High-G FJR Junkie!
Join Date: Jan 2013
Location: Millgrove, ON, CA
Well, maybe a time to put away the impact gun for 2013-15 and use a cartridge tool, but I tend to discount that a bit too... the lower cartridge bolt is held in by the copper washer resisting the bolt loosening, and when installed is pulling the cartridge valve tight against the bottom of the fork... the resulting sandwich is oil tight, no leakage or loosening.
When you use a regular ratchet say, the moment the bolt is backed out a turn (or less), the cartridge moves away from the lower fork and simply, nothing to hold the nut (the cartridge) from spinning, the bolt/copper washer is loose, all spins together. Preloading the cartridge at the fork cap end helps, but sometimes our undersprung forks can't hold it. The idea of the impact wrench is pure speed to get the bolt backed out as fast as possible.
SO..... how does that break a cartridge valve... head scratcher. So let's say we use a cartridge holding tool... how are the forces on the cartridge valve any less... dunno, but, let's use a cartridge holding tool from now on with those years.... I will take a look at the next one I have apart and see if it is any weaker than Gen2.
The 2016 is a cheaper (wrong word?) less complex design, however, the cartridge valve is up into the cartridge more and crimped inside the tube rather than threaded.
As for loctite on that lower screw... haven't seen it on FJR's, however in the old days some manufacturers said to use it. Mistake to do that, really, if you do then you willl definitely need a cartridge holding tool. No need, that copper washer will hold it much like the crush washer on your oil pan bolt or spark plug.
Keep yer stick on the ice....
2014 FJR1300A - Root Beer (sold)
2009 CBF1000A - Sienna Red
1999 VFR800Fi - Pearl Shining Yellow