29-10-19, 10:48 AM
(29-07-19, 09:54 PM)kebab19 link Wrote: From what you're describing, the fork lowers may have worn to an unacceptable level - there is apparently an inherent fault with the Gen 1 forks, with the lower fork cartridge / fork lower wearing against the fork springs and the fork oil then turning to abrasive sludge. There's a great thread about it here on the FZ1OA site (hopefully you can view it without having to create an account):
http://www.yamahafz1oa.com/forum/showthr...+fork+wear
This problem is exacerbated by not changing the fork oil regularly and the wear becomes so bad that you can apparently feel knocking sensations coming through the forks, almost like the head bearings have gone?
If this is the problem you may well have to replace the front forks, whether they be another pair of standard units (risk of replacement forks having the same problem), R6 5SL right-way-up forks as I fitted to mine back around 2011 or early-ish R1 forks. The latter two options usually drop the front-end by over an inch, not necessarily a problem but something else to consider.
Interesting reading, do I assume then that OE forks upgraded by KTEC has completely removed this fault described or is just a temporary fix?