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CRF450 Exhaust on F4i

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Old 12-05-2008, 06:49 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Got a new job working nights... I go to bed at like 6-7am and sleep till like 2. I ******* love it
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Old 12-05-2008, 06:52 PM
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Re: CRF450 Exhaust on F4i
subscribed! lets see how it fits (what a good line lol)
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Old 12-05-2008, 06:53 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Nope
was worth a shot buddy get ur forks done yet?
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Old 12-05-2008, 06:53 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Got a new job working nights... I go to bed at like 6-7am and sleep till like 2. I ******* love it
Sounds like the glory hole job is working out for you
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Old 12-05-2008, 06:55 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by faceless
was worth a shot buddy get ur forks done yet?
I did the springs and fluid but the rebound is still horrible. They're stiffer though. And I'm getting a weird chatter from the pads now

Of course I'm still rolling stoppies on them like nothing changed
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Old 12-05-2008, 06:57 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
I did the springs and fluid but the rebound is still horrible. They're stiffer though. And I'm getting a weird chatter from the pads now

Of course I'm still rolling stoppies on them like nothing changed

did u check all the settings?? and weird chatter how?? do you have new pads??
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Old 12-05-2008, 06:59 PM
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Re: CRF450 Exhaust on F4i
Settings are right but with the stronger springs the rebound valves can't keep up.

The chatter is coming from my front left pad and it's grabbing the rotor weird. It still has meat left but it's real old. I got new pads on the way
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Old 12-05-2008, 07:02 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Settings are right but with the stronger springs the rebound valves can't keep up.

The chatter is coming from my front left pad and it's grabbing the rotor weird. It still has meat left but it's real old. I got new pads on the way

hate to say it but may have to have it Revalved. and new pads i think may fix it. im not there looking at it or riding it so hard to tell really. but put the pads on and look to revalving it.
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Old 12-05-2008, 07:02 PM
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Re: CRF450 Exhaust on F4i
Yea, it needs to be revalved for sure. I may just get a CBR1k front end and call it a day
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Old 12-05-2008, 08:10 PM
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Re: CRF450 Exhaust on F4i
screw it put a 50 exhaust on it lol.
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Old 12-05-2008, 09:38 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by Suicidl
Sounds like the glory hole job is working out for you
. I miss working nights. it doesn't start up again for me until after the first of the year.
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Old 12-05-2008, 09:40 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by JEFF4EZ
. I miss working nights. it doesn't start up again for me until after the first of the year.
you work at a glory hole also
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Old 12-05-2008, 10:14 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
I did the springs and fluid but the rebound is still horrible. They're stiffer though. And I'm getting a weird chatter from the pads now

Of course I'm still rolling stoppies on them like nothing changed
I got some serious pogo sticks on my f4i... Traxxion Dynamics here did them. New top to bottom, seals, springs, oil, revalved... ALMOST as good as the inverted forks
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Old 12-05-2008, 11:27 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Yea, it needs to be revalved for sure. I may just get a CBR1k front end and call it a day

actually from what i have heard the 600rr front ends are out this world on the F4i's. id give that a shot. in my opinion. but hey go for it.
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Old 12-06-2008, 05:52 AM
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Re: CRF450 Exhaust on F4i
Originally Posted by ROWDY
I got some serious pogo sticks on my f4i... Traxxion Dynamics here did them. New top to bottom, seals, springs, oil, revalved... ALMOST as good as the inverted forks
What did they charge?
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Old 12-06-2008, 05:53 AM
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Re: CRF450 Exhaust on F4i
No 600rr front end for me
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Old 12-06-2008, 01:30 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by Suicidl
you work at a glory hole also
That's not what I was saying at all but I see how you could get that from that statement. I do refrideration at nights normally but until after the first of the year I have to work days.
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Old 12-06-2008, 02:30 PM
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Re: CRF450 Exhaust on F4i
I got a white brothers raptor 660 muffler on my f4i

it was almost a direct bolt on to my old 2 bro's mid pipe, the white brothers pipe was just slightly too big

I welded 2 plates in it with 1/2" holes drilled in the center with the plates about 3 inches apart.. I also stuffed it as full as I could with exhaust packing


For a shorty aftermarket pipe its pretty damn quiet.. On idle its very quiet.. But it still sounds good!

Way quieter then my two brothers pipe I used to have





Oh ya, didn't have to chop it down at all, Still clears the ground with my shorty 12 bar
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Old 12-06-2008, 03:16 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by nags
Yea, it needs to be revalved for sure. I may just get a CBR1k front end and call it a day
fyi its wayyy shorter than the f4i front end...u will loose some front end geometry....and its a bitch to mount up w.clip ons and uppper.....also tire hits radiator during hard breakin/stoppies w. clips underneath

but u prolly already kno this
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Old 12-06-2008, 03:18 PM
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Re: CRF450 Exhaust on F4i
Originally Posted by f4ibry
fyi its wayyy shorter than the f4i front end...u will loose some front end geometry....and its a bitch to mount up w.clip ons and uppper.....also tire hits radiator during hard breakin/stoppies w. clips underneath

but u prolly already kno this
Yea I know.. I'd rather keep the F4i **** and have it redone, but I just don't know how much money I want to spend on F4i forks
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