Monday, May 10, 2004
Front end back together
In an attempt to reduce the fork clunking, NP removed 0.004" of play from the damper piston assembly.
These parts must move on each other but it seemed that in this case they actually wobbled.
On reassembly it became apparent that the noisy fork was far better, but the quieter one still had its noise. After all this work I've been forced to admit that these forks aren't silent due to the loose parts within - such as the pump, the top-out spring and the little valve assembly.
Tacho drive
I had hoped to remove the tacho drive from the camshaft and fit an old-style flat cover. My thinking was that a dirt bike doesn't really need a tacho and that the cable was one more thing to get hooked onto a branch. Well it can't be done easily as the 'black' ignition pick up needs the space. Oh well. The domed cover looks better for having the relics of paint removed.
In an attempt to reduce the fork clunking, NP removed 0.004" of play from the damper piston assembly.
These parts must move on each other but it seemed that in this case they actually wobbled.
On reassembly it became apparent that the noisy fork was far better, but the quieter one still had its noise. After all this work I've been forced to admit that these forks aren't silent due to the loose parts within - such as the pump, the top-out spring and the little valve assembly.
| Fork oil | 230ml of 5wt | NLM suggest 5wt for off-road use and 10wt for the road. The higher viscosity oil reduces noise too, by damping the rattle of the parts. If you overfill the forks the noise will be greater. |
Tacho drive
I had hoped to remove the tacho drive from the camshaft and fit an old-style flat cover. My thinking was that a dirt bike doesn't really need a tacho and that the cable was one more thing to get hooked onto a branch. Well it can't be done easily as the 'black' ignition pick up needs the space. Oh well. The domed cover looks better for having the relics of paint removed.
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