8-10
FUEL SYSTEM HRN216
CHOKE CONTROL ASSEMBLY
Thermowax Removal
1. Turn the fuel valve OFF and drain the fuel from the
carburetor float chamber into an approved container.
2. Remove the air cleaner cover and air cleaner element.
3. Remove the following parts in the order shown below.
1) Air cleaner case
2) Air cleaner gasket
3) Carburetor
4) Carburetor gasket
5) Auto choke control assembly
6) Insulator gasket
4. Remove the existing thermowax from the cylinder
barrel.
a. Using small pliers or wire cutters, pull the center pin out of
the thermowax (a). If you cannot grab the center pin, apply
heat to the thermowax using a heat gun until the center pin
extends.
b. Screw a No. 6 sheet metal or drywall screw into the
thermowax body, and then carefully pry the thermowax out
(b). Use the side of the cylinder as a prying surface, as
shown. Do not pry against the intake port gasket sealing
surface.
Use a small scraper, brake cleaner, and compressed air to
remove the remaining sealant from the cavity (c). Remove as
much sealant as possible, especially from the back of the
cavity.
Thermowax Installation
1. Measure the overall length of the new thermowax before
installing. The length must be 21.5 - 23.0 mm. Do not install
the thermowax if the length is outside this range.
2. Apply a small amount of Hondabond HT (P/N 08718-0004) to
the lower one-third of the new thermowax. Do not apply too
much.
Length: 21.5 ~ 23.0 mm
Apply Hondabond HT to the sides
and back of the new thermowax.
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