22, 2012, 01:23:04 PM »
 8) DUDE!!! FLOWER POWER!!! Let's see where did I put that bong???? Nice work Robert!!
« Last Edit: March 22, 2012, 02:44:54 PM by zzpete »
"One of the things that make motorcycling so great because it never fails to give you a feeling of freedom and adventure." - Steve McQueen

Offline hapakev

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #148 on: March 22, 2012, 02:03:42 PM »
I like that clutch lever, whats that off of?
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1978 CB750F(ish)

"Keep moving forward, until you can no longer move" KP

Offline wedoo2

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Re: 78 750F Chopper/Digger Project - Fresh Paint!
« Reply #149 on: March 22, 2012, 06:11:48 PM »
The seat looks almost plush compared to a lot of the choppers; and the Bears orange is great.  If you ever ride that thing around Terre Haute let me know.  From the looks of things I may be able to hear it.
Some days the sun is too loud.