gnyce
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- Joined
- Nov 29, 2015
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- north of Philadelphia PA, US
Throwing this out there to those mechanically-inclined as this is out of my depth/experience to-date. Short form, working on a project, a 1990 Yamaha FZR600R. Condition was unknown, but I liked the backstory and I love the look of these bikes, plus it was cheap. Have it turning over/running, but discovered a possible transmission issue. There is a knocking going on, slight in 1st gear, more in 2nd, very noticeable in 3rd. It has a new chain (installed before discovering this issue), and I just replaced the clutch friction plates and springs. This has improved 3rd gear - before the clutch plates, it was basically unusable - sounded like a steel ball in a spray-paint can - but now you can actually get into 3rd. Transmission access is a 'drop the engine/crack the case' operation. Shift cam and forks can be reached from underneath (through oil pan). Interestingly, the bike came with a 2nd engine - again, condition unknown - so maybe I try swapping and see.
Video illustrating here: any/all thoughts welcome.
Video illustrating here: any/all thoughts welcome.