Topic: What is acceptable play for swingarm?

[4onthefloor]

My CB750K seems to have too much swingarm play. What is acceptable and how is it measured? What are the best bearings to use?

[neckyzips]

hey,
i wouldnt think any play would be acceptable, well not any more than a 100dth of an inch and at the end of the swing arm (at chain tension).  as far as correcting the play, if you have excessive play meaning .25 or more of an inch, i would replace the bushings with brass ones, avaliable via dennis kirk, or from a very patient parts guy at a local shop, and insid of the swing arm there is a large bushing that should be replaced as well. there is a guy on ebay selling that kit with a new rod/bolt for 72 bucks, hope that helps.
joe

[4onthefloor]

Do the bushings have to be reamed when they are installed? My only bushing installation experience is kingpins in a '50 Chevy truck.

[bryanj]

You need to look in a manual or possibly parts book. The part that wears most is the sleeve 52141-300-000 the bushes are 52108-300-300 x 2 then there are two hard plastic thrusts which rarely wear and two felt seals 52145-283-000 x 2 which will need replacing. The bolt with the grease nipples in each end dont wear BUT make sure the nipples pass grease 96201-300001 x 2 (press fit on an odd size so not easily available aftermarket) Brass aftermarket bushes may need reaming depending on maker but as usual Honda used a non standard size. The original parts dont need reaming just carefull fitting.