2003 HD sportster - forks don't leak, bottoms out when front brakes applied
You may not have enough oil in the front forks or you may been a heavier viscosity of oil. I'm sorry but I don't have the oil capacity for your "Low Sportster". All I have is for "Hugger" models. They take 10.7oz. "wet" and 12.1 "dry". The difference between "wet" and "dry" is that if you simply drain and refill the front forks, it's call a "wet" oil change. If you disassemble and clean the forks of all oil inside, it's called a "dry" oil change. Contact the service department of your local shop and ask them how much oil goes in the front fork. To change the oil, there is usually a small screw in the trailing side of the lower fork slider down near the axle. Take these out and the oil will drain to a certain degree. Hold the brake while working the forks up and down with your weight to get all the oil that draining will get out of them. If you want all the oil out, you'll have to disassemble the fork tube. I would not do this if the seals are not leaking. Replace the screws in the sliders and then remove the top cap from one tube at the time and refill the tube with the specified amount of oil. Sometimes, the top caps can be difficult to get back in due to the pressure of the large spring in the front fork tubes. You may need a tool to compress the sping. I'm not sure on the "Low" model. I've always managed to the top caps back in without any special tool but I've never done a "Low" model bike. Harley uses what they call their "Type E" fork oil. I do not know what the viscosity of this oil is so I always use PJ-1 30 weight fork oil for most applications. Use only fork oil as any other oil may have a tendency to foam thereby negating any dampening action of the forks. If this doesn't solve your problem, you may want to check into changing the springs in the front forks. Progressive Suspension and others make kits for this.
Sep 13, 2011 |
2006 Harley Davidson XL 1200 L Sporster...