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Author Topic: Project Dirt Rat  (Read 1406 times)

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Offline Ayuhh

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Project Dirt Rat
« on: August 04, 2019, 08:17:12 am »
Hello, quick breakdown of progress to date on my 1974 CB750K4.

Picked up the bike on craigslist for $600, came with some great parts, and a shortly discovered failing 2nd gear.

-Dyna coils
-Mac 4 into 1 exhaust
-GL1000 forks
-New Battery

https://photos.app.goo.gl/c2ECkkzsqP7U2ypUA
« Last Edit: August 04, 2019, 08:19:38 am by Ayuhh »
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #1 on: August 04, 2019, 08:25:33 am »
Put some knobby tires on the bike, it has a 16" rear wheel. fabbed up a cafe style hoop for the seat. welded the stock rear blinker mounts back onto the frame.
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #2 on: August 04, 2019, 03:45:42 pm »
Sanded down the tank to find bondo on one side, so got that all off and took a hammer to the other side of tank to make space for my knees. let it rust for a few days and sprayed it with clear coat. Used the MAC headers and made a custom muffler with minimal baffles. I also made a seat with open cell foam that acted like a sponge, but ripped around with no 2nd gear like this for the summer!
« Last Edit: August 04, 2019, 03:48:29 pm by Ayuhh »
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #3 on: August 04, 2019, 03:57:32 pm »
Pulled the motor and cracked the case over the winter to get a look at the blown 2nd gear. adjusted the valves and replaced gaskets as I went.
« Last Edit: August 04, 2019, 03:59:27 pm by Ayuhh »
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #4 on: August 04, 2019, 04:33:48 pm »
Ordered new race cut gears and dogs from Cycle X, great product and super fast shipping. Swapped out the points system for an electronic ignition.
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #5 on: August 05, 2019, 01:35:03 pm »
Took the frame and swing arm down to metal, welded on some tabs for the seat and oil cooler. Painted
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #6 on: August 05, 2019, 01:44:17 pm »
added some cheap rear coil overs from 4into1.com to replace the basically frozen set that was on there. finished heat wrap on the exhaust. added LED plate lights. Built closed cell foam seat. cheap universal taillight. new chain and sprocket, geared pretty low.

Second gear hooks and stays now!
 
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #7 on: August 05, 2019, 01:50:07 pm »
Sewing the leather for the seat was by far the hardest part of the build. I messed up multiple times and spent about two weeks trying to get it looking presentable.
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #8 on: August 05, 2019, 01:55:16 pm »
Some pics of last summer, and how she looked before this past winter.
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Offline Ayuhh

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Re: Project Dirt Rat
« Reply #9 on: August 06, 2019, 06:57:34 am »
Things got weird when i found this Arthur Fulmer front fairing on craigslist for $35!
It was a frame mount fairing, and my idea was to mount it to the forks. So I decided to chop up this beauty, RIP, to make it work. Also wanted some audio so threw in some waterproof 6.5" speakers. My fiberglass work is not great, but this bike was not built to look perfect..
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Offline spotty

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  • cb750....for when a Vmax is just too much bike
    • spottys world of vmaxes and great danes
Re: Project Dirt Rat
« Reply #10 on: August 06, 2019, 10:26:23 pm »
is it perhaps mushroom season up there in the NE corner ?  :D
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i blame Terry

Offline Gurp

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Re: Project Dirt Rat
« Reply #11 on: August 17, 2019, 05:11:06 am »
Diggin it. Hows the fairing mounting coming along?
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slow Progress 74 cb550.

Poor boy chop 73 CB500 chop

Future project 77 Cb750 Amen Savior

Offline Short shins

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Re: Project Dirt Rat
« Reply #12 on: August 17, 2019, 02:13:14 pm »
Quote from: Gurp on August 17, 2019, 05:11:06 am
Diggin it. Hows the fairing mounting coming along?
Dunno but some crazy stuff going on there...
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I love sleep. My life has the tendency to fall apart when I'm awake, you know?”
Ernest Hemingway

Offline SF

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Re: Project Dirt Rat
« Reply #13 on: August 18, 2019, 10:09:10 am »
Cool build....the yellow screen fits the look


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92 wr250 sold
98 zx6r sold
04 zx10r
73 cb350 twin
75 cb550f
75 cb550f
72 r5c
rgid springer bobber project
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