1986 Husky 510 4-stroke project bike

Guys,
Ok, my 1986 Husky 510 4-stroke project is finally moving forward, this is the most involved project i've every taken on. See i bought this bike as $100 parts bike? in 08/08 not sure if i saw thru all the work it needed, or because i've never seen one before. Well, with a motor that had spark my project began.
Over the past year ,i found the 2 missing side cover /number plates,& air box assy, replacement front brake master cylinder, fenders & seat - to go with motor with less compression then a 125 2 stroke.

As i know nothing about 4 strokes i dropped it off at a friend's shop, in 6/09 with the knowledge that when he got some time he'd pull it apart. I already know it would need piston & rings/bore job, but never knew stock valves were so expensive.

Luck was on my side,the piston was a original bore, but the valves where burnt badly. It came down to, all new lower end bearings (for extra insurance as i planned on racing this bike), new Wiseco piston, valves, guides, valve seat grinding & complete gasket set. I'm still amazed that Halls Husky had most parts in stock, & i was able to get a new first over Piston on Ebay. In went Kibblewhite black diamondback valves instead of Husky ones, because the original were $450 vs $150.

With motor projects, it's usually better to, not be cheap, if your planning on keep whatever it is your fixing, at least that's what i tried to tell myself. As this project keep getting pushed back on the funding/priority list,6 month later, the motor rebuild is at last finished .

Can you polish a turd?

Here's a few pictures of a afternoon of cleaning, & then later with few Husky items from Ebay (air box etc.)

John

They don't call me Husky John for nothing

Rick,
Yeah, thanks for the words of encouragement , technically i'm doing 3 restorations at the same time a 73 125WR too, lucky that ones my buddy's and he's paying for his.

My good friend Paul at "Whoop de doo cycle" in NJ, loves vintage MX & he's been doing all my motor work. I consider myself extremely lucky to have his shop were i can work on my bikes & he doesn't mind have a bunch of old Husky s in pieces all over.

This 510 rebuild has been a tough one, both in time & getting parts, it's had more starts and stops then a NYC taxi.

But that's why they don't call me Husky John for nothing .

86 decomp cable?

Art,
Where did you find a decompression cable ? Mine broke today-right
at the lever?

Husky John

The story/build continues- Twin shock racer?

Art,
Thanks i'll look into those for my decomp cable.


Guys,
Well the story continues, in August 09 as we had close to all the motor parts , i started tossing around the idea of making a twin shock version drum brake racer out of it using a 1981 250CR rolling chassis, i found for a $100.

In November i test fitted the almost complete motor in this chassis, & it fits, with only some minor frame mods needed to clear the carb better & leaving room for a pod filter or some type of airbox & some new motor mount plates.

Note you'll need either an aftermarket exhaust or head pipes from the older (83-85) twin shock models also, but the pipes do clear the front frame.

finished motor finally, & back in

Ok, motor is done, never hear this one run so before so before i go too crazy with the twin shock frame version back in the stock frame it goes.

Got to make sure every thing works the way it should before i tackle frame modifications & air box fab,etc.

Not the prettiest looking bike,but considering what i started with i can't
complain.

Husky John

It's alive

Guys,
Got my 510 start & rode it up & down the street last night

Also damn near killed myself as the tires only had 4psi in them,my
back brake was so out of adjustment it didn't work & the front
disc is too powerful. Kicked it a few times,sounded like it waited
to start so i jumped it, fired right up, up the street i go. Go to
turn around & find no back brake & road salt all over the place,
grap the front brake & almost go on my head LOL.

Rode it back to the garage & out came the tools , now i've finally
seen the light at the end of the tunnel (hope it's not a Train )

Now start the cosmetic clean up, my favorite part of bike rebuilds,
as you see the most difference.

And of course I called Paul (friend/mechanic) 1st thing ,to tell him the great news
I owe him lunch on Sat.
later
Husky John

Used a Dellorto

Michel,
Not i couldn't get the bike start with the Mikuni carb that was on the
bike when i got it. Bought a used Dellorto 40mm off Ebay & that
seem to do the trick .

This carb has 170 main, 52 pilot, 60 starter, 50 slide, k32 jet needle,
& AB265 needle jet
Husky John

1 step closer

Guys,
Ok, 1 step closer to finishing , refinished gas tank with graphics
from HWY (thanks Art), new seat cover, more cleaning & polishing,
replaced sagging rear shock with another.

Now some fine tuning, fork rebuilding & finally some riding of this
near 2 year project, i'm pleased with how it's coming out.
Considering the trud i started with .

I'll post step 2 which will be the building of the twin shock Vintage
racer, later this season.

Husky John

Looks GREAT Nice work.

The vintage forum here on CH is really cool. Love the vintage pix and builds. Keep them coming