Honda C65 - Cylinder Head Combustion Chamber View; Cylinder Head Disassembly

=
.: ::::e se-.-s::·e· ·::o
_ ::. ::e-e· :::::-::: ,- · - e= ·::·e cy,
__ _ _ ........, _ __ ::. ::;_ s- c•eo. (Fi g. 3-17 )
een the piston and
_--e· co~press part of the fuel
=-::. .:= · -e combu st i on stroke to
-- -- · ·e main fuel mixture. As
-_ e .: ::· . ert ed to wa rd the sp ar k
:: .:::.::.;:::-· ::: - is ac c elera ted, al low ing
= .e 1 air rat io or the slowe r
burn smoothly, further,
= =- ::.e-::-. for kn ocking . (Fig. 3-18)
'= • .:e o; ·he O.H.C. have decreased
: ::e·::- · -g lo ad of the val ve mechani sm,
__ -ee:: :::"ld goo d s tabilit y at high output
ossible. In addi t ion, the in-
effici ency has been achieved due
ocoiion of the valves and the posi-
··e spar plug at the ce nter of the
A
be t ter fl ow of the cooling
--= ·:::o of the cylinde r head is a fforded
- :::::~ j unctio n wi th the aluminum h ead has
·-~ coolin g efficiency to a considerable
'
-ss e mb ly
:-:::- • e oil
;,..-::,e the flywhee l and s tat o r as se mbli es.
;e-:J. e he 6mm h ex and cap nuts ho lding the
:: - ::er he ad cover and th en remove the cove r.
; ::·:::·e. 'he cranks haft so that the piston is at top
::.e-::::: center, by alig ning th e woo_P..r u f.l. , ,- key on
··e ::·on ksh aft and the "0" mark o~ · th~ ' sprocket
- -e with the cy linder axis and '• t·li:en··" remove
·-e ·'lry 5mm hex bo lts. (Fig. 3- 19)
--e ri ght an d ) eft cy l inder head side cove r can
-~ separ ated by rem ov ing the 6mm hex bo lt.
- ig . 3- 20)
:: •e~ o ve the cy l inder h ead .
I
I
DE R HEAD
15
Figu re 3- 17. Cyiinder head combustion cham ber
t
Figure 3- 18. Squish are ar
Figur e 3- 19. Removing cam s procke ·
F igur ~ 3- 20. Removing R & L cy lind er head cover