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Best CRF250R Year

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Hello,

So i reallyyyyy like the 250's with duel exhaust (2006-2009) i think. Correct me if im wrong.

Is there any problems with any of these duel exhaust models?

During the times of the duel exhaust was there any "major" updates?

Thanks:ride:

Edited by HondaRideRed

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That generation of bikes tends to have valve problems The newer they are the valves are better. Look for an 08/07 because that was a great year bike. Ive heard alot of story's about the 09s not being that good. 2010s had crank problems and tHe 2011s seem well so far

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I love my 09. I sent the head to crfheads.com when I did my top end rebuild and had them install copper valve seats and bronze exhaust guides. Im also using stock titanum intake valves. I checked the valves at about 5 hours as recommended by crfheads and they were .005L,.006R on the intakes and .012L, .011R on the exhaust. That was on March 22. Checked them yesterday and they were the same. I put about 3 hours a week on my bike on a motocross track. I dont live on the revlimiter but I do keep the rpm up and am not afraid to beat on my motor a little. It always starts within 4 kicks hot or cold.

One thing I did after hearing it recommended was to seal up the airbox between the boot and the box itself. Supposedly that is an area prone to allow dirt past the filter.

My engine mods are the crfheads head rebuild with copper seats and bronze guides. Ported with the stock cam and a 13.5-1 wiseco piston. It makes really good power. Got the jetting right and it starts easy and runs great. I could go on all day about this bike but I wont bore you. lol :smirk:

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just for the record, I have '10 and haven't had any crank problems..it is a later model though...not one of the early ones. so far it has been bullet proof.....unfortunately, I haven't been ...lol

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i had an 06 prior to my 2011, the 06 was a good bike, i always keep up on my maintenance and my valves so my valves lasted a long time,dont know how you ride but im not on the rev limiter non stop either though so that helps

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I had the 07 and would say it was solid. However if I could do it again I would go to an 08.

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i have an '06, with about 5 original hours on it! :smirk: my father in law bought it rode it once and parked it in the hangar...fantastic bike, jd jetting kit, full AP mod and it start 1st kick everytime! solid bike so far, valves are super easy to inspect and measure, takes about 20 mins to tear it down, measure and put it back together. my only complaint is the fuel petcock isnt on the tank, so it pisses fuel out until you get a bolt stuck in the hose. haha

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09 seems to have been the best... google some reviews.. it was a pretty awesome bike. I had the 08 which was almost the same bar the combustion chamber change and it was one of the most impressive stock bikes i've ever ridden. I've seen some 2 ride old 09's for around $6k in melbourne. My 08 valves only lasted about 15 hours... so just get ready to put some $161usd faction intakes in it (got 200 hours)... or get CRF heads in the states to send you out a prebuilt head with exceldynes if you want the premium option.

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just for the record, I have '10 and haven't had any crank problems..it is a later model though...not one of the early ones. so far it has been bullet proof.....unfortunately, I haven't been ...lol

I wish you the best of luck. I just hit 54 hrs on mine and it is a headache to get this thing back. i bought new crank, cylinder, piston, bearings and all. Now i have to replace oilpump and cases and more. but when that thing runs it runs better than any honda 250f ive ever rode. it is just so fun and fast.

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gee this is intresting i have just pulled my whole motor apart to rebuild the crank i have a 2010 crf 250r about 60 hours on it, the bottem end bearing has sezied i have good oil and every done correct but yea just sezied up, i have to order parts on monday, do u have to replace the whole entire crank shaft or can u just get the big end bearing.

i have seen on alot of sites where u but the whole crank but i havn seen just the bearing to replace ?

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We like our 2010. We also had the early crank failure but I'm thinking there must have been a bad batch of bearings or something. I've seen several go over 150 hours without failure and seen other fail short of 50. I replaced ours with a honda part because that's all that was available at the time. I just finished another rebuild with just over 70 hours on that crank/piston and the parts that came out looked practically new. I put a new head on it too because I'd been told that at 140 hours the guides, seats, and valves would all be worn out. Well, that wasn't the case either. Valve clearance had not changed from just after breakin and there was barely any slop in the guides. To make a long story short, the '10 seems to have the best valve set up yet, and unless you got a bad big end rod bearing the rest seems to hold up just fine too.

Fyi, my son is a B rider and this bike does 100% of it's time on the track.

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gee this is intresting i have just pulled my whole motor apart to rebuild the crank i have a 2010 crf 250r about 60 hours on it, the bottem end bearing has sezied i have good oil and every done correct but yea just sezied up, i have to order parts on monday, do u have to replace the whole entire crank shaft or can u just get the big end bearing.

i have seen on alot of sites where u but the whole crank but i havn seen just the bearing to replace ?

I would get the whole crank. If you have time you can send out your failed crank and have crank works or another reputable shop replace the pin, bearing, and rod. Might not hurt to have it balanced too.

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ok, yeah seems to be a big problem with the 2010 the cranks, but other than that i have not had a single problem with the bike.

I dont really have time as i have a race in just a couple of days so looks like ill be replacing the whole crank.

Cheers

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i have an 06 and it runs fantastic. only problem i have ever had was that it has a bit of a bog when u go from no throttle to full throttle. but ive learnt to use the clutch which eliminates most of it.

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