Jane Hacker Wiki - Recent changes [en]

CB650SC/New Owner Suggestions

WikiSysop — Mon, 24 Aug 2026 19:23:37 GMT

Must replace

← Older revision		Revision as of 19:23, 24 August 2026
(One intermediate revision by the same user not shown)
Line 7:		Line 7:
	Avoid low head/cam/tappet lubrication/<b>valvetrain tick</b>:		Avoid low head/cam/tappet lubrication/<b>valvetrain tick</b>:
	* Valve-train oil pipe x10(x2+x8)		* Valve-train oil pipe x10(x2+x8)
			* [[CB650SC/Parts#Head_oil_passage_O-rings]]
			* [[CB650SC/Parts#Head_oil_passage_O-rings_(closest_nominal_match)]]

	Lubrication:		Lubrication:

CB650SC/Specifications

WikiSysop — Fri, 21 Aug 2026 14:51:46 GMT

Common Threads and Sizes

@@ Line 51: / Line 51: @@
 <ref>1985 Honda CB 650 SC Specs on Ultimate Specs https://www.ultimatespecs.com/motorcycles-specs/honda/honda-cb-650-sc-1985</ref>
 </div>
 ==Common Threads and Sizes==

CB650SC/Carbs

WikiSysop — Tue, 18 Aug 2026 18:35:17 GMT

Carb Parts

← Older revision		Revision as of 18:35, 18 August 2026
(One intermediate revision by the same user not shown)
Line 82:		Line 82:

	{\| class="wikitable"		{\| class="wikitable"
	!Part/Jet \|\| Size \|\| OEM P/N \|\| Keyster P/N \|\| Series \|\| Length \|\| Diameter (thread) \|\| Diameter (head)		!Part/Jet \|\| Size \|\| OEM P/N \|\| EBC P/N \|\| Keyster P/N \|\| Series \|\| Length \|\| Diameter (thread) \|\| Diameter (head)
	\|-		\|-
	!Main		!Main
	\|#115 \|\| 99101-393-1150 -> </br> 99101-GHB-1150 -> </br> 99101-MAZ-1150		\|#115 \|\| 99101-393-1150 -> </br> 99101-GHB-1150 -> </br> 99101-MAZ-1150
	\| KHM-110115 \|\| 99101-393 or KR28 \|\| 8mm \|\| 4.9mm \|\| 6mm		\| KJ115 (KJ115-4 4-pk) \|\| KHM-110115 \|\| 99101-393 or KR28 \|\| 8mm \|\| 4.9mm \|\| 6mm
	\|-		\|-
	!Slow		!Slow
	\|#35 \|\| 99103-MA4-0350 -> </br> 99103-GY6-0350		\|#35 \|\| 99103-MA4-0350 -> </br> 99103-GY6-0350
	\| KHS-29C035\|\| <s>N424-21(N424/21) or K26</s> N424-26(N424/26) \|\| <s>28mm</s> 23.5mm \|\| 5.9mm \|\| 4.9mm		\| \|\| KHS-29C035\|\| <s>N424-21(N424/21) or K26</s> N424-26(N424/26) \|\| <s>28mm</s> 23.5mm \|\| 5.9mm \|\| 4.9mm
	\|-		\|-
	!Needle Holder		!Needle Holder
Line 99:		Line 99:
	\|-		\|-
	!Needle Set</br>(Europe)		!Needle Set</br>(Europe)
	\| 79P (#D476) \|\| 16012-ME5-611 \|\| KHD-0476Z		\| 79P (#D476) \|\| 16012-ME5-611 \|\| \|\| KHD-0476Z
	\|-		\|-
	!Needle Set</br>(CB700SC/700S)		!Needle Set</br>(CB700SC/700S)
Line 108:		Line 108:
	\|-		\|-
	!Idle Screw Set</br>(Europe)		!Idle Screw Set</br>(Europe)
	\| \|\| 16016-MA6-003 \|\| KHSS-138		\| \|\| 16016-MA6-003 \|\| \|\| KHSS-138
	\|-		\|-
	!Float valve		!Float valve
	\| \|\| 16165-413-751 \|\| KVN-16N00		\| \|\| 16165-413-751 \|\| \|\| KVN-16N00
	\|-		\|-
	!Needle Shims		!Needle Shims
	\| \|\| \|\| \|\| \|\| ID: 3.2mm \|\| OD: 7mm \|\| thickness: 0.5mm		\| \|\| \|\| \|\| \|\| \|\| ID: 3.2mm \|\| OD: 7mm \|\| thickness: 0.5mm
	\|}		\|}

Line 166:		Line 166:
	\|experimenting with different engine, air intake and exhaust system		\|experimenting with different engine, air intake and exhaust system
	\|}		\|}

			==Carb Products==
			* https://paceadventureworks.com/products/cb650sc-nighthawk-intake-ducts-1983-1985
			* https://murrayscarbs.com/product/honda-nighthawk-650-cb650sc-carburetor-kit/

CB650SC/New Owner Suggestions

WikiSysop — Thu, 30 Jul 2026 18:11:42 GMT

Engine

@@ Line 1: / Line 1: @@
 ==Engine==
-===Should replace===
+===O-rings===
-====O-rings====
+====Must replace====
 Avoid fuel leakage:
 * Carb "Fuel-Tee" x2
 * Carb bowl seal x4
 * Carb fuel tubes & "Vent-Tees" x8(x2+x2+x2+2)
@@ Line 9: / Line 18: @@
 Avoid Air leakage(leads to lean):
 * Carb-to-insulator-to-head x8(x2+x2+x2+2)
 Avoid low oil pressure/dirty oil contamination?:
 * Oil filter tube x3?
-====Hydraulic Tappets====
+====Must clean/rebuild====
 * 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
@@ Line 38: / Line 30: @@
 * bleed under engine oil until primed (pressing on the tappet without the "bleeder pin" inserted should feel like it is basically completely solid
 * Keep upright and install with the tappet lower hole toward the centre (toward spark-plugs) squirter hole
 ==Hydraulic control systems==