Daily Maintenance should be similar on both depending on your handbook specs but I did hear oil changes on 4t's are more often? My 200exc is every 20hrs I do it between 10 and 15 hrs which is quite a few rides.
But clean bike, air filter and Airbox, oill fork tubes and chain after every ride even if the hour meter only shows 2 hrs riding. Brakes, tyres, forks, shocks should be similar between the 4t and 2t as well. I agree with Rupe clean filter every ride, very important on any bike!!!
My smokers get stripped every 50 hours usually its a piston kit then next 50 only rings depending on how it measures up (high revving 125's need more). Now that I'm on an exc I could shift that out to 100 hrs but I probably won't be able to help myself from looking in there, somewhere between 50 and 100 hrs. Bearing in mind Danger got 400 hours out of his 200exc and he is a lot quicker than me and runs much finer tuning. So the production 2T enduro bike should be much cheaper in the long haul to maintain!
Replacing a piston and rings is very similar between the two in time and money, which is being constantly put forward as a case for maintenance being similar?? But the way I see it this is simply not the case, sooner or later you will need to do valves, valve springs, timing chain, chain tensioner valve reseat/grind and all that goes with it. Whether that be at 50 hours or 250 hours??
If you can afford to buy a new bike put 100 or 150 hrs on it then flick it off then all well and good! But a lot of people are finding that they can only afford to buy this bike, instead of a new one, and they are the ones getting caught with the 2K top end refurbish that they cannot do themselves or get a mate to do. Because it is a 4T a shop has to do it. Sooner or later somewhere along the ownwership chain this will happen, so no one can convince me a 4T is comparable over its life to a 2T in regards to maintenance, and as per a previous comment thats why the shops like selling them. Mind you I do hear (true or not??) that Ktm (and to a large extent because they have stuck to their 2smokers) are now the highest selling dirt bike worldwide, with the 300exc being the bike of choice. I predicted that the japs would regret their decision to trash 2T's and go after the big bucks, the market is deciding.
Now touching quickly on ride-ability there is no doubt in my mind the 4T delivers its power better for overall speed than the 2T. I'd probably climb those hills better at the sandpit on a 4T and even make it up more than I do now. If I was racing MX its a 4T for sure they are simply faster because of their power delivery. But for me there's much more fun in dancing 2T over the whoop's at speed and feeling the sting of the power even if it means I don't make it up the odd sandhill, which is a rider failure not the bikes. With the power valve adjustment and tuning I have just changed my bike from a sedate kdx type bike to a much more smack you in the arse type bike its a completely different bike from say when Boom or A&R rode it last. I can't see you doing this so easily to a 4T either, they don't have a power valve and if you tune them rich they don't lug around like a 2t they simply don't go. My 2hundy will lug a bit like a 4t I just keep forgetting to not twist the bloody throttle. So its 2smokers for me they are simply more fun to play with, on and maintain.
Just wait till direct injection (or similar) hits, its looking like same power delivery and power out of a 250 2T as a 450 4T delivers. Mark my words when they stop 2smokers from smoking you will all be riding them, there is simply no way do deny the efficiency and power output of the engine.
Everyone knows I'm a 2smoke man but have tried to keep the above as balanced as I can. Just my 2c??
On a Motorcycle you're penetrating distance, right along with the machine!! In a car you're just a spectator, the windshields like a TV!!
'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out! Shouting, ' Holy sh!t... What a Ride!! '
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Originally Posted by B0000M
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