What's wrong with my forks? - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 17 (permalink) Old 06-04-2014, 04:01 PM Thread Starter
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What's wrong with my forks?


My right...... I don't know what it's called, the thing in the middle. It's sticking out higher on my left fork. I didn't notice it until today but my bike has been handling weird. Is there any way to fix it?

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post #2 of 17 (permalink) Old 06-04-2014, 04:14 PM Thread Starter
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Sorry if it's a stupid question,but I'm not a suspension guy

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post #3 of 17 (permalink) Old 06-04-2014, 09:09 PM
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You mean the small slotted adjuster at the top, or the larger component with the retainer clip around it?

The slotted adjuster is for rebound and should match the other fork in number of lines out from full in.

The larger component surrounding the adjuster is part of the fork cap/adjust case portion of the fork cap.

Your forks are from an RC51 SP1, which use different fork caps than the SP2.
On the SP1 forks, you can count the number of lines visible on the preload adjuster as it travels up or down during adjustment.

The SP2 forks have an internal preload adjuster with an adjuster nut on the fork cap, and one has to count the number of turns to set preload as the preload adjuster stays fixed in one place.

The important take away is, you need to match the numbers of lines for both forks for preload adjustment.
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post #4 of 17 (permalink) Old 06-04-2014, 10:00 PM Thread Starter
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Sub.....see in the pic? Look on top of my preload adjusters. The rebound adjuster is further out on my left fork than my right one.

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post #5 of 17 (permalink) Old 06-05-2014, 09:22 AM
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Have you pulled it off to see how it seats?

John, 2000 RC51 #000100

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post #6 of 17 (permalink) Old 06-05-2014, 09:56 AM Thread Starter
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Neg. I guess that would be a start huh?

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post #7 of 17 (permalink) Old 06-05-2014, 11:06 AM
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The rebound adjuster is the slotted brass piece in the middle.
If it extends farther than the other, then the prior owner or someone else may have mis-adjusted them so they don't match.
Now your have one fork rebounding at a different rate than the other.

The base rebound adjustment (according to the owners manual) is 1 turn out from full in, to where the punch mark on the rebound adjusters align with the punch mark on the fork.
At least in this way, both rebound adjusters will match, and you can then change them equally to whatever suits you.
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post #8 of 17 (permalink) Old 06-05-2014, 12:50 PM Thread Starter
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Damn....that makes sense. I will take a look at it when I get home. Thanks. If I can't sort it, my mechanic n I will go in and see what's up

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post #9 of 17 (permalink) Old 06-05-2014, 05:00 PM Thread Starter
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Does it make more sense now? Look at the middle thing in my forks. The actuator or something. I dunno, my left one is higher

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post #10 of 17 (permalink) Old 06-05-2014, 05:02 PM Thread Starter
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Look

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