CB650SC/New Owner Suggestions: Difference between revisions

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Created page with "==Should replace== ===O-rings=== Avoid fuel leakage: * Carb "Tee" x2 * Carb bowl x1 * Carb flow tubes & vent "Tees" x8 Avoid Air leakage(leads to lean): * Carb-head x8 Avoid low head/cam/tappet lubrication: * Valve-train oil pipe x2 & x8 Avoid low oil pressure/dirty oil contamination?: * Oil filter tube x4? ===Must clean/rebuild=== ==Carburetors== * Check and replace with same jets & emulsion tube or reuse (order individually by size, no kits) * Reuse needle (do not..."
 
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Avoid fuel leakage:
Avoid fuel leakage:
* Carb "Tee" x2
* Carb "Tee" x2
* Carb bowl x1
* Carb bowl x4
* Carb flow tubes & vent "Tees" x8
* Carb flow tubes & vent "Tees" x8(x4+x4)


Avoid Air leakage(leads to lean):
Avoid Air leakage(leads to lean):
Line 10: Line 10:


Avoid low head/cam/tappet lubrication:
Avoid low head/cam/tappet lubrication:
* Valve-train oil pipe x2 & x8
* Valve-train oil pipe x10(x2+x8)


Avoid low oil pressure/dirty oil contamination?:
Avoid low oil pressure/dirty oil contamination?:
* Oil filter tube x4?
* Oil filter tube x3?
* Oil filter cover x1 (sometimes comes with new filter, can be reused carefully)


===Must clean/rebuild===
===Must clean/rebuild===

Revision as of 16:57, 22 June 2026

Should replace

O-rings

Avoid fuel leakage:

  • Carb "Tee" x2
  • Carb bowl x4
  • Carb flow tubes & vent "Tees" x8(x4+x4)

Avoid Air leakage(leads to lean):

  • Carb-head x8

Avoid low head/cam/tappet lubrication:

  • Valve-train oil pipe x10(x2+x8)

Avoid low oil pressure/dirty oil contamination?:

  • Oil filter tube x3?
  • Oil filter cover x1 (sometimes comes with new filter, can be reused carefully)

Must clean/rebuild

Carburetors

  • Check and replace with same jets & emulsion tube or reuse (order individually by size, no kits)
  • Reuse needle (do not trust "kits")

Hydraulic Tappets

  • Follow manual for removal
  • Use allen key (my recommendation), smooth bore side of 1/16 drill bit (Clymer manual), or special tool Honda 07973-ME9-0000 to bleed out oil
  • again bleed upright under kerosene (mineral spirits or maybe even diesel fuel in a pinch?) to clean
  • bleed out the solvent from the last step
  • bleed under engine oil until primed (pushing on the taper without the "bleeder pin" should feel like it is basically completely solid
  • keep upright and install with the tappet lower hole toward the (toward spark-plugs) squirter?

Hydraulic control systems

Brakes

Clutch