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View Full Version : fmf ram valve pics...is it worth it?


hrc85250r
02-14-2005, 10:11 PM
....my friend gave me a complete cr250 top end, it was mid-eighties and i said sure why not...i didnt see it but he said it was iron bore, and i know there was only a year or two they had iron bore and i thought one of them was the year i could use on my 85 R....wrong! it was one of those crazy octagon shaped cylinders and obviously wouldnt fit.....so i took everything off it(it cam with the intake still on it with the heads stripped out), i just put the balls to the screws with a newer screwdriver and they came out...i ffigured i might be able to use the manifold for my R to put a 38 on...the 38 fit on the manifold nice, but the "neck" of the manifold was about an inch longer than my R manifold...so i looked at the reeds, i figured they were stock...nothing special.....i flipped them over to look at the carb side and this crazy blue reed stuffer came out....i looked on the internet for a while until i saw a picture of the fmf ram valve....it was the same as mine! so i check to see if it would fit on my R, and its the same exact bolt pattern and it fits like a glove....so my question to you guys is...is this reed cage anything wirth putting on my bike? i already have boyesen pro series reeds in my stock cage...
hrc85250r
02-14-2005, 10:14 PM
also, the cage and reeds are in good condition, no cracks or anything....
Red Rider
02-15-2005, 12:40 PM
The reed stuffer is supposed to smooth out the airflow to allow more air to flow. I have an FMF ram valve on my 250R & I like it, but there is a lot of newer technology out there these days, whether or not it's better technology, I don't know.
hrc85250r
02-15-2005, 01:31 PM
The reed stuffer is supposed to smooth out the airflow to allow more air to flow. I have an FMF ram valve on my 250R & I like it, but there is a lot of newer technology out there these days, whether or not it's better technology, I don't know.

do you keep the stuffer in? i talked to the tech guy at nacs earlier and he said that you can take it out or more top end, which is what i want more of...
Red Rider
02-15-2005, 05:53 PM
I've never tried that. I've always run it with the stuffer in. I know it won't hurt anything to remove it though.
hrc85250r
02-15-2005, 06:03 PM
ill try it both ways...thanks man
Red Rider
02-15-2005, 07:39 PM
You're welcome hrc. Let us know if there's any noticeable differences between stuffed or unstuffed.
hrc85250r
02-15-2005, 07:41 PM
will do.....:cool: