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DannoXYZ · January 22nd, 2020, 03:49 PM

Hey, awesome video!

Not sure why it’s shunned, doubling power to 60-bhp with just 20-lbs weight-gain is great upgrade. You’re still 40-lbs lighter than EX500 in street trim or 100-lbs light in race config. And you get faster-than-Ninja-400 speed without having to deal with EX500’s wet-noodle frame and Cadillac touring suspension settings.

Part of disdain probably has to do with how it’s been done previously with hacking up frame and rewelding motor-mounts. Along with flared-out bodywork zip-tied together due to using EX500 exhaust.

Here’s my recommendation for no-cut EX500 swap:

1. Motor supported by factory mounts using spacers in rear. One conversion was done this way about 6-yrs ago. You can weld-up an adapter piece that connects front of engine to bottom of factory mount. Much cleaner looking and 100% reversable. Not sure why anyone would want to go back to 250 anyway. Just cleaner from design and implementation POV to not chop up frame.

2. Custom exhaust 2-1 header. Similar to new-gen’s exhaust and run it past oil-filter underneath engine. Be sure to give filter enough clearance so it can be removed. Running exhaust under engine like 250 lets you put factory bodywork back on.

3. Connect 250 tach to left coil like in 250. Connecting it to igniter like in 500 will give you incorrect RPM readings.

4. Use 500 radiator. Make some custom mounts and attach to factory motor mounts like with 250 radiator.

Looking forward to seeing more of your project!

January 22nd, 2020, 03:49 PM	#2
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	Hey, awesome video! Not sure why it’s shunned, doubling power to 60-bhp with just 20-lbs weight-gain is great upgrade. You’re still 40-lbs lighter than EX500 in street trim or 100-lbs light in race config. And you get faster-than-Ninja-400 speed without having to deal with EX500’s wet-noodle frame and Cadillac touring suspension settings. Part of disdain probably has to do with how it’s been done previously with hacking up frame and rewelding motor-mounts. Along with flared-out bodywork zip-tied together due to using EX500 exhaust. Here’s my recommendation for no-cut EX500 swap: 1. Motor supported by factory mounts using spacers in rear. One conversion was done this way about 6-yrs ago. You can weld-up an adapter piece that connects front of engine to bottom of factory mount. Much cleaner looking and 100% reversable. Not sure why anyone would want to go back to 250 anyway. Just cleaner from design and implementation POV to not chop up frame. 2. Custom exhaust 2-1 header. Similar to new-gen’s exhaust and run it past oil-filter underneath engine. Be sure to give filter enough clearance so it can be removed. Running exhaust under engine like 250 lets you put factory bodywork back on. 3. Connect 250 tach to left coil like in 250. Connecting it to igniter like in 500 will give you incorrect RPM readings. 4. Use 500 radiator. Make some custom mounts and attach to factory motor mounts like with 250 radiator. Looking forward to seeing more of your project!