Silly xj650 questions

Apologize if this has been answered but searched some and didnt find an answer. I have a 82 xj650 seca and possibly going to buy a airbox off a maxim. Will it fit?

Also am curious if I can swap the real wheel assembly and shocks of a xj750 to my 650. Thanks. New xj owner here.

 

Yes, as long as it is a 650 Maxim.

They will physically swap, but the Maxim used a 16" diameter wheel, and the Seca models (both 650 and 750) used an 18" rear wheel.....so you'll have quicker acceleration but a lower top speed. The Maxim wheel is also wider (3") vs. the Seca wheels (2.15").

 

Awesome thank you so much!

 

and additionally you will slow your steering response as it lowers the rear of the bike about 3/4", effectively increasing steering rake.
The forks could be raised in the crowns 3/4" to compensate.

 

I could swap just the rear shocks tho with no problems I hope

 

Umm, fellas... he's putting a 750 rear wheel onto a 650 Seca (not onto a 650 Maxim).
The rear wheels are the same for all three models (650 Seca, 750 Seca, 750 Maxim).

 

750 Maxim has 16” rear

 

I have a 82 650r seca. The donor bike is a 750r seca. They both 18 rear tires. But I was seeing if I could straight swap em. And shocks...

 

I wouldn't think the gearing is different....but I could be wrong

 

Ideally I would like to swap the whole rear with tire to the 650 and front forks wheel and calipers to the 650.

 

Yep. thanks for the correction.

 

The gearing isn't different, but then you won't be swapping the final drive anyway.

 

Why?
That's a lot of work for no real gain (unless you want the anti-dive, in which case you're better off restoring the 750).

 

The 650 has a title the 750 does not The 650 has sat for a long while the 750 has not The 650 runs The 750 motor is blown If the front wheel , calipers and forks are direct swap I dont mind the work If the rear final drive shaft and wheel and shocks are the same and direct bolt up then again I dont mind the work I jus am making sure before I pull em apart ya know. Thanks to everyone so far who have been good info!

 

Regestering it in Vermont is fairly painless (you don't have to live there), relatively inexpensive, and is a path to a clear title in all 50 states.

Unless the 650 final drive is broken you won't need to swap it or the swingarm fror that of the 750. The rear wheel is the exact same part (assuming you have a 750 Sec) as on your 650 Seca.
In fact all Yamaha shaft drive wheels are direct physical swaps as far as the splines and axles are concerned.

 

It's not a matter of if it needs to be swapped I am asking if I can swap it with direct fitment. The 750 parts I want off the bike are for 1. they look better and for 2. are in better condition than the 650. So that's why I ask....... putting in the work for the swap doesnt matter to me as I love to tinker So.....will the front forks. Wheel. Calipers Rear shocks rear wheel assembly from a 1982 xj750r seca direct swap to a 1982 xj650r seca with no adverse effects??

 

All those parts are a direct swap, except that the shocks might be a tad longer (not enough to matter), and look different.

The reason why was asking is that the Seca 650 is a lot more collectable than the Seca 750 is.
Smart money is to restore the 650, but so long as you limit modifications to bolt-ons it can all be reversed one day.