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M4: Air Filter Cleaning
Tools recommended for air filter maintenance:
• Flat head screwdriver
• Air filter oil
• 5mm hex key
• Foam filter oil
The Cobra is equipped with a special designed sock filter. It is very important to
keep it clean and properly oiled with high quality water-resistant foam filter oil.
It’s very important to oil your filter consistently each time because varied amounts
of oil will change your carburetor jetting.
Make sure you change your filter after each moto. We recommend carrying 3 or
more filters in your toolbox.
1 for practice
1 for the each moto
In our testing when filters are properly oiled, no water, dirt or mud can penetrate
through the yellow or red foam to the carburetor inlet. It is important that the filter
does not touch any of the frame components in a rainy, muddy situation. We
offer two different filters. One filter for the use in sand (part # RCMU0101), and
the regular filter for regular use (part # RCMU0206).
When washing your bike cover the carburetor/filter with a suitable shield capable
of keeping water from entering the engine. Cobra has a rubber clamp-on plug for
the carburetor referred to as a carburetor condom (part # RCMU0104).
M5: Fork Oil Replacement
Tools required
• Two 19 mm wrenches or sockets
• 4 & 5 mm hex key (Allen wrench)
• 1 1/8” wrench or socket
• 5 wt fork oil
Disassembly procedure
1. Remove the front wheel (19 mm wrench).
2. Remove the brake caliber from the fork leg (4 mm hex key).
3. Loosen the fork caps (1 1/8” socket).
4. Remove the fork legs from the triple clamps (5 mm hex key).
5. One leg at a time
a. Remove the fork cap from the leg.
b. Separate the fork cap from the damper rod.
c. Pull out the fork spring.
d. Place upside down over a suitable pan, tray, or container.