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Old 03-26-2011, 12:21 AM
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Default how to ride a 250?

     

alright so i feel slightly dumb asking the question, but im finding it hard getting to all the power on my rm250 and keeping it there... its got ALOT of power, but either its just me, the bad bald rear tire, or its not jetted properly... when its warm it runs good but when you start it and its in nutral, warm it up, and u give the throttle a wack it will go half throttle and bog a little bit (not choke and die, just struggle) and after it is done blowing smoke like a coal train it gets to full throttle fine, should i adjust the floats? also, can i ride it like my 125 (minus the clutch feathering) because im afraid since its big if i ring it out alot ill blow up the piston, is it safe to keep it in the high rpm range? like a 125? i feel really dumb for asking this sorry
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Old 03-26-2011, 12:33 AM
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Just got to get it to operating temperature.
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Old 03-26-2011, 12:39 AM
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You answered your own question.....

"when its warm it runs good"
You have to let it warm up bud. Give it a chance, also some bikes take longer than others to warm up.
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Old 03-26-2011, 12:47 AM
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alright thanks guys, yea i was used to my 125 were in 1 minute its warmed up to operating tempature... guess its different now with the coating and all the cooling features, ill have to wait just a little bit longer before riding then, wut about winding it out? is that safe?

---------- Post added at 10:47 PM ---------- Previous post was at 10:45 PM ----------

like i mean 3/4 to full throttle all the time... like my 125
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Old 03-26-2011, 12:58 AM
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When it's hot grasshopper, when it's hot.
Wanna know when it's hot enough....stick your tongue on the exhaust pipe.
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Old 03-26-2011, 12:59 AM
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ill remember that, my tongue gets mighty cold out there sometimes!
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Old 03-26-2011, 08:49 AM
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Quote:
Originally Posted by supercr125 View Post
ill remember that, my tongue gets mighty cold out there sometimes!
Well you know I'm picking at ya but for your question, I have a 07 CRF250X and when it's cold, say between 35 & 50 degrees, it has to warm up (idling) at least 5 minutes before it will run right.
Also bud, don't run that 2 stroke wide open when it's cold because it will cold seize meaning the piston grows hot and expands before the cylinder does. If that happens you will just replace more pistons/cylinders.
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Old 03-26-2011, 03:00 PM
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Quote:
Originally Posted by Mainjet2001 View Post
Well you know I'm picking at ya
lol yea i know dont worry
so letting it idle for about 5 minutes no throttle will just about do the trick? maybe 6 or 7 for good measure, its just been rebuilt and i dont want to cold seize anything
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Old 03-26-2011, 03:41 PM
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Quote:
Originally Posted by supercr125 View Post
lol yea i know dont worry
so letting it idle for about 5 minutes no throttle will just about do the trick? maybe 6 or 7 for good measure, its just been rebuilt and i dont want to cold seize anything
He's talking about a 4 stroke though... letting a 2-stroke idle for any amount of time will eventually foul the plug (as you prob know from your 125, 2-strokes are kinda notorious for this). I'll usually ride my cr250 easy for a while with just a light load, just put around the track/dunes until she's running right. Also, get a temp sticker for the cylinder, not only does it alert you when you are low on coolant, it also lets you know when you're warmed up. That way you know when it's finally safe to unleash the beast!
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Old 03-26-2011, 06:46 PM
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Quote:
Originally Posted by slomo85 View Post
He's talking about a 4 stroke though... letting a 2-stroke idle for any amount of time will eventually foul the plug (as you prob know from your 125, 2-strokes are kinda notorious for this). I'll usually ride my cr250 easy for a while with just a light load, just put around the track/dunes until she's running right. Also, get a temp sticker for the cylinder, not only does it alert you when you are low on coolant, it also lets you know when you're warmed up. That way you know when it's finally safe to unleash the beast!
gotta be the best advice ive heard yet!! thanks bro! i got some of those layin around, i went for a ride today, once again, i was completely amazed at the power it has.
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Old 03-27-2011, 01:24 AM
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What are you mixing oil and gas at? That might be part of your smoking issue too.
Yes, you can run it like a 125, but you'll probably find that you don't have to. When I first switched to a 250, I felt like I was going slow because you are so used to hearing the 125 engine wide open all the time. Oh a 250 it seemed like I was sort of going braap braap braap. But I was actually going faster.
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Old 03-27-2011, 01:37 AM
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just mixed the gas at 36-1 today with about 1 ounce of octane booster for 1.5 gallons, its not smoking as bad and DEFFINATLY has more power, i was using cheap penzoil premix for chainsaws before i switched to castor 927 synthetic
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Old 03-27-2011, 02:29 AM
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look at it this way,,,,if your bike went 22 years without having the float set, why do it now?
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Old 03-27-2011, 08:49 AM
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Quote:
Originally Posted by ossagp View Post
look at it this way,,,,if your bike went 22 years without having the float set, why do it now?
Whats the cutoff point? I just set the float level on my 15 year old CR over the winter.
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Old 03-27-2011, 01:52 PM
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ossa, my bike went from 200ft elevation to 1000 ft elevation, thats why
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Old 03-27-2011, 05:18 PM
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Good luck Andy....
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