Well spotted that's exactly what it is in fact I think it has come from a voyager as I found out when I went to connect the tachometer I had to set up an electronic one. My friend replaced the engine on his bike about 25 years ago and I got the bike from him after it was lying for 20 years with engine damage and a q plate, I also got a Canadian frame which I have used so I have based my bike on an A4 but the engine is different , doesn't bother me, I had one in 1986 and haven't ridden one since so it should be interesting. I am wondering how it will feel compared to my Rocket 3.
Z1300 A4,Z900 RS,Suzuki GT750A, Buell S1 Lightning, Royal Enfield Diesel. And Z900A4 on the rebuild.