What is this bike ?

Hi, I'm new here, I'm hoping someone here will be able to help me, I ended up with a old yamaha 900 , I'm only asumming it's a xj ,but it' is a chain drive and I can't find any information about it ? They all seem to be shaft drive ? Am I missing something? I was going to do cafe/bobber project but now I'm thinking it might be of a waste of rear bike for that

 

I think that 898 you see on the block is really 398. Give it a scrub and post a new pic

 

Looks like it's an XJ400 as the engine size is 398

Here's a good info page that may give you a clue:
https://www.motorcyclespecs.co.za/model/yamaha/yamaha_xj400 Special.htm

Also, if you look at the engine (top of clutch cover) the engine # will help with model identification.
It'll be three digits, then six numbers.

Tony

 

Can't tell if it's a twin but if it is, it must a Maxim 400 looks like the one my buddy had in high-school.

 

Thanks heaps guys, and yes I should have cleaned up the label better, turns out It is 398cc , but it's ok , as I just wanted it for my wife to learn on and a project for me and the boy.
Thank you for that.

 

TECH TOPIC: Model ID and VIN's

 

Yamaha XJ400 Maxim 4 inline.. i got the seca XJ400E seca YICS

 

have a look at the engine and frame number, mine starts with 4G0