Question about 2002 Buell M2 Cyclone

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Blow-by of the left front fork 'seal' (Honda M/C 1981 cm400c)\r\nI also own 1980 (same) but it doesn't have the 'air' added on top like this '81. . . 1) question: ` Could I just drain the fork oil & replace with heavier weight, like s.a.e. 30 fork-oil, and not add 'air' and see if that works. Or do I need to replace the seals (both sides ?). . . . Is it an easy job, or will I need any special tools ? ~ thanks

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Probably the reason the fork seal is blown is too much air pressure. Definitely fix the seal and put in the correct amount of oil. You do not have to put air in to the front forks if you do not want to. To properly set up your suspension, set your rear shocks first, hard for two, soft for one, etc. Now load the bike, you or you and the passenger. With the front forks set to near max pressure (only 12 to 14 pounds air pressure do not go over max recommended pressure) bounce on the motorcycle seat and bleed off the pressure in the front forks till the front and back of the bike drop together. This is the correct way to set up your suspension. A bicycle foot pump with a pressure gauge works best works best. You will be near max pressure in one small hand squeeze of the foot pump. You will find it only takes 7-8 pounds of pressure to set up your bike. Just remember, You do not have to put air pressure in to your front forks, they will work just fine. You just wont benefit from the adjustable design.

Posted on Sep 10, 2010


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