Posts
309
Joined
11/22/2010
Location
USA
Edited Date/Time
1/27/2012 6:14pm
Here are the pictures and descriptions of the engine restoration
for my 79 CR250. I disassembled the engine, cleaned and
measured all the components, The crankshaft was sent out for
a rebuild and I NDIed the tranny components. All the springs,
thrust washers and circlips were replaced along with any part
that didn't spec out. Incredibly, the cylinder still had the original
chrome bore and was in excellent condition.
After repairing the corrosion and other problems with the various
parts, I painted the inside of the cases and clutch cover with color
matched Glyptal paint. I temporarily bolted the cases, clutch cover,
ignition cover, cylinder and head together and powder coated every
thing Satin Tahitian Red as a unit.

Stripped and repaired clutch cover

Inside of clutch cover after paint

Finished clutch cover

Right side case after paint

Right side case after paint and powder

Left side case with new bearings and seals

Loaded Right side case

Cylinder

Finished cylinder head

Restored carburetor

Shift and kickstart assemblies

Unique flywheel

New clutch

Leak down test. Held 6 psi for over ten minutes

Finished engine right side

Front

Back
Hope everyone has a Happy Thanksgiving.
dogger
for my 79 CR250. I disassembled the engine, cleaned and
measured all the components, The crankshaft was sent out for
a rebuild and I NDIed the tranny components. All the springs,
thrust washers and circlips were replaced along with any part
that didn't spec out. Incredibly, the cylinder still had the original
chrome bore and was in excellent condition.
After repairing the corrosion and other problems with the various
parts, I painted the inside of the cases and clutch cover with color
matched Glyptal paint. I temporarily bolted the cases, clutch cover,
ignition cover, cylinder and head together and powder coated every
thing Satin Tahitian Red as a unit.

Stripped and repaired clutch cover

Inside of clutch cover after paint

Finished clutch cover

Right side case after paint

Right side case after paint and powder

Left side case with new bearings and seals

Loaded Right side case

Cylinder

Finished cylinder head

Restored carburetor

Shift and kickstart assemblies

Unique flywheel

New clutch

Leak down test. Held 6 psi for over ten minutes

Finished engine right side

Front

Back
Hope everyone has a Happy Thanksgiving.
dogger
My balls hurt.
The 78-79 250's really were one of the prettiest bikes ever.
The Shop
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Luxon 4-Post Bar Mounts
$189.95 - $239.95
BTW, ask Albert if he still needs his carb adapter made.
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