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Author Topic: Glutton for punishment 71 Yamaha cs3  (Read 2485 times)

Offline Akastus

  • Posts: 213
Glutton for punishment 71 Yamaha cs3
« on: Mar 02, 2016, 13:33:08 »
Well, I finally did it, I fell off the deep end. There was a guy out here that had a 71 Yamaha cs3 200cc 2stroke for dirt cheap. It was ugly and didn't run. He claimed the usual "ran when parked" which I NEVER believe. At the end of his ad he said he was interested in some trades, and it just so happened that he was looking for a pair of saddlebags. Well, I just so happened to have some laying around. Some talking with him, and an exchange of bags and a few bucks later I'm now the new owner.

Plans are to cafe it out (because that's what the kids want out here) and sell it!

Pics forthcoming

Sent from my HTC Desire 510 using Tapatalk


Re: Glutton for punishment 71 Yamaha cs3
« Reply #1 on: Mar 02, 2016, 15:55:02 »
Cool bikes, I just got a CS5 running (with 55 og miles!)  and sold it off. Be careful with those carbs -- I needed one for the CS5, used one I found from a CS3 (after a lot of searching) but the choke mechanisms were different...
"Remember when Goldwings were sexy? Me neither" -- Comet Tavern bathroom, Seattle.

Offline VonYinzer

  • DTT SUPPORTER
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  • Posts: 18371
Re: Glutton for punishment 71 Yamaha cs3
« Reply #2 on: Mar 02, 2016, 20:49:39 »
I'm a sucker for Yamaha smokers, signing up.
« Last Edit: Mar 02, 2016, 22:41:48 by VonYinzer »
Like a river that don't know where it's flowin'
I took a wrong turn and just kept goin'

Offline Akastus

  • Posts: 213
Re: Glutton for punishment 71 Yamaha cs3
« Reply #3 on: Mar 02, 2016, 22:34:13 »
Alright guys heres some pics from the craigslist ad:







Those bars had to definitely go! I ended up giving them to a buddy of mine that owns his own shop. Turns out, he just happened to be looking for a set for his brother in law.

So I get it home and check it out a little closer. The engine is free and a quick compression test shows that it has alright compression (not perfect, but still decent). I throw a battery in that I had sitting around, and after a spark plug cleaning and recharge, I had spark!

So off come the carbs, and I gotta tell ya, they were horrendous! It looked like an alien landscape in those bowls! But, I cleaned them up rather diligently, and slapped them back on. Previous owner had some sort of plumbing tap attached to the tank, so I just bypassed it with a funnel and new hose. My plan was to see if it would fire up. Well, I kicked and kicked, and even though it coughed a couple times nothing happened...

Eventually, I tinkered enough with it to get the thing to fire up, but only on one cylinder. A quick inspection of the cold cylinder revealed that the sparkplug was grolly (must have not cleaned it as well as I thought). A quick cleaning, and it fired on the first kick, yay! Not only did it fire right up, but it idled too!

SCORE!

So, as is tradition, I grabbed some parts from work and ordered a crap ton of other stuff. Heres a list!

-Michelin Gazelles
-Fork seals
-grips
-mirrors
-headlight ears (I just happened to have an EMGO 6.25" chrome headlight assembly lying around. Freebie!)
-Clubman bars that i had lying around as well (because thats what all these college kids want) though I may switch to drag bars
- clutch, throttle, and brake cables
-airfilters
-chrome generator cover
-petcock
-Fiberglass cafe tail from hotwing glass
-RK chain
-tailllight
-gear shift lever

Plans are to cut the rear fender down a little, mount the cafe tail, paint up the body work, slap on all the new stuff, clean up the chrome, and sell it.

Also, heres where it sits now:

Offline DohcBikes

  • Posts: 2384
  • Fuck You.
Re: Glutton for punishment 71 Yamaha cs3
« Reply #4 on: Mar 03, 2016, 17:40:23 »
I'll watch
burning bridges sometimes light the most productive paths

Offline Akastus

  • Posts: 213
Re: Glutton for punishment 71 Yamaha cs3
« Reply #5 on: Mar 04, 2016, 00:05:18 »
Color test while I wait for my parts



Its a color called cast coat iron. Looks like anthracite with a slight gold tint to it. I think ill go for it

Offline Akastus

  • Posts: 213
Re: Glutton for punishment 71 Yamaha cs3
« Reply #6 on: Mar 06, 2016, 21:57:09 »
Parts have started steadily coming in. So far I have the petcock, cables, generator cover, and fork seals. I already have the tires, battery, and grips. I have replaced one fork seal (these forks are wierd), cleaned up a bunch of chrome, mounted the tires, and painted the tank and one side cover. This next week is going to be a mad dash to get all the stuff on.

Also, this 2 stroke gunk is hard to remove! Upside is that it has preserved the chrome very nicely on some parts :)

Offline Akastus

  • Posts: 213
Re: Glutton for punishment 71 Yamaha cs3
« Reply #7 on: Mar 08, 2016, 23:56:54 »
Seat came in!

Does anyone know the size of the oil injection lines, and whether or not I can replace them with rubber hose? They are really brittle, and one snapped on me

Online cxman

  • DTT SUPPORTER
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  • Posts: 2317
Re: Glutton for punishment 71 Yamaha cs3
« Reply #8 on: Mar 09, 2016, 06:50:42 »
mine is in storage but if you cant find the line size pm me and i can go measure it on the weekend
1978 CX650 Super Deluxe
1979 XS1100 Special
1980 XS650
1980 cx500  The Beast
1983 GL650 i
1983 cx650 Custom
1973 CB450
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1977  gl1000
1976 gl1000 LTD
 1983 GL1100 Nekid
and a bunch of others

Offline Akastus

  • Posts: 213
Re: Glutton for punishment 71 Yamaha cs3
« Reply #9 on: Mar 11, 2016, 03:00:36 »
I got it all taken care of. We have 1/8in polyurethane tubing at work, ends up it fits really well! So, you may want to file that one away

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