Lowering fork on Z1000J3

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23 May 2014 03:25 #633597 by Mk2Rookie
Lowering fork on Z1000J3 was created by Mk2Rookie
Hi! i recently installed Progressiv Suspension springs in my forks and left out the spacer just to see how low it would get, the height is now about right but the fork is waaay to soft.. So i guess that's what the spacer is for! But i will like to lower it around 50mm (2") internal and i know this has been covered several times on this forum on other bikes but it might my english or just that i have not found anything about the J/R forks. I've learned that some put a spacer in the damping rod which will keep the natural position of the tubes lover in the forks.. But should this be done with the recommended spacer in top of the tubes or should i only put spacers on the rods ?

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Simon
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23 May 2014 08:53 #633641 by slayer61
Replied by slayer61 on topic Lowering fork on Z1000J3
This conversion is done regularly on flattrack bikes. Remove the length of spring from the top and add it back in under the damper rod.

Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD

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23 May 2014 11:13 #633652 by Mk2Rookie
Replied by Mk2Rookie on topic Lowering fork on Z1000J3
So what i cut from the spring i put under the rod ? Or do i cut a spacer in the same lenght as the part i cut from the spring ?

Simon

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23 May 2014 11:42 #633660 by slayer61
Replied by slayer61 on topic Lowering fork on Z1000J3

slayer61 wrote: This conversion is done regularly on flattrack bikes. Remove the length of spring from the top and add it back in under the damper rod.


Maybe this will help
The short section of spring on the bottom is a "top-out" spring. You have to have SOMETHING there that will absorb top out type of action

Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD

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23 May 2014 15:51 - 23 May 2014 15:57 #633684 by Mk2Rookie
Replied by Mk2Rookie on topic Lowering fork on Z1000J3
Thank you so much! It all makes sense to me now :) A spacer on top of the rebound spring will lower the forks and pre-load the springs but it also blocks off the hole in the rod so it has to be a spring? Am i correct ?
Last edit: 23 May 2014 15:57 by Mk2Rookie.

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