Author Topic: My 74/76/78 supersport frankenstein (Read 5927 times)

Trounce · « **on:** July 07, 2012, 02:02:35 PM »

I started this project back in september 2011 with a frame i bought off craigs list for $100. Its been some what of a long road. I found a donor bike in january with a great motor. march i made another good find with a 78 Supersport front and rear.Here's where I'm at now.

Stev-o · « **Reply #1 on:** July 07, 2012, 02:49:34 PM »

Nice, making good progress now...

Steve_K · « **Reply #2 on:** July 07, 2012, 03:27:41 PM »

I dig bikes having different models in them. It will be cool!
Steve

Trounce · « **Reply #3 on:** July 07, 2012, 03:55:01 PM »

Thanks guys... im a lot farther than the last picture shows. so far I have repainted the supersport rims using a aluminum paint product i found online... ill post pics when they are completely finished. the Forks shown in the last pic are from a gsr. I scraped this idea after the FREE forks were bent. it was part of the deal for the cb100 sitting there... $100 dollars and its mint except for the seat... Motor should be back from the machinist any day... then the real fun begins.

Trounce · « **Reply #4 on:** July 28, 2012, 06:44:04 PM »

Some recent improvements

. The paint on the wheels came out great but I wasn't happy with the frame so I'm going to wet sand and re-clear. I'm wondering... all the parts i coated in flat black came out as smooth as can be....should i scuff the frame, re-spray flat, and clear over instead of going through the hassle of wet sanding the whole frame?

Greggo · « **Reply #5 on:** July 28, 2012, 06:49:41 PM »

Looks nice! What'd you do with the rear spoked hub?

Trounce · « **Reply #6 on:** July 29, 2012, 10:42:02 PM »

still have it....think i might use it on another build.... not sure yet

Trounce · « **Reply #7 on:** August 06, 2012, 09:01:15 PM »

Picked another bike up from a friend who was leaving town..... going to be swapping parts back and forth for the next few days....pics to follow.

Greggo · « **Reply #8 on:** August 07, 2012, 08:57:04 AM »

Haha! Just saw that pic in the 'what did you do to your bike today' thread, and I thought to myself...you guys need a ramp!

FYI, those spoked/disc rear hubs are worth good coinage, and are hard to find..

Trounce · « **Reply #9 on:** August 07, 2012, 12:38:20 PM »

Thanks Greggo, ill keep that in mind. A ramp would have helped....so would looking IN the tank before i bought it. It was 3/4 full and had been sitting for close to 8 years.... needless to say im running through all the tricks to try and save the tank....patience is running thin. On a better not....i got the controls finished on my bike

Trounce · « **Reply #10 on:** August 19, 2012, 09:59:17 PM »

so quick update... TJ at east valley performance has my head and jugs completed. New cycleX valves, valve guides, springs, .50 over pistons, rings, bearings. Bored, decked, honed, and reamed. cant wait to get it put back to gather.

Bankerdanny · « **Reply #11 on:** August 22, 2012, 12:11:50 PM »

My 550 had 2/3 of a tank 25 year old gas in it when I bought it (problably 3/4+ whenit was parked). The tank was heavily varnished and I had to replace the very gummed up petcock, but otherwise the tank was in great shape and rist free on the inside.

I used the Works toilet cleaner method on it and it did a nice job of cleaning out the tank for only a couple bucks.

Trounce · « **Reply #12 on:** October 16, 2012, 07:32:23 PM »

So i was just getting ready to reassemble my case when i noticed that I couldn't find the Main drive bearing oil supply. small box that bolts near the final drive bearing in the case. My question is, is it absolutely necessary.

Trounce · « **Reply #13 on:** October 19, 2012, 05:43:39 PM »

motor is almost done... valve train and timing left...then its on to carbs and electrical...

Trounce · « **Reply #14 on:** December 25, 2012, 07:40:59 PM »

Motor is in...playing with paint and exhaust now....She has come a long way since the junkyard!

70CB750 · « **Reply #15 on:** December 26, 2012, 05:13:06 AM »

Did you fit the rear master cylinder and the brake pedal yet? I have something very similar in my shop now:
K3 frame and 1978F parts - engine, fork, wheels.

rb550four · « **Reply #16 on:** December 26, 2012, 02:38:45 PM »

Gas tank cleaning . I also have a tank with 8 years of varnish in it. I've done the Works a couple of times on different tanks, the flash rust sucks , this time I 'm going to empty the gooey tank and run some paint thinner / turpentine mix to clean the stuff out of it. I don't see any rust in it so why introduce acid and get rust when all you want to do is clean the tank? I'll let you know how it works.

Trounce · « **Reply #17 on:** December 26, 2012, 04:35:36 PM »

;D70CB750 Yes everything is fitted on the rear master. I used a late 80s GSR master cylinder. I welded a medium gauge bracket onto the frame. I used the brake shaft off of the 78. I then cut the actuation arm off the original brake shaft and welded it directly to the brake pedal. In all it took more time to engineer than to actually put together. Ill get some pics up tonight...... The tank off the other bike sounds like a pop can and after running it through the cement mixer tank tumbler i built..... it has more holes in it than i care to fix......

Trounce · « **Reply #18 on:** January 23, 2013, 08:15:06 PM »

Does anyone have a 77-78 super sport front wheel they're looking to part with?

70CB750 · « **Reply #19 on:** January 24, 2013, 04:21:55 AM »

I found rear master from 2003 Honda CBR954r and after studying new bikes in Coleman's Power Sports, I am going to fab an actuator for K brake pedal and weld it together. Should not be hard to do.

Also planning to use the K brake spindle with the K return spring.

Trounce · « **Reply #20 on:** February 21, 2013, 03:32:44 AM »

She has her dancing shoes on..... now lets see if she can do

Trounce · « **Reply #21 on:** July 03, 2013, 10:11:05 AM »

The finished Product....

iron_worker · « **Reply #22 on:** July 03, 2013, 10:16:00 AM »

Wow!

That project came a loooonngggg way! I really dig the blacked out F motors. It also really makes the chrome exhaust stand out.

Great work.

IW

Trounce · « **Reply #23 on:** July 03, 2013, 12:58:42 PM »

the case and valve cover are VHT Cast Iron... head is VHT matt black with polished fins.... motor was out of the 76....sat in the junk yard for almost 20 years before i got to it

cheftuskey121 · « **Reply #24 on:** July 03, 2013, 01:37:57 PM »

a very aggressive stance, I like it. looks like it means business!

News:

Author Topic: My 74/76/78 supersport frankenstein (Read 5927 times)