Author Topic: Weight difference?  (Read 7825 times)

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Offline stevea100m

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Weight difference?
« on: February 25, 2012, 04:00:16 AM »
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

Offline alward25

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Re: Weight difference?
« Reply #1 on: February 25, 2012, 06:33:18 AM »
an 04 KX 250f motor weighs 46.1 lbs without carb or kicker.

Alex
"Let there be light"

Offline KXDINO

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Re: Weight difference?
« Reply #2 on: February 25, 2012, 01:43:20 PM »
kx250 01 ,a tad over 53lbs without carb and kickstarter.

Offline alward25

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Re: Weight difference?
« Reply #3 on: February 25, 2012, 02:19:47 PM »
Looks like about 7 pounds, don't think that's enough to worry about on suspension mods.
"Let there be light"

Offline kwakman

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Re: Weight difference?
« Reply #4 on: February 25, 2012, 08:53:22 PM »
how the fuggle do they make a 4t lighter than a 2t?
And lo, I did loft the front wheel and carried it forth to the unbelievers, and cast it down before them and said unto them ''look now upon the might of my throttle control ye pitiful cretinous ones''
And the unbelievers did quake in their boots....

Offline Dutch-K5 Fan

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Re: Weight difference?
« Reply #5 on: February 25, 2012, 08:57:38 PM »
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.
Proud owner of a KX500AF

Offline sandblaster

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Re: Weight difference?
« Reply #6 on: February 26, 2012, 03:39:39 AM »
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.
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline mxaniac

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Re: Weight difference?
« Reply #7 on: April 25, 2012, 03:21:19 PM »
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/

Offline alward25

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Re: Weight difference?
« Reply #8 on: April 25, 2012, 03:46:11 PM »
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/
"Let there be light"

Offline Marco810

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Re: Weight difference?
« Reply #9 on: April 26, 2012, 01:08:44 AM »
what it really comes down to is the 250f performs like a 125 2t, and the weight difference there

Offline mxaniac

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Re: Weight difference?
« Reply #10 on: April 28, 2012, 05:40:17 AM »
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.

Offline sandblaster

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Re: Weight difference?
« Reply #11 on: April 30, 2012, 04:46:24 AM »
2000 KX250 54.2LB WITH SPARK PLUG, KICK LEVER, REED, AND BOOT, NO CARB, NO OIL
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline KXDINO

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Re: Weight difference?
« Reply #12 on: June 04, 2012, 08:51:16 PM »
Just weighed my kx250 09 engine 4t without carb 53lbs

Offline sandblaster

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Re: Weight difference?
« Reply #13 on: July 14, 2012, 12:46:30 PM »
Just weighed my kx250 09 engine 4t without carb 53lbs

Did this include plug, kicker, oil, ect?
Thanks!
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline KXDINO

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Re: Weight difference?
« Reply #14 on: July 14, 2012, 09:16:59 PM »
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.