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Thumper40
Joined: 21 Nov 2011
Posts: 3
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 Posted: Mon Nov 21, 2011 4:09 pm Post subject: CRF230F motor in CRF150F |
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| Is there any way to drop a 230 motor in a 150f, if so what modifications/parts are needed? I already have a 150f. |
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crfsonly
Owner
Joined: 01 Apr 2004
Posts: 8425
Location: SoCal
2005 Honda CRF450X
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| Posted: Mon Nov 21, 2011 5:03 pm Post subject: |
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welcome to CRF's Only. haven't swapped motors so i can't speak to this specifically. hopefully, someone has some experience with this type of "monster garaging". 
ken |
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Hondacrfrider
Joined: 14 Jan 2011
Posts: 304
Location: Virginia
2012 Honda CRF250R
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| Posted: Tue Nov 22, 2011 2:01 pm Post subject: |
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| i have a friend that did it so i would deffinatly say its posible but it would take some work and you would have to know what you are doing |
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Thumper40
Joined: 21 Nov 2011
Posts: 3
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| Posted: Mon Dec 19, 2011 9:31 am Post subject: |
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How about a 230 crank in the 150 with a 230 top end (piston, cylinder, valves . . .) anyone know if this would work? Then I would have a 5 speed 230, just what im looking for!  |
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Old Dude
Joined: 19 Jul 2005
Posts: 814
Location: Sacramento Ca
2006 Honda CRF250X
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| Posted: Mon Dec 19, 2011 12:45 pm Post subject: |
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What year bikes are we talking? Yes generally speaking the 230 engine will bolt right into the 150 frame using the 230 upper engine mount. The 230 cylinder is taller than the 150 cylinder. You would also need the wiring harness and the battery/airbox from the 230.
Yes the crank and top end will bolt right onto the 150 bottomend. Again the 230 top mount issue. The 5 speed 230 sounds appealing but now you have an even worse issue with suspension: more power less suspension to soak up the terrain.
If you are talking pre 06 150 you have the added benefit of a kick start 230 minus the starter and battery weight. Mike Coe makes a beefier kick start gear suggested with this modification
If you have an 06 or later 150, Engines Only makes a 225 kit that is supposed to be really good.
Others have done the swap. Do a google searchon the project for more detailed info.
O.D. |
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Thumper40
Joined: 21 Nov 2011
Posts: 3
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| Posted: Mon Dec 19, 2011 1:39 pm Post subject: |
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Thanks for the info! The suspension isnt much of a problem I have a works shock and bbr springs in the front, which do the job. Im looking at buying stock parts before bbks because of the added reliablilty. And the airboxes and batteries wont work with both, and will I need a bigger carb?
Thanks |
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