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GS850 Streetfighter

  • Thread starter Thread starter Indy
  • Start date Start date
TheCafeKid said:
Hey Indy...im curious to know what type of paint was used to paint the motor...looks sweet btw, im seriously considering doing it to my 750 motor on my cafe project. Thanks

TCK
Click to expand...

Thanks! I rebuilt and painted this engine, and it's PJ1 Satin Black.

Here are some more views of the engine in assembly:
http://pix.bwringer.com/v/bwringer/79_850_Engine/

PJ1 is great stuff -- just get the engine surface clean, and it quickly builds thick enough to cover all kinds of corrosion and scuffs. It also cures very hard, so rassling the engine and parts around during assembly is not a problem. It's very user-friendly and goof-proof for something from a spray can.

One caveat is that it takes a couple thousand miles and several heat cycles to cure completely. The first several times you get the engine hot, the paint gets very soft and smells pretty bad, but this diminishes over time. If you have access to a VENTED curing oven, you could also bake the parts at a low temp for several hours to cure the paint.
 
Frickin sweet Brian. Where can one purchase this miracle paint you speak of? And what would you charge to rebuild a 750 motor? Out of curiosity. I SHOULD do it myself, but im not all that incredibly well equiped with tools.

THanks!
Josh
 
TheCafeKid said:
Frickin sweet Brian. Where can one purchase this miracle paint you speak of? And what would you charge to rebuild a 750 motor? Out of curiosity. I SHOULD do it myself, but im not all that incredibly well equiped with tools.

THanks!
Josh
Click to expand...

I bought it from J&P Cycles http://www.jpcycles.com/ but I've seen it available in a lot of different 'online' places.

It does look bad ass though. A friend of mine was over last night, and we are working on the shock mounting, and every once in a while we'd catch ourselves just looking at it. lol
 
GSXXZRX said:
Indy, have you ever thought of cutting an oval out of each side of the
swingarm, flipping them and welding them back in. It may give you up to
1/2 inch on either side.
Click to expand...

I looked at doing that.

Near where there would be 'tire interference', there is already a 'clearanced' area on the shaft side (Kind of flat'ish). What more I could do, is probably more work than justifiable.
 
TheCafeKid said:
Frickin sweet Brian. Where can one purchase this miracle paint you speak of? And what would you charge to rebuild a 750 motor? Out of curiosity. I SHOULD do it myself, but im not all that incredibly well equiped with tools.

THanks!
Josh
Click to expand...

You can also get PJ1 from:
http://z1enterprises.com
http://crc2onlinecatalog.com

They have several other colors as well. On my '83 GS850, I painted the engine black and polished the case covers so that the engine (a transplanted '81) would look like the original '83 engine:
83gs850g_fennimore2007.jpg



Sorry, I'm staying out of the rebuilding business for the foreseeable future.

Having a busted leg that wouldn't heal cramped my style severely in this and many other ways this summer and fall, and it took several months of pecking at the project a tiny bit at a time to get this engine done. Rich was pretty patient!

Almost all of the time in any rebuild project was spent in various kinds of cleaning. The engine was in great shape internally with very few miles, but was liberally coated with sandy dirt and baked-on pig effluvia (really) on the outside.

Removing gaskets without damaging the aluminum is an exacting, time-consuming ordeal from the seventh circle of hades. After removing everything I could by hand a scraper, I used fine surface conditioning discs in an air die grinder to get the rest. It works great, but you have to be super careful.

Disassembly and assembly is a cakewalk by comparison. If you dumped the clean, painted pieces of a complete GS850 engine on a table in front of me, I could put it together in a few hours, a little longer in the dark. They're pretty simple engines.

You don't need a lot of fancy equipment, and you'll learn a lot. Even if you're not sure, I'd advise you to dive in. You'll learn a lot!
 
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Cool! Well it sounds like i will have to do just that! I actually just bought another head off ebay for 32 bucks, so i figure i'll start with that. Change the valve seals and all of that good stuff, hopefully the valves that are in it are still good, they assured me they were, but if not then it would be a good time to learn how to do it. I figure i can do this head, still keep my bike intact..then come spring, swap the new one on and do the same to the old one...and somewhere in there get the piston rings done, and maybe tear down the case. We'll see how froggy i get..lol Thanks for the tip on the paint guys! That motor seriously looks FANTASTIC. And hang in there Brian, you'll get thru it..the good guys always do.
 
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