OzVMX Forum

Clubroom => Tech Talk => Topic started by: cwanedwiver on January 02, 2023, 07:24:49 pm

Title: 1975 RM 125 FORK QUESTIONS
Post by: cwanedwiver on January 02, 2023, 07:24:49 pm

Hi All, got a couple of fork questions if anyone can help

1975 Rm 125 fork oil capacity  or fill to 6 inches below with forks depressed and no  springs

How much air psi can i put in them as they have air caps

Cheers

Title: Re: 1975 RM 125 FORK QUESTIONS
Post by: sleepy on January 03, 2023, 04:59:54 pm

What model is it? RM125M and S were 1975 but from memory didn't have air caps standard. RM125S owners book list 210cc of 10w30 or ATF oil.

Title: Re: 1975 RM 125 FORK QUESTIONS
Post by: cwanedwiver on January 04, 2023, 08:09:39 pm

Thanks Sleepy, yeah its an "s" but somebody before me has put air caps on it

Title: Re: 1975 RM 125 FORK QUESTIONS
Post by: sleepy on January 05, 2023, 07:54:52 pm

I think I did that to my "S" back in 1975 as an experiment. There were kits around to convert spring forks to air forks and from memory they ran up around 30 psi. You could use anything up to that but if the spring is a bit week are the rider is a bit heavier than the 60kgs Suzuki ideal rider. Start with 10psi and see how it feels.