Preferred Tire Pressure - Page 2 - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #11 of 48 (permalink) Unread 04-06-2019, 08:28 AM
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Since you're talking PR4's, IMHO they perform better with a little higher pressures than normal. The sidewalls aren't as stiff as say Bridgestones or Dunlops. Front 40, rear 42. Turn in will be a little quicker and the bike will feel lighter on its feet... Next time you may want to try a different front, I run a Z6 mostly and it's a better tread pattern to me. I also run a 190/55 rear now.

Ray
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post #12 of 48 (permalink) Unread 04-06-2019, 08:50 AM
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For PR4 GTs, tire life will improve quite a bit if you go up two to four psi at both ends. I ran my recent set at stock pressures initially until about 4000 miles, when I noticed the wear being more than I expected.
The old-timer service manager here says run at least 40psi up front on FJRs and most other full-size bikes. So far, my experience supports that.
I also have PR4s (not GTs) on my ZRX1100 and the typical Kawasaki heavy steering effort at low speeds is greatly reduced by going +4psi at both ends. Since the tires were on the bike when I got it and I have no information about their mileage, I can't say about wear rates being affected.

Bill


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post #13 of 48 (permalink) Unread 04-06-2019, 03:11 PM
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Quote:
Originally Posted by doc View Post
Depends whether I am using full synthetic, semi synth, or dinosaur oil.
You donít use synthetic air?
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post #14 of 48 (permalink) Unread 04-06-2019, 04:28 PM
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I have too many numbers to remember as it is, so I keep it simple and same so as to be easy to recall: 40 in both front and back.
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post #15 of 48 (permalink) Unread 04-06-2019, 10:29 PM
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40/42 PR4 GT with 3,000 miles on them, so far they work great and look like they have another 6,000, will see. LOL YMMV

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post #16 of 48 (permalink) Unread 04-06-2019, 11:32 PM
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Whatever the sticker on the swingarm says.
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Cheers,

Anthony
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post #17 of 48 (permalink) Unread 04-07-2019, 12:54 AM
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Whatever the sticker on the swingarm says.

Like Doc says it really is that easy, do as it says and ride or do you lot want to talk endlessly about oil, coolant, air, fuel.

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post #18 of 48 (permalink) Unread 04-07-2019, 11:07 AM
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40F 42R on PR4GT's. Have about 6300 miles on them (which is how long the original BS 023s lasted) and looks like they may make 8K or so.

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It doesn't matter what I ride, where I ride, or how far I ride... it only matters THAT I ride...every day. "Ferret"
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post #19 of 48 (permalink) Unread 04-07-2019, 11:20 AM
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40f/41-2r for me too. And filled with that auto-balancing full synthetic olive oil.

Ridden wet. Put up hard.

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post #20 of 48 (permalink) Unread 04-07-2019, 11:29 AM
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Quote:
Originally Posted by doc View Post
Whatever the sticker on the swingarm says.
Well....... that would only apply to the OEM tires that came with the bike. 36 psi front is too low, IMHO.
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Ray
Keep yer stick on the ice....
2014 FJR1300A - Root Beer, 2008 WR450F, 2006 FJR Project
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