PMB Spark Arrestor Install on my 2019 YZ450FX 

slowngreen the tag them as a “closed course race bike” that way they don’t have to deal with the epa or emissions. The wr trail bike has one though.

Yes they should. If they make a tip the other attachments bolt to the tip. You’re welcome.

@@TheMitchForrest thank you 🙏

Clark Kent I’ve put like 40 more hours on since then too, many more dents now. I’ve never tried banging them out, you’ve had success doing so? Thanks!

@@TheMitchForrest what I meant to say is this. I remove wheel, remove tire/tube then heat inside JUST ENOUGH to politely bend rim (with rubber claw crescent wrench) back into OEM spec. Easy. Once you do one you will want to fix them all, it's that easy. Usually done b4 big ride to prevent catastrophic failures. Then, simply retrue all spokes IF needed. Then put on a new tube tire and your done!! 😆👍👍 Also I bought a cheap rivet gun set to save weight on bike. Repacking muffler every season/ adding ultra silent/ gen maintenance etc. Clean look. Dunlop makes a lightweight competition tire...real nice!! Yellow badge

Maybe just a little. Thanks for watching!

David Dossey yes it is, I already have dents in the front and rear 😕

Michael O'Sullivan made for stock muffler only. Lexx has their own spark arrestor I think though.

@@TheMitchForrest why lexx mxe don't have any like this and its sux cant get any to get this fitted and wish they made some for lexx mxe

Just Havin Fun yes it’s the same part number. My local dealer had one on the wall.

I’m quite sure they provide bolts.

Jeff Brennan pretty sure I only had around 10 hours on it at this point, but would be a good time to do it with it all apart already.

Benjamin Johnson nope

Jared Thompson because they are $400 instead of $100

Ryan Pointer 3/16 I think

Amir Bakhshi no

Forrest Films why not? I have a 17 yz450fx with stock exhaust and it does not backfire. I thought after removing the spark arrestor it will backfire. Then how do some bikes backfire?

Amir Bakhshi this is adding a spark arrestor. Bikes that backfire aren’t properly maintained or fueled right. Spark arrestor is just to match forest service and blm requirements

Fast Eddy feels the same. Stock systems are good these days 👌🏻

Forrest Films awesome !!! Yes they are :) sounds good and so much power in every range

Yeah, everything is so dry around here. 1 spark and the whole Forest is on fire. Tech inspection at each race to make sure everyone has one.

@@TheMitchForrest ah yeah that makes sense. Definitely in the summer time. I've heard of bikes that have backfired on the carb models and the airbox goes up in flames. Not sure about efi models.

MrEnduro efi should be better, but better safe than sorry. I still have a photo somewhere of my 05 Honda 450 shooting 2 foot flames out the exhaust.

@@TheMitchForrest hahaha thats awesome. My drz does that if i do a key banger on it. Crazy loud too but not healthy for the valves. I wouldn't even try it on my yz. You've got me thinking i should run the spark arrester that came with my t6 system.

MrEnduro Give it a shot 👍🏻

FYOU lol. Wasn’t for looks