SETTING OIL LEVEL ON KYB AND WP UPSIDE-DOWN FORKS (when oil level is given in mm)
On open-chamber upside-down forks there is a gap between the inner and outer fork tubes (between the fork bushings).
Two types of forks:
1. Has Equalizing Hole Showa forks have an Equalizing Hole.
2. No Equalizing Hole On most KYB and WP forks there is no Equalizing Hole in the inner (chrome) fork tube. Without this hole, the problem is not knowing how much fork oil is actually in this area.
This must be considered when oil level is given as a distance (mm) instead of a volume (cc).
To set the oil level correctly using our method you must remove all oil in this area.
Note: We developed this method in 1989. This problem was not addressed in any Service Manual until the year 2000. Kawasaki started using a method where they completely filled this area instead of emptying it (go figure). This means their method and our method will be different by about 40mm - oops! All our suggested oil levels use our method of evacuating this area.
BLEED THE CARTRIDGE AND SET THE OIL LEVEL
A28- Invert the fork and pour oil into the top of the fork. Stroke the damping rod to bleed the cartridge. Continue to stroke until all bubbles in the cartridge are gone and it strokes smoothly and evenly.
You can speed up the process of filling the cartridge by placing your hand over the open end of the upper fork tube while the fork is extended and pressing downward on the fork. The increase in pressure will quickly force the oil into the lower cartridge.
A29- Set the Oil Level Tool (TFOL 02) to the correct level according to the DVS.
A30- Extend the outer fork tube all the way until it stops. This will remove oil from this area and dump it into the main chamber.
A31- Bottom the Outer Fork Tube as well as the Damping Rod. To set the oil level suck out the excess oil with the Oil Level Tool.
Repeat by extending the Outer Tube all the way, collapsing it and sucking out the excess.
We Respect Your Privacy
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.