Fuel System - Honda CR125R 2006 Owner's Manual

Fuel System

Refer to Safety Precautions on page 19.
Fuel Recommendation
Type
Pump Octane Number 91 (or higher)
We recommend that you use unleaded fuel
because it produces fewer engine deposits and
extends the life of exhaust system components.
Your engine is designed to use any gasoline that
has a pump octane number of 91 or higher.
Gasoline pumps at service stations normally
display the pump octane number. For
information on the use of oxygenated fuels, see
page 128.
Use of lower octane gasoline can cause persistent
"pinging" or "spark knock" (a louder rapping
noise) which, if severe, can lead to engine
damage. (Light pinging experienced while
operating under a heavy load, such as climbing a
hill, is no cause for concern.)
If pinging or spark knock occurs at a steady
engine speed under normal load, change brands
of gasoline. If pinging or spark knock persists,
consult your Honda dealer.
Never use stale or contaminated gasoline. Avoid
getting dirt, dust, or water in the fuel tank.
34
Servicing Your Honda
Premix gasoline and oil in a ratio of 32:1.
Prepare the fuel mixture in a clean container, and
shake until thoroughly mixed before filling the
fuel tank.
USE PRO HONDA HP2 2-STROKE OIL
unleaded
(32:1) OR AN EQUIVALENT.
NOTICE
Too much oil will cause excessive smoking and
spark plug fouling. Too little oil will cause
engine damage or premature wear.
Vegetable oils separate from gasoline more easily
than mineral oils, especially in cold weather. It is
advisable to use mineral oil when ambient
temperatures below 32°F (0°C) are expected.
If the gasoline-oil mixture is left standing in a
container for a long period of time, lubricity will
deteriorate. Use the mixture within 24 hours-or
the time period recommended by the oil
manufacturer.
Once an oil container is opened, the oil must be
used within one month, since oxidation may
occur.
32:1 FUEL OIL MIXING CHART
Fuel
32
Gallons Liters Ounces
0.5 1.89 2.0
1.0 3.79 4.0
1.5 5.68 6.0
2.0 7.57 8.0
2.5 9.46 10.0
3.0 11.36 12.0
3.5 13.24 14.0
4.0 15.14 16.0
4.5 17.03 18.0
5.0 18.92 20.0
5.5 20.81 22.0
6.0 22.71 24.0
Oil
1
cm 3
59
118
177
237
296
355
414
473
532
591
651
710