Honda TRX70 Fourtrax 1986 User Manual

CYLINDER HEAD /V ALVES
Apply a thin c08ting of Prussia" Blue to the valve seat.
Without rot8ting the v81ve, insert it through the valve guide
and onto the seat 10 make 8 clear pattern .
NOTE
The location of the valve seat in relation to the valve face is
very important for good sealing.
If the contact area is too high on the valve, the seat must be
lowered using 8 32° flat cutter.
If the contact area is toa l low on the \/alve, the seat must be
raised using a 60° inner cutter .
Refinish
the s8at to specifications using a 45° seat cuner .
After cuning the seat, apply lapping compound to the valve
face and lap the valve using light pressure.
NOTE
Take care not to allow the compound to enter between the
valve stem and guide.
After lapping. wash all residual compound off the cylinder
head and valve.
CYLINDER HEAD ASSEMBLY
(11 (2) AETAINEA
OUTEA
SPA ING
(1) CONTACT TOO HIGH
~ :J;ATW ( OTH
(3) CONTACT TOO lOW
(21
~ =1SEATW(OTH
(6)
SEAL
(9) INN'./
SPAING
VALVE GUIDE
(8) (NNER SPFIING
SEAT
Install new valve stem seals into stem seal caps .
lubricate each vslve stem with molybdenum disulfide grease
and
insert the valve into the valve guide.
NOTE
Install1he new valve stem seals when assembl ing.
To 8void damage to the stem seal, turn the valve sl ow ly
when inserting .
I nstall the v81ve springs and retainers.
6- 10
(4) VALVE
•

Honda TRX70 Fourtrax 1986 Specifications

General

Brand	Honda
Model	TRX70 Fourtrax 1986
Category	Offroad Vehicle
Language	English