KX Riders
Maintenance & Technical => KX500 Aluminum Frame Conversion (AFC) => Topic started by: stevea100m on February 25, 2012, 04:00:16 AM
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Does anyone happen to know what the weight difference is between a kx250 motor and a kx250f motor is? My suspension guy was hoping i could find out as it apparently has a bit to do with how were going to set it up
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an 04 KX 250f motor weighs 46.1 lbs without carb or kicker.
Alex
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kx250 01 ,a tad over 53lbs without carb and kickstarter.
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Looks like about 7 pounds, don't think that's enough to worry about on suspension mods.
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how the fuggle do they make a 4t lighter than a 2t?
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Have you ever feel how much a 2t 250 crank weight, compared to a 4t 250?
And than the lighter clutch. Still it's special.
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how the fuggle do they make a 4t lighter than a 2t?
R&D $$$$ :-D
The money has been in 4T.
If the manufactures were to spend a little of that for 2T development it would be a different world...
I think the average rider would be shocked at how little 2T's have actually changed in the last 15-20 years.
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CR250f X with electric start is 59 lbs, CR250f R is 53 lbs. CR250R engine is 51 lbs. I doubt the KX 250f is 7 lbs lighter than the 2T.
Sources:
http://www.allthingsmoto.com/forums/f-62/cr250-engine-weight-44509/
http://www.thumpertalk.com/topic/696860-crf250-frame-weight/
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Well, I weighed the 04 KX 250F motor I was getting ready to put in a bike. You don't have to believe me I guess, but that is what the scale said. It was complete too, except for the items noted.
Alex
CR250f X with electric start is 59 lbs, CR250f R is 53 lbs. CR250R engine is 51 lbs. I doubt the KX 250f is 7 lbs lighter than the 2T.
Sources:
http://www.allthingsmoto.com/forums/f-62/cr250-engine-weight-44509/
http://www.thumpertalk.com/topic/696860-crf250-frame-weight/
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what it really comes down to is the 250f performs like a 125 2t, and the weight difference there
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Well, I weighed the 04 KX 250F motor I was getting ready to put in a bike. You don't have to believe me I guess, but that is what the scale said. It was complete too, except for the items noted.
Alex
Sorry, I wasn't trying to diminish your contribution just pointing out a discrepancy. Perhaps the kick starter, carb, and oil level account for the approximate difference. A quart of oil itself is almost 2 lbs.
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2000 KX250 54.2LB WITH SPARK PLUG, KICK LEVER, REED, AND BOOT, NO CARB, NO OIL
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Just weighed my kx250 09 engine 4t without carb 53lbs
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Just weighed my kx250 09 engine 4t without carb 53lbs
Did this include plug, kicker, oil, ect?
Thanks!
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Yes this included oil ,kicker and plug no carb,it might be a tad lighter than the twoey but it does not last as long.Over a 3 year period of racing its cost a lot more on parts the 250f has over the kx250 06.Everthing being equal.I m talking about engine components ,the 06 twoey has been virtually bulletproof.
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Thanks for the verification.
I'm keeping track of this info.
Also, It's nice to have validation to what I have felt all along that the 2T 250's were more reliable and cost effective than the 4t 250's.