Couple of SA questions

[O3RM125]

I need to get a spark arrestor.. I have a couple of questions about the purchase. The bike is a 2003 rm 125 and it has a PC Works pipe and a PC R304 silencer on it now. I did do a search and didnt find the exact info I was looking for.

My questions are:

Will any brand SA(Im looking at PC or FMF)fit up to the PC Works pipe?

I have heard some stories of riders getting the "stick test" and when the Ranger or LEO's stick doesnt hit a screen they issue a ticket. Is the Krizzman type SA fully legal if USFS approved it even though there is no "screen" in the SA?

I wouldnt mind getting the slip-on type of SA, would the one made for the stock 03 RM 125 fit onto my PC R304 silencer?

Thanks much for any replies! :cool:

edit:
Wanted to add that I think I may have the shorty R304 version on the bike now, but not 100% positive of it.

 

[2-Strokes 4-ever]

FMF, PC, any aftermarket SA/muffler should bolt right up. There's also the "Cobra Sparky"........a bolt on SA only that should be able to bolt up to the end of a stock muffler.......as for your PC muffler, I don't know. Screen type, or turbine type SA, both have stamped on them "US Forestry Approved" which is what the rangers will want to see.

 

[O3RM125]

Just wanted to pass this info I found along incase someone else has the same trouble... and add that I dont have the stock exhaust pieces to use anymore.

I went ahead and ordered the PC Nature Friendly SA for 02-07 RM125 hoping for good fitment with the PC Works pipe.

Fitment was crap really, it fits, but I had to add a 1/4" thick piece of rubber to back up the normal grommet that fits inside the silencer mount and trim about 3/16" off the inlet tube so the SA mount and the subframe mounting location would line up. :yell:

The "can" isnt stamped with the USFS approval, theres a sticker with that info on it. I would have preffered a stamped can. :fft:

Not thrilled, and I expected a little better from a company like PC, but as I said, it fits, and should keep me legal.

 

[mox69]

All three FMF spark arrestors I have purchased have had it stamped into the casing. Stickers will probably fall off very quickly. All of these have also been sound tested and came in at 95-96 db. Two of these bikes had aftermarket pipes. Fit has always been just fine, repacking has been fairly painless.

Might want to look at FM turbine core next time around.

 

[O3RM125]

Yea honestly, the fitment problems I had I could deal with.. But not having a stamped can worries me a little..

I plan to keep my reciept in the truck and if the LEO ever has a question maybe he will accept that as some "extra proof" that it is a USFS SA. Ive also thought about taking it to a machine shop or somewhere and having it stamped.. but again I worry that could be illegal to do.

Ride review:

I was surprised, the bottom and lower mid are great with the Nature friendly SA, better than with the R304 shorty for sure, I noticed no major differance in the very meat of the powerband and in the lower rpms the bike was stronger, easier to drive at slow speeds, R's picked up quicker I think off the bottom. There was a noticeable loss however in the very upper rpms, at the very top really, it just goes flat big time.

Sound is good, more of a ring-ting-ding, than the R304 shorty's snappy-ness, and my son says its quieter, Im not sure, I have bad hearing(75% loss on the left) and have only heard it with hemet on thus far also.