Engine Rebuild Kit w/ Pistons - Honda CB/CL350K 70-73 - SL350K

$116.58 - $125.60
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Engine rebuild kit with pistons for the Honda CB/CL/SL350 twins. Time to rebuild? If you're diving in and doing a rebuild, honing the cylinders, replacing engine side cover gaskets and replacing some seals this is a great kit to have on hand!

Gasket Set Includes

12391-286-306 - Gasket A - Cylinder Head Cover x1
12395-286-000 - Cylinder Head Cover C Gasket x1
12392-286-050 - Cylinder Head Side Cover Gasket x2
30372-286-320 - Point Cover Gasket x1
12261-286-030 - Cam case Gasket x1
12251-312-003 - Cylinder Head Gasket x1
14592-286-310 - Tensioner Holder Gasket x1
91302-001-020 - O-ring 30.8 Qty: 4
91304-287-000 - O-ring 69.8 x 2 Qty: 2
16229-286-000 - Carburetor Insulator Gasket x2
12191-312-000 - Cylinder Base Gasket x1
18291-286-030 - Exhaust Pipe Gasket x2
11394-286-000 - Dynamo Cover Gasket x1
11395-286-040 - Left Crankcase Cover Gasket x1
11394-286-040 - Right Crankcase Cover Gasket x1 

Oil Seal Kit Includes:

Left Cylinder Head Cover Seal
Tachometer Seal
Right Crankcase Cover Seal
Countershaft Seal - goes behind front sprocket
Gear Shift Spindle Seal
Dust Seal - Fits over the clutch lifter under the left crankcase cover
Mainshaft Seal
Gearshift Drum Seal

Installation Tips:

  • Be very careful when installing the cylinder over new rings, it's helpful to have the proper tool to keep the rings compressed as you lower the cylinder over the pistons. Try to use only plastic tipped tools to prevent from scratching aluminum surfaces.
  • The Letter stamped on the top two rings should be facing up when installing them and stagger the ring gaps according to the manual.
  • Press your seals in straight with a seal driver or a socket with a slightly smaller OD than the seal. Both surfaces must be free of dirt to create an oil tight seal.
  • All sealing surfaces for gaskets must be clean and flat to make a proper seal, sometimes non-hardening sealant is necessary.

Piston Ring Order:

Top Compression Ring (silver outer rim)
Second Ring (black outer rim)
Bottom Rings (3 pieces - Spacer in the middle - 1 thin ring on either side)

Fits Honda:

CB350K Super Sport - 1970-1973
CB350G - 1973
CL350K Scrambler - 1970-1973
SL350K0 Motosport - 1969-1970 (Does not fit 1970 K1)