Hi Guys,
As said on the intro thread i created, i have a 1990 3he that Grenaded itself, and now has 2 large holes in the engine casings, and got knows what internal damage.
Will 4JH or 3EN engines drop straight in without having to mess around with shimming/modifying anything?
Cheers
Chris
Engine Compatibility
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Engine Compatibility
1990 FZR 3he (UK Spec)
1994 FZR 600 3he (US Import)
1994 FZR 600 3he (US Import)
Re: Engine Compatibility
Hi, Chris - welcome to the madness!
The 3EN will bolt in - I think. Certainly, the 1WG is a straight swap, but it's usually the other way around. Going from a 600 to a 400 is a significant reduction in power - not that a blown engine is cranking out that much!
The 4JH is straightforward but involved. The TCI of a 4JH cannot read the crank signal pattern of a 3HE, and vice versa, and the connectors are completely different, so some wiring work is needed. Also, the sprocket is slightly offset.
What you do next depends on what you find inside. You may want to investigate the possibility of a 660 conversation.
The 3EN will bolt in - I think. Certainly, the 1WG is a straight swap, but it's usually the other way around. Going from a 600 to a 400 is a significant reduction in power - not that a blown engine is cranking out that much!
The 4JH is straightforward but involved. The TCI of a 4JH cannot read the crank signal pattern of a 3HE, and vice versa, and the connectors are completely different, so some wiring work is needed. Also, the sprocket is slightly offset.
What you do next depends on what you find inside. You may want to investigate the possibility of a 660 conversation.
1989 3LN1 FZR250R, currently stock.
TTR Ignition Systems
TCI Repair and Ignition Transistor Upgrade
VRR Adaptor Harness
YZF600 TCI Adaptor
Running Light Fuse Carrier
TTR Ignition Systems
TCI Repair and Ignition Transistor Upgrade
VRR Adaptor Harness
YZF600 TCI Adaptor
Running Light Fuse Carrier