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Everything Dirt Bike
General Dirt Bike
I made the switch (2t to 4t)-- what should I know?
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<blockquote data-quote="RageD" data-source="post: 214346" data-attributes="member: 4512"><p>So it's been a while since my last post here! After fixing the fiasco with my brakes (doh! master cylinder..) I started taking the bike out to the track. After putting it around (one time so bad that I killed a spark plug), I began to realize the 2t was a bit too much bike for me.</p><p></p><p>Earlier this spring I finally made the switch from a 250 2t (YZ250) to a 250 4t (KX250F)-- I guess I also made a blue to green switch too. The major reason for the switch: the 250 2t was good for woods where I wouldn't get out of 2nd or 3rd gear often, but I found it to be really too much bike for me when I would take it on the track. Seeing as that's where I want to spend more of my time riding lately, I decided I needed less power. The reason from going blue to green is honestly price. Sorry Yamaha <img src="https://www.dirtbikeaddicts.com/static/images/smilies/frown.gif" class="smilie" loading="lazy" alt=":(" title="Frown :(" data-shortname=":(" /> my loyalty can only stretch as far as my wallet.</p><p></p><p>I've been pretty busy, but I've been able to get 8 hours in on the new bike. The switch was not as natural as I had hoped, but I would definitely say I now <em>feel</em> better on the track with the 4t. I'm not quite to the point of ringing it out since I would certainly classify myself as a motocross novice, but I suspect the fact that I never hit the rev limiter may help the engine last a bit longer? <img src="https://www.dirtbikeaddicts.com/static/images/smilies/smile.gif" class="smilie" loading="lazy" alt=":)" title="Smile :)" data-shortname=":)" /> Even so, I'm sure I'll miss the 2t when I finally get it sold.</p><p></p><p>I've been doing standard maintenance: oiling air filter before every ride (cleaning every 6: it's not very dusty where I ride and intake always looks clean, probably replace at around 10 hours for piece of mind though), changing the oil and cleaning oil filter every 6-8 (just went through my first oil change since break in), chain adjustments/lubing, carefully washing after rides (i.e. no power washer and never put away wet), etc-- the typical maintenance I would also do on my 2t.</p><p></p><p>The bigger thing I'm concerned about I suppose is engine maintenance. I've read a bit about checking the valve clearances every 15 hours and shimming if/when necessary (plan to do that when I get there), but is there any other low hanging fruit that I should keep an eye on? This bike is also fuel injected, so while I don't have to worry about the carb and jetting anymore, is there any routine maintenance you guys can think of for EFI?</p><p></p><p>Thanks!</p></blockquote><p></p>
[QUOTE="RageD, post: 214346, member: 4512"] So it's been a while since my last post here! After fixing the fiasco with my brakes (doh! master cylinder..) I started taking the bike out to the track. After putting it around (one time so bad that I killed a spark plug), I began to realize the 2t was a bit too much bike for me. Earlier this spring I finally made the switch from a 250 2t (YZ250) to a 250 4t (KX250F)-- I guess I also made a blue to green switch too. The major reason for the switch: the 250 2t was good for woods where I wouldn't get out of 2nd or 3rd gear often, but I found it to be really too much bike for me when I would take it on the track. Seeing as that's where I want to spend more of my time riding lately, I decided I needed less power. The reason from going blue to green is honestly price. Sorry Yamaha :( my loyalty can only stretch as far as my wallet. I've been pretty busy, but I've been able to get 8 hours in on the new bike. The switch was not as natural as I had hoped, but I would definitely say I now [I]feel[/I] better on the track with the 4t. I'm not quite to the point of ringing it out since I would certainly classify myself as a motocross novice, but I suspect the fact that I never hit the rev limiter may help the engine last a bit longer? :) Even so, I'm sure I'll miss the 2t when I finally get it sold. I've been doing standard maintenance: oiling air filter before every ride (cleaning every 6: it's not very dusty where I ride and intake always looks clean, probably replace at around 10 hours for piece of mind though), changing the oil and cleaning oil filter every 6-8 (just went through my first oil change since break in), chain adjustments/lubing, carefully washing after rides (i.e. no power washer and never put away wet), etc-- the typical maintenance I would also do on my 2t. The bigger thing I'm concerned about I suppose is engine maintenance. I've read a bit about checking the valve clearances every 15 hours and shimming if/when necessary (plan to do that when I get there), but is there any other low hanging fruit that I should keep an eye on? This bike is also fuel injected, so while I don't have to worry about the carb and jetting anymore, is there any routine maintenance you guys can think of for EFI? Thanks! [/QUOTE]
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I made the switch (2t to 4t)-- what should I know?
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