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Fork oil/seals change

PostPosted: Thu Nov 06, 2008 4:22 pm
by nikitino
Has anyone ever changed the fork oil on a Country 500? I plan on trying to do this soon and also changing the fork seals since both shocks are leaking. But, not sure what parts to order as far as the seals go and then also not sure what weight of shock oil or how much to put in....thanx in advance for any advice on either procedure.

Re: Fork oil/seals change

PostPosted: Thu Nov 06, 2008 8:00 pm
by MZCountryRider
nikitino wrote:Has anyone ever changed the fork oil on a Country 500? I plan on trying to do this soon and also changing the fork seals since both shocks are leaking. But, not sure what parts to order as far as the seals go and then also not sure what weight of shock oil or how much to put in....thanx in advance for any advice on either procedure.


I asked the same question about fork oil and quantity a while back on the MZOG and here was the reply I got:

"colm54" <colm54@...> wrote:
Fork oil is 230cc per leg, fork oil sae 10. You might find when braking that the 10 weight oil is like riding a pogo stick and that using 15 weight it is less prone to diving."

A friend used the recommended 230cc of 15 wt. in his Tour and reports less dive and bounce. He installed fork seals meant for a Moto Guzzi: part number 90403449, double lip fork seal, V7Sport/LM1-3/T/T3/Convert/SP1000/Cal2/etc. $8.35 ea. from here:

MG CYCLE, 601 Ogden Ave., Albany WI 53502. Phone: 608-862-2300, FAX: 608-862-2015, Toll Free Order: 888-464-2925 (888- 4-MGCYCLE), EMAIL info@mgcycle.com Business Hours: Monday through Friday 9am to 5pm Central Time

Re: Fork oil/seals change

PostPosted: Fri Nov 07, 2008 5:43 pm
by manumensa
¡Hello Nikitino and MZCR!

I want add more information.

MZ "Rotax" models manual :
- Country: normal level 250cc. and maximun 270cc.
Other MZ 500 230cc and 250cc.

- Oil fork: SAE 10 , SAE 15

- Main spring wire 4.5mm, 73.5 winds, lenght 527mm (for side car) MZ spare number 22 39 105 .

Fork oil seal: D 35x47x7 . I can´t read it in the Manual but is the size for 35mm MZ stanchion and I think 35 mm Moto Guzzi also.

Saludos, Manuel.