GF250 - Removing and restoring the battery cradle

Why: When I bought my second-hand GF, it was obvious that the battery had leaked at some time in the past. The cradle was starting to rust on much of its inner surface, and I knew that with such thin/lightweight metal this could not be ignored.

Disclaimer: This is what I did.... if you follow  these instructions I won't be held responsible for any problems you encounter or damage that results....

Procedures:

1. Remove seat and side-panels to expose battery and surrounds

2. Make sure to disconnect the EARTH terminal first, before proceeding further (this will eliminated risks of sparking etc.)
GF250 battery cradle - step1Then remove the positive terminal, and the battery breather hose. You could now choose to also undo the bolts holding the starter relay bracket to the battery cradle, if you have a right-angle Philips screwdriver or other appropriate tool - otherwise, wait until you can lift the battery cradle to gain access. Remove the battery, taking care not to spill any acid!!! ( Use a cloth or gloves when handling batteries).
 
 
 
 
 
 
 
 
 
 
 

3. Remove the bolts holding the battery cradle and seat rubbers to the top frame rails
( half visible in this photo, on the outer edges). Store the bolts and special washers (which sit between rubbers and frame) carefully.
Undo the side mounting bolts (one each side of the cradle, only accessible when battery removed), and again , store the bolts and special washers.
 
 
 
 
 
 
 
 

4. Remove the bolt holding the toolbox to  the battery cradle (on right hand side) and pull the tool box out.
Then undo  the bolt holding the rear brake fluid canister to the cradle and push the canister carefully out of the way. The battery cradle can now be carefully extracted with a bit of juggling.....
 
 
 
 
 
 
 
 
 
 

5. The rubber grommets should be carefully pried out of their holes with a thin but blunt or soft tool.
Note the corrosion, especially around the base, visible once the thin foam pads have been carefully removed.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

6. Clean off all oil and dirt, then remove only loose rust and paint with a wire brush.

 
 
 
 
 

7. Apply an appropriate rust converter, following the manufacturers directions....most of them contain phosphoric acid, so DON'T drop any on your cement garage floor.
The firm rust will be converted and turn black.
 
 
 
 
 
 
 
 
 
 
 

8. Apply primer with spraygun or can.

 
 
 
 

9. Apply paint with spraygun or can.

 
 

You now have a cradle probably better than new (why don't  these manufacturers ever seem to use primer??!! -it wouldn't add much weight to the bike!!).

10. Replace rubber grommets in cradle, and reattach foam pads in cradle, using appropiate adhesive ( I used builders adhesive)

11. Replace cradle, then battery,  in bike by reversing the dismantling procedure above. Note particularly the way the special washers are reassembled. Reassembly will be aided by PARTIAL insertion of  all the four mounting bolts before any are tightened. If your bike is prone to vibration, consider using a lightweight locking fluid on bolts that don't have lock-washers when reassembling.

 
 
 
 
 
 
 
 
 

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