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Old December 20th, 2018, 06:46 AM   #1
BloodFX
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El250 engine swap

Hi does anyone know for sure what engines will fit in my eliminator 250 d4, I've been told that gpx gpz ninja and zzr 250 engines will fit in my bike but would like to make sure?
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Old December 21st, 2018, 11:07 AM   #2
BloodFX
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Theres an ex500 on ebay shall i just whack that in lol ?
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Old December 21st, 2018, 11:50 AM   #3
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yes!

If you can cut and weld metal, making custom mounts will let you swap in pretty much any engine you want! Like those cruisers with Chevy small-block V8s!
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Old December 21st, 2018, 12:45 PM   #4
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money time and ingenuity can get you there

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Old December 22nd, 2018, 05:52 AM   #5
BloodFX
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So does nobody have any info about the 250 engine's for my bike?

Last futzed with by BloodFX; December 22nd, 2018 at 08:22 AM.
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Old December 22nd, 2018, 04:44 PM   #6
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What year is your EL250?
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Old December 24th, 2018, 01:03 AM   #7
BloodFX
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el250 d4 1994
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Old December 31st, 2018, 05:18 AM   #8
BloodFX
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Missing out on loads of engines on ebay just because I can't find out any engine fitment info theres a 2010 engine on there that if it fitted would be perfect, could even start a fi conversion project.
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Old December 31st, 2018, 08:14 AM   #9
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What exactly is the problem with the engine that's in it now?

It's going to be difficult to absolutely say that a Ninja 250 engine will drop right in - but it might. Most likely there would be some differences, mostly in the tuning area where the Ninja would be tuned for more high RPM power.

Still, I would expect that your carbs and manifolds should bolt up, though it may run and ride slightly different due to the mix.

Comparing part numbers of parts like engine cases and such may tell you if the major pieces are the same.
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Old December 31st, 2018, 11:05 AM   #10
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Think the top end is toast, each cylinder is 60 psi and its only firing on 1 and sounds very knocky after it first starts which is like 1 in 40 attempts, also it has 34k miles on the clock.

Also I, m sure its never had a valve adjustment.
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Old December 31st, 2018, 01:02 PM   #11
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I would start by taking things apart and confirming what's going on with the top end. It may not be as bad as you think. Could be possible the valves are way out of spec and hanging open, so you aren't getting compression.

How does the oil look? Drain the oil and look for any bronze colored flakes, which would indicate a bearing failure.

What do the plugs look like?
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Old December 31st, 2018, 01:29 PM   #12
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Good idea! Get your hands dirty working on existing engine. Can't possibly make it worse and you may even fix it! Great practice for engine swap.

Quick internet shows El250 uses same engine as ZZR250. Which appears to same as pre-gen Ninja 250. Perhaps with more friendly tune from cams, carbs, etc. External connections may be different, coolant hoses & such.
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Old January 1st, 2019, 10:18 AM   #13
BloodFX
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Quote:
Originally Posted by jkv45 View Post
I would start by taking things apart and confirming what's going on with the top end. It may not be as bad as you think. Could be possible the valves are way out of spec and hanging open, so you aren't getting compression.

How does the oil look? Drain the oil and look for any bronze colored flakes, which would indicate a bearing failure.

What do the plugs look like?
The oil was rusty brown when i bought it and i bought with the intention of doing an engine swap anyway to get fuel injection project going.

The sparkplug on right cylinder is black looks abit rich and left is brand new because its not firing.

I would like to fix the engine but was gonna do that at a later point.
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