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FMF Gnarly and turbinecore 2 pipe / 2019 250XC hard enduro build
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- Äas pĆidĂĄn 18. 02. 2019
- This is the first of a number of videos on the 2019 250xc build for hard enduro. I talk about why I choose the FMF gnarly pipe and Turbinecore 2.
FMF gnarly pipe: amzn.to/2BF7emQ
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I can't get over how thrashed your bike got in one season. Proof that hard enduro really is a super tough sport. I think in 39 years of riding I only dented 1 pipe. And it was my wife that crashed my brand new 2018 yz250 lol. I'm running a fatty and 2.1 fmf cuz my buddy Davis gave it to me.
haha yeah the rocks we ride aren't very forgiving on the bike thats for sure, trade you pipes? :)
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Update: 8/2019 - Experimenting with opposites: Running Green spring with dolly flush and a Pro Circuit Platinum Pipe. Slight bog on the bottom as expected but the power control is interesting. For hill climbing and flowy single track works well. The KTM Engine and Chassis are amazing. 7/2019 Running FMF gnarley pipe and red spring. Dolly turned in 1.75 turns. 2001 KTM 300 MXC. Works equally well on tight single track and wide open spaces. Cheers!
I have the same setup on my 1995 CR250R and agree. I also have a 10oz STEAHLY flywheel weight. I was running the FMF Fatty, but am not a âtop endâ rider. I like to short shift and lug.
In New England, itâs how it is, you find what works best for the roots rocks and mud.
I like your videos, keep them coming.
Looking forward to the build series!
Thanks! got a lot to do!
Gnarly to a 2.1 silencer on a 17 KTM 300XC. Always run the gnarly for increased low end, but stock pipe not much different performance wise on the 17. Higher compression head helps a bit more. Nice nomad
Making me want a 2 stroke!! good looking bike buddy! Thanks for making these videos.
Everyone should be on 2 strokes. Noise from 4 strokes closed 3 local tracks in my area. We rode from 1980 till around 2010 the complaints started rolling in about noise.
I sold my kx450 for a kx250 2stroke and i never regret ! đ
Have a 300 xc w 2020 & 500 excf 2018= the 300 is more fun! The 2 stroke is more fun!
I believe the SRT's are a direct clone but slightly stronger. The FMF gnarly on the other hand is both reshaped for low to mid torque gains and is significantly more robust than stock.
Also, on my yz250x I run the same setup as you on your '19 (gnarly and turbine core 2). I've found that it's the most cost effective option to get me USFS legal, and I like how the gnarly gives my 250 a better low and mid range pull. On the yz250x it does definitely kill peak hp and over-rev but for most riders I believe that the stronger low to mid makes the bike better overall in that it's more controllable and less prone to stalling.
If and when you bash that thing up be careful when blowing it out. The newer shape pipes with the new mountings are difficult to refit after using say a hydraforce water blowout kit. The problem is the pipe wants to straighten out. To over come this fasten something around the exhaust collar 'O' ring end and loop it through the bracket hole that would fasten to the front of the frame. use a piece of chain or strong cord. This will maintain the correct distance between the bracket and exhaust inlet collar. If you don't do this it will be a cow to fix.
As a kid, I once sealed the pipe with about 20-25 psi air pressure from a bicycle pump, and used a propane torch to heat up a pretty good sized dent in the belly section. I had a wet rag ready in my other hand to stop the movement, and it came out almost perfect. That is why I don't care for chrome pipes, because the heat will make it ugly. But, I have done enough things in my life to know, that when you do a process the first time and it comes out good, it is a good process. :)
I run the gnarly and the 2.1. I'm happy with both. I went with the 2.1 because it was recommended by a friend of mine who said it was quieter than the 2. Not sure if he was right but the increased bottom end I got from the combo was well worth it.
it makes sense that the 2.1 would be quieter more packing to quiet it down, never thought of that before though. will have to listen to my friends bikes next ride. the TPI are quieter though
I have a 2021 YZ250X. I been really setting it for the trail riding, tgats why i got the x model. With the lectron carb, v force reeds, gnarly lipe and turbine core 2 silencer my bike has turned into a torque monster. I can lug it so low now and it just won't die, and has the bottom end torque and linear power like a 4 stroke with two stroke fun love it. Got the power of a 300 ktm, and the agility and ease of riding of a 250. My bike totally whoops my feiends 97 ktm 360sx now to. And that bike is scary.
Those are pretty much the mods I a doing to my 2019 YZ250. I will use the stock carb because I am pretty good at jetting them, but I also will use the V-force reeds, (the stock reed stop plate actually blocks off the rear reed transfer tunnel about 50%, so I did open up that tunnel a bit too. I port 2-stroke engines for a living.), but not the stock aluminum spacer plate on the stock reed black, (for less crank case volume, and a harder hit). I had to fix some port champers, (the exhaust was tough on the rings), but I did not alter any port window sizes. I have the Gnarly bolted on too, and I am happy to read your results. (I won't ride mine until spring). But, I did one other thing for more low end power. I lowered the cylinder by not using the base gasket (seal it with a good gas proof sealer), and that lowers the exhaust port time by a couple degrees duration, to better match the lower rpm target of the lower rpm pipe. That also raises compression (90 octane gas is too low for the stock YZ), and it will need to run 100 octane gas. The nice thing about all these modes is, they are all reversible. So if it hits too hard, I can raise the cylinder back up or add that aluminum reed block spacer plate. if your bike is the low end grunter you say, my additional mods may be too much. But I doubt it for my sandy whooped out trails.
I found your input more informative than any YT vid I have found.
Oh, if I like the lower cylinder, I will machine off the cylinder base gasket thickness when I rebuild it, and use the gasket.
Try the hydra-force dent remover. Worth the 120 bucks
I run the fmf gnarly with the pro circuit silencer. Non sparky.
The 250 is perfect. No need in a 300.
Agree ....Iâve had a few 300âs and always back to snappy 250.
On my old kx250 2003 i run a fmf gnarly in front and procircuit r-304 in back, the devil sound in the Wood ;)
souunds soo good :D but for me the r304 is just way to loud haha
Fitting the exhaust can you just run it straight away or do you need adjust anything on the ecu ie for fueling or anything?
Try a hydra force blow out kit for the pipes, my pipe was dented and slightly bent and it took the bends out aswell so now it seats at the cyclinder
I was going to sugest this. I just got mine last week and haven't had a chance to test it yet. I'm currently running a SRT pipe and have the stocker waiting to be fixed. I'll make a video for sure.
Yea it fixed my standard pipe but there was a pinhole in my 4hr old fmf gnarly so it wouldnât build up enough pressure. Need to patch the hole and try again
@@dazaladz Hardest part for me was getting the fitting off the silencer end when finished.
Same as that actually I had to put a spacer between the pipe and bracket to keep it out from the shock and then put a hose clamp over the rubber bit where they meet as the silencer wouldnât push in fully and line up with the holes. It leaked air but now that Iâve put the hose clamp and some high temp silicone itâs fine
Fill pipe with water, block ends up then put in freezer, water expands when frozen so will pop out dents for free
That dent is a factory dent on the pipe there is one where the rad is and one on the outside of the pipe.
Yep new for these newer mounted pipes.
gnarly and 2.1 on my 18 300 and pretty happy with it. On my 19 300tpi I run the stock pipe with a pro circuit r304 shorty, it screams! Really like the shorty but not NFS approved.
I run the gnarly and 2.1 love it shorty was too loud for me and the power core 2 wouldn't let the motor rev.
Did you take the fork off for filming, or does it make the pipe installation that much easier?
no was just working on the forks, its easy enough to do it with the forks on
What's wrong with running a p-tech guard to save the pipe ?
How come this is not available for 2006 and newer ktm. I canât seem to find it
kinda late maybe but it is :) here is the parts number: SXS08300560
Im thinking getting a 250 2 stroke but at moments got 2005 kx85 bw, my old clean 99kx 80 sw was more powerfull, heard due to more grunt as 26mm carb rather than 85 28mm, jets on kx80 58/122 kx85 45/145 not much in it 1.5bhp or so bit noticeable running stock bikes
I can't seem to get the 85 to fully hit band in 6th but all other gears fine, does it need a top end and or maby same size jets as the 80, or shall i rebuild the whole engine, have jug ported and polished, fit lectron carb then fit fmf fatty front then shorty rear or Q or turbine 2 to make more quiet so dont get heard riding it as much lol.
Is the loud short fmf really give more bottom to mid better than the Q or Turbine core2?
Or will just fitting Fmf fatty and Turbine core 2 leaving everything else standard get the 85 faster than the 80 ever was?
The 80 power band was more violent to.
Any ideas guys on what to do get it running better?
I run the 2 because it's louder and sounds better in my opinion. Louder is better because it gets people out of the way faster when I'm racing harescrambles.
haha I guess that makes sense that its smaller and would be louder, less to muffle it
@@TrailBoundco the harescrambles here in Michigan are mostly very tight, wooded single track with no room to pass, so when you come up on a slower rider you rev your bike to tell them to pull over and let you pass. This makes a little louder exhaust helpful.
Put a bike bell on lol .... ding ding.... ding ding ... sorry had to
@@endurotruckererniedesjardins lol it might work, might not be loud enough though haha
I have two different silencers for my 250xcw. I've noticed with the TurbineCore 2.1 that it gets really spooged up and with the Powercore 2 there's no spooge at all. Does anyone else notice this too with the Turbinecore?
The "spooge" is because your carb is jetted rich, (carbed bikes come rich from the factory). Learn how to Jet the needle and the main jet, (light brown spark plug color at full throttle, all dry), and the spooge will burn before it gets out, and you will gain about 2hp. The reason why one silencer is messy and the oth4r is not is probably because the packing is sucking up the spooge on the clean one.
The SRT is a clone of the FMF Fatty. I'm running the SRT on my 300XC with the turbine core 2.
I know we don't have much proper law anymore, but what that is, is a company knocking off FMF's work, and morally considered stealing.
That makes you an accessory to theft by buying stolen property and funding theft. Yea, I know it is "legal". But there is not much moral about our legality today.
Shave the head too! Nice little boost in low to mid grunt
little extra braap in her step?
Shaved the heads on my 300xc and yz250x. Great mod!
"Dent" lol. My bro just got a 19 300 and the dealer said" please look at the stock dents they put in from the factory. You don't know how many guys bring their bikes back because of the factory dent."
Excuse me. dents
hey love the videos, quick question do you have a bit of a lip on the bottom of your flang protector when installed, i know it's suppose to be flush but mine isnt, it goes down in a tiny bit more on the bottom while everything else is flush.
Ashen i think it might stick out a little bit? Would have to check later
You didnât dent your stock pipe on your 19. That flat spot on the outside is supposed to be there and it comes like that from the factory. The pipes on my 19s were like that. Iâve found that I havenât smacked my pipes on the 19s as much as previous years. I think it is because they lifted the pipe up and tucked it in closer to the bike everywhere. Iâll still end up smashing the hell out of them in the diamonds but itâs just taking longer than normal
Why would you run the fatty on a 300 & not the gnarly? Gnarly would do great on a 300xc/xc-w.
Jeff Flick stretch that top best of both worlds
I run a pro circuit shorty with a end cap / spark screen and Iâm running a stock expansion chamber right now but want to get the full system
nice what bike? have you had to burn out the spark end cap yet?
How did you put a spark arrestor on a PC shorty?
Trailbound co I have 2 extra screens and the people I get them make extras. I have blown one out before though but if you maintain it itâs fine
Luke Hufford where Iâm at people CNC them and they just bolt on the end after drilling the rivits also cost as much as a turbine core 2 in total
Trailbound co also I ride a 2019 yz250x
Pipe dents are concave - not nice and flat, because the convex curve has more area than flat surface and it has to go somewhere. Stock pipe's been stamped/shaped for clearance, but you knew that.
Gnarly or fatty gold series
Why are you putting the beat up parts off your old bike on the new bike?
which parts? The FMF gnarly and turbine core are brand new. last bike had SRT and turbine core
@@TrailBoundco the last few shots showed a black side number plate and the seat off the other bike. Am I wrong?
Gnarly is a much beefier pipe than stock, but dollar for dollar money is better spent on an RK Tek head for low end grunt!
nice, heard good things just need something beefier than stock first thats for sure
Forget the RK Tek head, considering your on a 250 just get a stock 250 sx head. Around $100 dollars. It made a big difference on my â17 250 XCW. It is the one factory part unavailable to the 300 crew.
Isnât the whole idea of âcoreâ that the SA is built into the core? If park officials prop it theyâre going to feel anything. A conventional SA would choke up with spooge. Thanks for the video
What type of bag have you got on the forks there, near the bar pad?
fork bag???
@@TrailBoundco On your old ktm there is a bag there just in front of the gas cap, holding onto the forks. Unless I'm seeing things? Looks like a small bumbag or something. What do you put in it?
@@TonyRidesDirtbikes oh gotcha the bar pad bag. product I'm working on for the shop. fits a cell phone, bar, zip tie and mini trail saw
Ah ok, that's awesome. I'll look into that once you have it up.
Gnarly all the wayđ€đŒđđ»
yeah buddy!
Just dented my Fatty from just a rock kicking up. Should have got the Gnarly.
powerdent pipe! shop.trailbound.co/products/trailbound-powerdent-pipe
your '17 is painful to look at...
Brian Langhorst hey now! đ
Wash your bike, for fuckâs sake.
I was gagging looking at his poor '17 in that condition. :-) It happens sometimes though...
Ya they should build bike off your tools get extension stop crying