I have friends with 2017~18 KTM/Husky 300 2-strokes with 250+ hours...usually top end every 150 hours or so. No personal experience with 4-strokes at 250 hours
I have the 2020 FX 350, it’s a great handling bike, compact and light. I have fitted a FMF Titanium system, a TWIN AIR gauze free air filter frame, Funnelweb air filter, and I have added the vented side panels......A Rekluse manual torque core, and Clake one light clutch lever....The problem I have is that the engine has very little power off idle, I suspect it is too lean on idle and just above. How to I make it as snappy off the bottom like a YZ250FX?...; My other bike is a Beta 390 race edition, with a Beta factory pipe, obviously a long stroke engine, it pulls well off the bottom.
You have some nice updates on your 20 FX350! I rode a a stock 2019 350SXF with the stock ECU mapped by Twisted Development...that bike had noticeably better off idle throttle response (low to mid). My recommendation would be to get your stock ECU mapped by Twisted Development and make sure you tell them about all the updates to your bike. Let me know how it works if you get it done.
@@briancarroll7948 It really depends on the rider. Fast kid on MX track will find the suspension too soft for moto but excellent in the woods. Slow Vet rider on MX track will find the suspension to be very good for moto and perhaps a bit firm for the woods. However the suspension is adjustable for a wide range of rider skill and off road conditions so it is possible to come up with a setting that pleases a wide range of riders. The engine has a broad usable rpm range so it works great everywhere. For me 350's are the best combination of power/weight/handling and the FX350/350XCF are perhaps the most off road versatile 4-strokes available today.
Is 350 that much more nimble than 450? Sure looks like you are able to move it around pretty easily. How does it compare to your 2 strokers? I have a tx300 i will always have for woods work, but some more open or sandy courses i miss the 4 stroke for stability and getting traction to the ground in sweeping turns. Considering an FE350s for the ultimate do it all. :)
Even though the 350 weight is close it will feel a little heavier in motion than your TX300 as the 350 has more crank inertia. However the 350 does feel lighter in motion than a 450 (I have a KTM 450SXF Factory Edition also). The FE350S engine will run smoother at low rpm compared to the FX/XCF350 but it will also have about 10 less hp too (milder engine tuning). My favorite 2-stroke is a KTM/Husky 300 and my favorite 4-stroke is a KTM/Husky 350. Guess I like the odd engine size bikes:)
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i have a 21 model as well and my biggest concern is how well this bike is gonna hold up when it gets to 250+ plus hours
I have friends with 2017~18 KTM/Husky 300 2-strokes with 250+ hours...usually top end every 150 hours or so. No personal experience with 4-strokes at 250 hours
@@mxengineer1 well i gotta live with it so lets hope she lasts
@@opencurtains9323 Change the oil often, and clean air filters go a long way towards making an engine last!
@@mxengineer1 oh trust me i keep the oil and air filter super fresh
I have the 2020 FX 350, it’s a great handling bike, compact and light. I have fitted a FMF Titanium system, a TWIN AIR gauze free air filter frame, Funnelweb air filter, and I have added the vented side panels......A Rekluse manual torque core, and Clake one light clutch lever....The problem I have is that the engine has very little power off idle, I suspect it is too lean on idle and just above. How to I make it as snappy off the bottom like a YZ250FX?...; My other bike is a Beta 390 race edition, with a Beta factory pipe, obviously a long stroke engine, it pulls well off the bottom.
You have some nice updates on your 20 FX350! I rode a a stock 2019 350SXF with the stock ECU mapped by Twisted Development...that bike had noticeably better off idle throttle response (low to mid). My recommendation would be to get your stock ECU mapped by Twisted Development and make sure you tell them about all the updates to your bike. Let me know how it works if you get it done.
@@mxengineer1 Thanks
So the fx 350 will do fine on motorcross and wood single track
@@briancarroll7948 It really depends on the rider. Fast kid on MX track will find the suspension too soft for moto but excellent in the woods. Slow Vet rider on MX track will find the suspension to be very good for moto and perhaps a bit firm for the woods. However the suspension is adjustable for a wide range of rider skill and off road conditions so it is possible to come up with a setting that pleases a wide range of riders. The engine has a broad usable rpm range so it works great everywhere. For me 350's are the best combination of power/weight/handling and the FX350/350XCF are perhaps the most off road versatile 4-strokes available today.
Is 350 that much more nimble than 450? Sure looks like you are able to move it around pretty easily. How does it compare to your 2 strokers? I have a tx300 i will always have for woods work, but some more open or sandy courses i miss the 4 stroke for stability and getting traction to the ground in sweeping turns. Considering an FE350s for the ultimate do it all. :)
Even though the 350 weight is close it will feel a little heavier in motion than your TX300 as the 350 has more crank inertia. However the 350 does feel lighter in motion than a 450 (I have a KTM 450SXF Factory Edition also). The FE350S engine will run smoother at low rpm compared to the FX/XCF350 but it will also have about 10 less hp too (milder engine tuning). My favorite 2-stroke is a KTM/Husky 300 and my favorite 4-stroke is a KTM/Husky 350. Guess I like the odd engine size bikes:)
2 Stroke is way easier in the woods and the 300 KTM/Husky are are huge demand.