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Old February 9th, 2020, 08:21 PM   #20
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by Jaymod View Post
Was thinking of building my motor, but this seems like a better idea.
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Extremely difficult and expensive to build up 250 engine for most people without their own machine shop. You're looking at couple grand total at least (or more). Need big-bore pistons and lots of machining to fit those pistons. Also need bigger carbs and lots of dyno-tuning. Highest we've seen is about 46-bhp and not sure how long that engine lasted.

For $200-300 you can pick up 60-bhp EX500 engine and carbs. Or better yet, aftermarket EFI system for $300-400 more.
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