with the hi
h needle
H
.
2. Usin
the tachomete
a
ain: richen the hi
h needle
H
until
the en
ine runs 100-200 RPM less than the maximum RPM.
Now
ou should richen sli
htl
on the hi
h needle
H
.
Keep the en
ine run at idle for 60 seconds. Insure that the idle
RPM to be constant. If the low needle
L
is too rich,it ma
happen that idle RPM drops until the en
ine stops;. Lean the
low needle
L
until a constant idle RPM is achieved.
Check the transition with a quick throttle advance. It should
sound like it is makin
quick stead
power.
Care:
You
carburetor screen will need to be cleaned with clean
asoline and blow off with compressed ai
after ever
fli
ht.
Check the choke and throttle plates fo
ti
htness.
rou
e
oot
n
Problem1. The en
ine is flooded.
Solution:
Remove the spark plu
; turn the en
ine to a position where the
fuel runs out and clean it.
Check the connections of spark plu
, screws, restart the en
ine,
if it failed to start a
ain, please send it back to
fter-sale service
center fo
repair.
Problem2. The en
ine starts after bein
choked but then stops
soon after.
Solution:
The low needle on the carbureto
is probabl
too lean.
d
ust the Low End needle until
ou achieve a smooth idle and
a reliable transition to hi
h throttle. Generall
if the motor
stutters o
cou
hs in the mid ran
eo
when the throttle is
advanced, the low end needle is too rich and possibl
even the
hi
h end needle.
Problem3. The en
ine runs rou
h and is vibratin
stron
l
.
Solution:
Balance the propeller. Check the i
nition timin
. Check
ou
plumbin
for air/fuel leaks
Check
our spark plu
for carbon and check the spark plu
ap.
Check the en
ine mount to be sure it is ri
id. Check to make
sure the en
ine is mounted on a level surface so that crankcase