Two concerns...

Hi, folks. I'm a relatively new owner of an old Maxim ('82 XJ750J). I bought the bike a couple of months ago from the original owner. It had been stored since '95 and has just over 15k miles on it.

My 1st concern: How do I remove the handlebar stopper bolt? I'd like to change the horizontal adjustment of my bars. The factory manual says to remove the handlebar cover, bolt cap (broken off), handlebar stopper bolt, and handlebar pinch bolt. The stopper bolts are round with no apparent contact points for a wrench. Do I use vise-grips or such and mangle these things or is there another way to remove them that I'm not seeing?

Second concern: The engine starts easily and runs fine when warm except for an apparent flat spot when cruising at lower rpm (below 4,000 or so) and minimal throttle opening. If I nudge the throttle, power comes on quickly and acceleration is strong up to redline. In a fuel-injected vehicle, this would be called a 'tip-in' flat spot. Unfortunately, I understand FI far better than I do carburetion. Is there an off-idle or partial throttle circuit I should be looking at or is this a sync issue? Response is largely instantaneous when I crack the throttle.

Any help would be appreciated.

 

Handlebar cover: Nice looking plastic part -- middle of bars --- most have raised lettering with "Yamaha" ... it just snaps-on there ... you pull it off.

The pinchers have little plastic "Beautiful Caps" ... pushed into the hex's of the concealed cap screws holding the caps to the steering head.

Nothing we've done, so far, requires vice grips!!!

You will need the Allen wrench -- it will be hiding somewhere on the bike with some other tools.

 

Thanks for replying, but what I'm asking about are the handlebar stopper bolts that thread into the triple clamp. The pinch bolts thread parallel to the triple clamp, through the bar, and tightens the handlebar around the stopper bolts (the ones I want to remove).