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mcdrz

CRF150 Fork oil amount???

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I installed the BBR springs in my 04 CRF150SM. I started with the service manual spec at 290cc +/- 2.5 cc of 20 wt synthetic fork oil. The one thing I can't find is how much deviation from the manual spec can I go? Can somebody tell me how many cc's I can add before getting into trouble with seals...10cc? 20cc? 50cc? etc

Will be testing soon and would like to add oil if needed and any direction would be helpful. Is there a level of addition that is beneficial? i.e. add 5cc at a time and test -or- add 10cc at a time and test, etc

BTW...I completed a search and found level in inches, but not in volume.

Many thanks

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i put BBR springs in my forks i think if your light enough you dont have to worry about the oil

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I'm installing TBR springs this weekend... how do you mesure the cc's what tool do you use?
Steal your mom's measuring cup from her kitchen. The measurement from the top of the tube is more important, both fork tubes need to be as close as possible to 136mm or 5.4 inches.

Cheers, :D

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Steal your mom's measuring cup from her kitchen. The measurement from the top of the tube is more important, both fork tubes need to be as close as possible to 136mm or 5.4 inches.

Cheers, :D

I wil have to steal my wifes measuring cup :D since I am too old to live with my parents lol.

136mm with the forks pushed in? or out? I have the shop manual but it's not clear.

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136mm with the forks pushed in? or out? I have the shop manual but it's not clear.
Sorry to flame you but it couldn't be any more clearer. Anyhow, as it states in the manual----

1-Pour the specified amount of recommended fork fluid into the fork pipe.

2-Slowly pump the fork pipe several times to stabalize the fork oil level.

3-Compress the fork leg fully and measure the oil level from the top of the fork pipe.

4-Be sure the oil level is the same in both fork pipes. 136 mm (5.4 inches)

Cheers, :D

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This is why I watch for the entertainment value pretty much anymore. You can't post a reasonable question without somebody:

1) Not answering it -or- starting crap with someone -or- being a smart azz

Not me...

Spongebob1,

A Ratio rite is a great tool that can be used for many different things. It works great for adding fork oil, engine oil, or figuring 2 stk fuel mixes.

Good luck

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