hi ,

am looking for a bike engine to drop in an existing road going se7en,

Is it an easy job to cut down the bike loom to leave only the engine wiring and take out all the other stuff like lights, indicators horn etc and use my existing wiring for this?

any advice appreciated

I did exactly this with my blade loom. Its a bit daunting at first as you start hacking through various wires, but as long as you strip off all the loom wrapping, and have a good wiring diagram to hand (Haynes Manual) then its all pretty straight forward.

Chris

Cheers Chris,

or would it be easier to use the switchgear from the bike for the lights etc?

I think it would be easier to use your existing switch gear for lights etc.
Its no trouble to strip the bike loom and keep the bits you want.

So is it easy enough to wire it up to a non bike ignition switch? assuming i dont get the switch and the keys with the bike.

Yep easy enough to wire up to any old ignition switch (although mine has got the blade one). If you have a 98-99 blade then you'll need to wire in a 390 ohm resistor from an ignition feed to the pink wire as the standard barrel has an "immobiliser" built in which is the equivalent of a 390 ohm resistor (mucho high tech! ). If the ECU doesnt see this resistance on it, it wont fire.

Regarding lights, I made up my own looms for all the lights, although that is a bit more of a pain working out what relays etc you need. You can use the bike loom for some of that too if you wish, but you need to add hazard warning and fog which the bike loom doesnt give you, so indicators and fog will have to be seperate anyway, although is this a conversion from another engine and you already have all these in place? If so then stick to whatever you already have, there's no requirement for any of the lighting side of the loom to be present for the engine to run.