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Fletch 2

06 YZ450F Fork questions

9 posts in this topic

Hi,

i need to know what size fork cap wrench to get for my YZ450, i cant find it in the manual anywhere, also i need a guide as to what effects different wieght oils will have so i have a better idea of what to get wheather it be light, medium or heavy. Any help would be great.

Cheers.

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outer fork cap is 49mm, inner wrench is a 36mm octagon.

you have to do a search here for different weight fork oils, but I think 99% would recommend a 5wt fluid, at least in the inner chamber

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Hi,

i need to know what size fork cap wrench to get for my YZ450, i cant find it in the manual anywhere, also i need a guide as to what effects different wieght oils will have so i have a better idea of what to get wheather it be light, medium or heavy. Any help would be great.

Cheers.

A suspension guy could explain this much better than I but the twin chamber forks are not designed to have their action manipulated by different 'weights' of oil.

I whole-heartedly recommend using the Smart Performance 215.VM2.K5 'Taco Sauce' in your forks. Do a search in this forum for it or contact DaveJ.

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A suspension guy could explain this much better than I but the twin chamber forks are not designed to have their action manipulated by different 'weights' of oil.

I whole-heartedly recommend using the Smart Performance 215.VM2.K5 'Taco Sauce' in your forks. Do a search in this forum for it or contact DaveJ.

I thought SPI's oil was different for different chambers??? They have SPI-3, SPI-4, and SPI-5, each for different areas and usage. Not sure if the numbers relate to oil weight or not.

BTW... i am loving my SPI oil and valving!!!

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Kayaba uses 2.5 in the innerchamber. Showa is 5wt. I have been told that you run the lighter weight in the innerchamber so when the forks fade from heat you don't notice it as much (they are comparable to a shock).I have tried 2.5,3,5,and 10wt in the outter chamber and really couldn't notice a differance.

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ok no worries, my manual recommends using S1 suspension oil, not sure if that has any reference to oil weight. I'll have a dig through this forum anyway and see what i can find. thanks.

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ok i will re write my answer, i would use the ss01 5 wt in forks :thumbsup:

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