How often should motorcycle fork oil be changed?
every 10,000 miles
Can I use engine oil instead of fork oil?
A straight weight (SAE 30?) might work OK for a short while, but it’s not quite right. Motor oil is meant to lube and forks work more like hydraulics.
What can I use instead of fork oil?
ATF is a good substitute for fork oil due to its anti-foaming properties. Many motorcycles used to specify ATF for the forks as stock. ATF is roughly equivalent to 7.5 weight fork oil, so will be a bit on the light side for any of the XJ series, but you might find it to be acceptable.
What is the difference between fork oil and motor oil?
As for the differences between motor oil and fork oil, the way they measure the “weight” is completely different, and fork oil has additives to keep it from “foaming” , plus other additives directly needed in the fork enviroment.
What does adding more fork oil do?
Adding oil to your forks reduces the air volume. Since air is compressible, a smaller airspace is harder to compress than a larger airspace, which results in a stiffer fork.
Why do forks have oil?
They also move up and down to soak up bumps in the road surface like a car shock absorber does. The spring allows the fork leg to compress over a bump and then “spring back “. This makes the ride better and improves traction. Each of the front fork tubes for most motorcycles contain a spring and oil.
What happens if fork seals leak?
Basically, something as simple as a leaky fork seal can ruin a ride or race day. Fork seals leak from normal wear and tear, age, and debris getting into the seals. Imperfections and nicks in the chrome can also make your fork seals leak.
Can you ride with blown fork seals?
Yes you can ride with blown seals. Is it the best? No, it can put extra wear on the fork internals.
How much does it cost to fix a leaking fork seal?
Approximate Total Cost: $50 – $200 + 3-6 Hours of work If your relatively handy and feel up to the task of replacing your own fork seals than this is what you would be looking to spend in both time and parts cost.
How hard is it to change fork seals?
Replacing your fork seals is an easy enough job if you know a few tricks. The first step to any DIY job is to do a little research and get all the parts you’ll need for the job. You’ll at least need the new seals and fork oil but should also consider wipers, bushings and any seals or o-rings for the caps.