rm 125 fmf pipe

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#1
My brother in law will probably buy a FMF pipe for his rm 125, 1998. He already had the silencer. Did it will give a huge hp after jetting or it is not worth the price? :think:
 
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#3
Got one on our 98. Noticable gains in the midrange.........nice, but not huge.
 
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#4
ok thanks, should I check for another pipe brand or what I can change to get some good gain? gearing? weight loss?
 
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#5
The ONLY way you are going to get hp gains is to bore the cylinder. If you do change the crank and bearings. Then you will see! I would bet a simple rebuild would satisfy your need for power. Best all around pipe,in my opinion,is the sst. If your engine is fresh,then make sure it is jetted properly. I only know a couple of people here in Indiana who can push a 125 enough to deserve more power! What are you doing with it?
 
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#6
whenfoxforks-ruled If you do change the I only know a couple of people here in Indiana who can push a 125 enough to deserve more power! What are you doing with it?[/QUOTE said:
I'm doing some jumps and pit ridding, sometimes we go in wood trail that have good hill to climb...
 
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#7
Sounds like you need bottom,off throttle response. The best way is the bore.V force,jetting and a bottom end pipe would be second. Either way a bigger rear sprocket will help both ways! At least 2 teeth.
 
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#8
whenfoxforks-ruled said:
Sounds like you need bottom,off throttle response. The best way is the bore.V force,jetting and a bottom end pipe would be second. Either way a bigger rear sprocket will help both ways! At least 2 teeth.

Thanks man I will check if its worth the price