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Re: 1990 KDX200SR
Posted: 03:00 am May 26 2021
by hi-def
Re: 1990 KDX200SR
Posted: 08:27 am May 26 2021
by Slick_Nick
Those fork guards are interesting, I've never seen a translucent white set like that before.
Re: 1990 KDX200SR
Posted: 04:48 am May 29 2021
by hi-def
They are reproduction parts, they needed a little bit of tidy up from the manufacturing process but with how little they cost they are very good value.
Re: 1990 KDX200SR
Posted: 03:49 am Jun 08 2021
by hi-def
A pic of how it currently is
Re: 1990 KDX200SR
Posted: 05:43 am Jun 09 2021
by KDXGarage
Better run on down and pay up while you can!
Re: 1990 KDX200SR
Posted: 10:39 pm Jun 30 2021
by hi-def
Re: 1990 KDX200SR
Posted: 08:09 am Jul 01 2021
by KDXGarage
Nice job on the bike. Terrific picture of the water!
Re: 1990 KDX200SR
Posted: 05:39 am Jul 08 2021
by hi-def
Since the urgent job has been done I can now look at the engine. I know for sure it needs new crank seals but had no idea what condition the rest was in.
Early findings are promising, piston and cylinder look good other than being quite sooty, will measure them for spec soon. Powervalves move easily (without slipping) when the rack is moved, yet to see if there are any sheared pieces hidden below.
Re: 1990 KDX200SR
Posted: 12:44 am Jul 09 2021
by hi-def
Looking pretty good
Re: 1990 KDX200SR
Posted: 05:53 am Jul 22 2021
by hi-def
Re: 1990 KDX200SR
Posted: 09:06 am Jul 22 2021
by KDXGarage
The insides of those cases look super clean. What did you do?
Re: 1990 KDX200SR
Posted: 05:18 am Jul 23 2021
by hi-def
I didn't need to do much, I only wiped a small amount of oil sludge from the very bottom of the cases, the rest I haven't touched. The crank is a different story, must have had some water in it at some point as the webs show spots of corrosion and so did the LH crank bearing.
Re: 1990 KDX200SR
Posted: 12:49 pm Jul 23 2021
by KDXGarage
Well that sucks!
Re: 1990 KDX200SR
Posted: 08:09 am Aug 02 2021
by hi-def
and with the gear removed
vs standard (not my pic)
Re: 1990 KDX200SR
Posted: 11:19 pm Aug 02 2021
by KDXGarage
THANK YOU!! for the picture showing a difference to what many of us have seen 100 times over the years.
Re: 1990 KDX200SR
Posted: 12:47 am Aug 23 2021
by hi-def
Almost finished the rebuild
I ended up replacing a couple transmission bearings as they weren't feeling 100%
Used freezer and oven to get them in
Seals
Crank bearings
Re: 1990 KDX200SR
Posted: 12:51 am Aug 23 2021
by hi-def
Then used the hot slug method to install the crank
Shims to centre the crank
Gearbox in then left case half.
Nice and centered
Re: 1990 KDX200SR
Posted: 12:54 am Aug 23 2021
by hi-def
Didn't get to use the crankshaft puller I made as the heat method worked well.
Bottom all back together
Re: 1990 KDX200SR
Posted: 12:10 am Sep 06 2021
by hi-def
My new piston arrived so I got the rest of the engine back together and in the frame.
No break in ride yet as I'm waiting on a replacement kickstart lever nut as the thread has been chewed up by a previous owner, I'll loctite the new nut on but will probably source a new shaft eventually.
Re: 1990 KDX200SR
Posted: 04:02 am Sep 06 2021
by KDXGarage
Good job!