M1R parts & modification/Service

Laverdalothar

Laverdalothar

Hero member
Location
Germany
For those 1000 SFC owners that are not 100% satisfied with the M1R, I have a good hint...

Many - just as mine - of the Laverda M1R had only one slider bush at the top of the Fork slider. Some had one more at the lower part of the stanchion.

I always wondered why my fork was so bad - until I dismounted it... mud everywhere, especially in the compression damping unit. BTW: if you take the M1R appart, there is a big alloy part sitting at the lower end of the right side fork slider (the one where the adjustable compression valve sits on). You can push that out to clean it and everything below by using a piece of round material which you use to push this round thing up from the bottom side of the fork slider.

Anyway: what I wanted to report about: there is hope regarding the slider bushes. BMW offers fitting ones from the K1100LT from early 90's ( 1991 - 1994 I think). Examples are here:

https://www.bmwbayer.de/de/Fuehrungsbuchse-Standrohr-BMW-K4V-Modelle

https://www.bmwbayer.de/de/Fuehrungsbuchse-Tauchrohr-BMW-K4V-Modelle-31422310347-


you can buy them from your local BMW shop. Sure they cost a bit but be sure, you will recognize the difference...

If you need the manual for the M1R, I can send you a link to it, no problem.  ;)

However, the most critical part of the M1R Fork service is to get the Oil-seals out.

DON'T USE THE UPPER SIDE OF THE FORK SLIDER TO LEAN YOUR SCREWDRIVER AGAINST AND TRY TO BREAK THE SEAL OUT!!!

All you will break out is a part of the upper fork slider! Excactly what the DPO of my bike did...  >:D Cost me 250? to fix it... So - please dont! Use an according puller or any other method, but not the screwdriver against the sidewall of the fork slider method, please!
 
hi jim,

interesting kit, but considering all the other parts and the work involved, I can get the whole fork reworked and turned internally to compression, rebound and preload adjustment locally here for roughly 950? (850 for turning it into a cartridge system, another roughly 100? for the above mentioned slider bushes). See:

https://translate.google.de/translate?sl=auto&tl=en&js=y&prev=_t&hl=de&ie=UTF-8&u=http%3A%2F%2Fwww.hh-racetech.de%2FHH-Race-Tech-Gabelkit-4%2F&edit-text=&act=url

you could also try to source these: http://www.andreanigroup.com/products/motorcycle/105%7CG05/?Andreani+Adjustable+Cartridge+Kit+for+Moto+Guzzi+Daytona+1000+%28Marzocchi+41%2C7+mm%29+

you might need to adjust the length a bit to fit to the 1000 SFC though...
 
sure. But while you are at it, make sure you also use the slider bushes from BMW. They are much better than the plastic ones from Laverda/Marzocchi...

I haven't found them yet, but if there are these low friction SKF green fork seals available in the size fitting to the M1R, I would try them.
 
Laverdalothar said:
sure. But while you are at it, make sure you also use the slider bushes from BMW. They are much better than the plastic ones from Laverda/Marzocchi...

I haven't found them yet, but if there are these low friction SKF green fork seals available in the size fitting to the M1R, I would try them.
Click to expand...

I have some green fork seals ......... I'll have to look and see who makes them.
 
There, as usual, doesn't appear to be any for 41mm M1R but other kits might fit.
http://www.jwtimports.com.au/downloads/SKF-Fork-Seal-Measuring-Guide.pdf
 
unfortunately it is not in there...

the size is  41,7 X 55 X 7,5

41mm inner diameter wouldn't be that bad, but almost 1mm less outer diameter means the seal might move and not be oil-tight...
 
You must log in or register to reply here.
Back
Top