F3T rear air shock

[jcthorne]

Adding the load also contributes to the pressure rise. Compression of the air is what creates the air spring. So yes, with two up riding the pressure will rise more than with 1 up. The pressure move around a lot due to road undulations as well.

 

[rudym]

Requested the Dealer check pressure - and the response was?

You wonder how many "dealers" don't read the owners manual either, JC. Before I picked my F3-L up, I asked the salesman to set the rear for a 300lb rider. When I sat on it at pickup, I "bottomed out" (so to speak). The sales guy got his air gauge out and there was zero air in the rear, even though his setup notes to the workshop showed my 300lb request. Lucky I checked on here first or I would have had a very unimpressive 3 hour trip home. :shocked:

Pete

Dropped off my 2016 F3T in Mobile, Al. for a BUDDS update following rear top case install.
While I am there I ask my service folks to show me where the fill valve is for the shock/airbag/whatever on my F3T and they look stunned like two deer in headlights :yikes: :yikes:
I describe the basics in the owners manual and their eyes only get bigger :dontknow: :yikes::dontknow::yikes:

I ask them to figure it out pps: and show me 5/30/17 at the end of day when I pick my Spyder up.:gaah:

 

[Bensonoid]

I recently put a FOBO sensor on my rear shock on the F3T. Set it at 42 psi. Riding two up today I found the pressure zoomed up to 59 psi and set off the alarm for too high a pressure as I had set the baseline to 40 psi. Surprising the action in the air shock is working up and down to the extent that it actually heats up the air thus the pressure goes up. Will have to play with that a little to find an optimum setting.
Buckskin

I think heat from the engine plays a bigger role in the pressure increase.

 

[Buckskin]

I believe you might have something there. The alarm would go off and then in a little bit the pressure would drop a few points. I may adjust my pressure to be about 32 psi and see how it rises maybe to 40-45 psi. I did make a change on the FOBO sensor on the Schrader valve. Note below the pictures. Added a screw on T-valve and it fits fine under the passenger seat. Anyone using FOBO sensor knows that in removing/reinstalling it that you lose a little air unless you screw it on real quick. This T-valve allows you to just add air and look at your phone.
Buckskin

I think heat from the engine plays a bigger role in the pressure increase.

 

[Bensonoid]

I added a pressure gauge under the seat after having to remove the air bag to fix a leak. After that I started noticing the pressure increase when I would stop to fuel up. It sure is easier to add air with the gauge or FOBO.

 

[rudym]

for those without one

Page 51 of the 2016 F3T/Ltd operator's manual shows the suspension pressure label, under your seat, that you should follow when setting the pressure you desire for your ride, with or without passenger and cargo.

http://www.operatorsguides.brp.com/...OwnersManuals_SSA/attach/06\2016\616648EN.pdf
see paged 36 disappointing

 

[JoDot]

windshield

I read somewhere that you shouldn't use a tire air hose, JC.... so that's a furphy as long as you use common sense to avoid any over inflate?

Pete

What windshield do you have on your Spyder?

 

[Peteoz]

What windshield do you have on your Spyder?

It's a 25" F4 screen, JoDot......... p.s. I only saw this question quite by accident. You would be much better off sending a PM for a specific question like this to any forum members. It is impractical to read every comment in every thread just in case one mentions you. Besides, this is what is called a "hijack" of someone else's thread and is considered poor form, for obvious reasons

Pete

 

[Supaagent]

I have an 2016 F3T and want to check pressure but can't find the valve?

 

[Peteoz]

I have an 2016 F3T and want to check pressure but can't find the valve?

Remove your passenger seat, you can't miss it .

Pete

 

[Supaagent]

Remove your passenger seat, you can't miss it .

Pete

Found it.thanks

 

[Mario]

F3T REAR AIR SHOCK

I add a compressor with automatic control. It adjusts for one or two passengers. Works well and is available at BRP

 

[rudym]

owners manual 2016 F3T

I have an 2016 F3T and want to check pressure but can't find the valve?

http://www.operatorsguides.brp.com/...OwnersManuals_SSA/attach/06\2016\616648EN.pdf

 

[Peteoz]

I add a compressor with automatic control. It adjusts for one or two passengers. Works well and is available at BRP

I thought about this, but never found the need, Mario. If you check your pressure once a week and top up, it all works very well, without another mechanical part to possibly break down. My manual one also adjusts for one or two passengers

Pete

 

[nealperkins]

After all this discussion I thought I'd better go check my pressure on my fairly new F3L...it was zero. Oops.

 

[Peteoz]

After all this discussion I thought I'd better go check my pressure on my fairly new F3L...it was zero. Oops.

The number of times I have heard this makes me think that there are very few techs who even know the manual air spring exists on the F3, Neal. Mine was zero at pickup even after asking them to set it for a 300lb rider. Was there any air in it when you first picked it up, or is this the very first time you have checked it?

Pete

 

[No 2817]

When adding air to the shock, is it best to use a hand pump of some kind or can one just use regular air line and give it a quick shot of air til you reach that proper pressure? At 200 lbs, what is recommended pressure and if adding a passenger about how much more to add?
Buckskin

I weigh 210 and use 30 lbs. with a hand pump that includes the gauge so I know what I am putting in. Works fine when Two up.


Chris

 

[rudym]

what he said

We keep 40 psi in our F3L, I use a progressive suspension hand pump. Just to note it's not an air shock. There is a shock and a separate air bag.

yep and yup!