Another 250 post

"bob and john" (bobandjohn) 10/22/2019 at 10:29 • Filed to: None

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I realized, not a lot of you have heard the 250. Well, here it is, in all its 19K RPM glory.

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Snuze: Needs another Swede > bob and john 10/22/2019 at 06:14

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Its like a swarm of angry bees ! I love it!!!

bob and john > Snuze: Needs another Swede 10/22/2019 at 10:33

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its HILARIOUS to ride. you rev it and rev it and rev it and then rev it some more. and right when you think the valves are going to pop out, you look down and realize you still have another 4K rpm to play with

vondon302 > bob and john 10/22/2019 at 10:34

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19k?

Wow spin it to win it.

bob and john > vondon302 10/22/2019 at 10:41

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spin spin spin spin spin baby :) 

vondon302 > bob and john 10/22/2019 at 10:44

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Too cool. What’s the stats on that motor hp? Tq?

Just curious. 

bob and john > vondon302 10/22/2019 at 10:47

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250cc 4 cylinder, 4 stroke, 4 valve/cylinder
bore x stroke = 48.5 x 33.8mm
hp = 45HP @ 14,500 RPM
tq = 17.3 ft-lbs @ 12,000 RPM
11.5:1 compression
4 x Keihin 29MM carbs
gear driven cams

tiny tiny revvy little thing.   

vondon302 > bob and john 10/22/2019 at 10:53

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Thanks . 

Snuze: Needs another Swede > bob and john 10/22/2019 at 11:09

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My CB-1 revs to like 13.5k and I thought that was straospheric!  I’d love to ride a 250.  

Discerning > bob and john 10/22/2019 at 11:12

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That’ s serious power for a 250!

Wo nder if maintenance is a pain with gear driven camshafts.

MKULTRA1982(ConCrustyBrick) > bob and john 10/22/2019 at 11:14

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I love everything about this. High revs are the best revs. 

bob and john > Discerning 10/22/2019 at 12:06

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less actually. no tensioners or anything to worry about. 

Gaslollipop > bob and john 10/22/2019 at 13:57

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Looks similar to the NSR 250R MC21

bob and john > Gaslollipop 10/22/2019 at 15:52

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chassis code is MC-22, s no suprise there!

Gaslollipop > bob and john 10/22/2019 at 16:11

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That explains it!