How to check and see if a bike has had an engine change?

0l0dom0l0 · World Chat Champion Joined: 21 Oct 2009 Karma :

Hi,

Anyone got any idea how to see if a bike has had an engine change at any point by checking the engine number?

Thanks,

Dom
____________________
CBT Passed: 30/08/2009, Theory Passed: 31/08/2010, Mod 1 Passed: 6/9/2010, Mod 2 Passed: 13/09/2010. Restriction ended 13/09/2012.

Bikes: 2007 Derbi GPR 50, 1998 Yamaha Fazer 600 (written off), 2002 Yamaha Fazer 600, 1994 CBR 600F, 2003 Triumph Daytona 600, Kawasaki ZX6R J1.....Current: 2006 Yamaha FZ6, 1998 Suzuki TL1000R and a Honda VFR 400 NC30.

WD Forte · World Chat Champion Joined: 17 Jun 2010 Karma :

As long as the engine number is the same as the number in the log book and its a good engine, I wouldn't bother too much.

I have known of some owners clubs where the engine number series was mapped out by model/year/revisions etc
but it felt like an anorak too far to me.

If that's your interest, an owners club site or forum for the model of bike you have may help
____________________
bikers smell of wee

Doomsnite · Traffic Copper Joined: 19 Nov 2013 Karma :

If it doesnt match the V5, then its been changed
____________________
Triumph Street Triple-R
Sold: Honda Hornet CB600F-Y / Yamaha YBR125

_Iain_ · Banned Joined: 01 Feb 2012 Karma :

pdg · World Chat Champion Joined: 15 Sep 2012 Karma :

STONEY! · Brolly Dolly Joined: 14 Sep 2005 Karma :

I've had countless bikes where the engine number didn't match the v5, most of which had obviously never had an engine change just the usual dvla fuckwittery.

I have also had bikes where the frame number is in the engine number section and vice-versa.

My favourite V5 I have seen so far was

Make: T
Model: A
Chassis no: 01
Engine no: not known
Colour: Multicoloured
Tax Class: Historic

this was for a homebrew wooden pick up truck

1cyl · World Chat Champion Joined: 04 Feb 2004 Karma :

Both my road legal pit bikes naturally had engines that didn't match the V5's:

The Masai had a stomp engine swapped in, so I new it wasn't going to match before I even purchased.

The Stomp had its original engine but it didn't quite match the v5, as some of the engines numbers had obviously been wrongly observed when it was issued. 1's instead of I's etc Brick Wall

.

In answer to your question. I suppose you really can't be 100% sure unless you bought the bike new.
____________________
Chase my Witch up, Catch my Snitch up.
The SMC | The Pit | Stable