Re: I just wanted a new transmission...

Posted by pwbcktftii on Dec 02, 2012; 12:35am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/I-just-wanted-a-new-transmission-tp4032820p4032960.html

Certainly, Conventional engine oil is not made to deal withe the extreme pressures developed by MC drive chains unless in an oil bath. So what happens is the motor oil flys off the chain & does no good to lube the chain. Especially at highway speeds. I personally use PJ1 chain lube & here's why. PJ1 has a catalyst in it that evaperates in 15 minutes, when it sprays out it's like WD40 & soaks in everywhere. It leaves a film of lubrication that has the consistancy of tar. It does not come off while the chain is moving. I have used it since the 80s myself. FYI my 630 o-ring chain on my '76' CB750K6 (78 engine) has lasted over 10 years. It is recomended to lube the chain when hot & every 200 miles (2 full tanks of gas). This is so the pores in the metal will be open for the lube. Also be aware that PJ1 is available in an o-ring formula (blue can) & a regular chain formula (black can). There are other brands that do the same catalyst thing. I have tried a product called chain wax. It's not as sticky as PJ1 & comes out as a foam. Just a note I have had over 24 CB750s, with 18 left. I have 2 tourers, 3 choppers, 1 cafe, 1 I made into a dual purpose bike (on road - off road), 2 SS, 1 A & the rest stock Ks. I do all my own work except bore cylinders (don't have the tool). I just finished a ground up rebuild of a '76' SS for a buddy of mine. I welcome any other questions you may have.