What do these parts do? (Gen 3)

Oh almighty VFR gods:

What is the purpose of the parts circled in red in the picture?


They are bolted to the inside of the RH case cover, opposite the clutch basket.
Do they serve any useful purpose?
I'm gonna ditch them if its just a baffle or something.

 

That is very interesting and I'll admit that I don't have a clue as to what they are for either... Even looking at the part descriptions/names you don't get any information pertaining to what they are for. I too would like to know just for knowledge.

The only thing that I can think of is that they are protection for the engine in case you lay the bike down and rash a hole in the side cover. The seals around the bolt and that plate cover would prevent oil from leaking out... and debris from getting in. That is the only part of the RH case cover that would take damage if the bike were to go down. This would let you still ride the bike home if there was damage to the cover, but not detrimental to the bike.

On a second thought, could it perhaps simply be added weight to the bike with a purpose? The weight there could balance something out left to right so the bike isn't heavier on one side... who knows.

From just seeing it on the microfiche, it sure doesn't seem to serve any mechanical function whatsoever and is just dead weight. GL on getting your answer and hopefully I will learn something in the process.

 

I always assumed it was for noise suppression but do not know myself, it is common to motorcycles of all brands.

 

tinkerinWstuff, Damn, and here I've been putting oil in hole #8 all this time, duh!

 

its the plate r. cover.

and no its not for noise supression TOE... jeez, dont you watch southpark? We want MORE noise.
Brubbrubbrubbrubbrubbraaaaaaaaaaaabrubbrub.

 

That's not a complete picture, gezzz guys, its the clutch basket main plate. only thing is it's missing all the clutch plates and springs. pretty poor drawing if you ask me. look it up in the shop manual for a better explanation, no I wouldn't discard anything in there..

 

you forgot the brubbruuuubbrubbruuuuuuubbruuuubbru.

 

Did that little kid just call me a fag?

 

Well, it might protect the case if the pressure plate spring bolt(s) backed out for some reason. Other than that or noise suppression, ??? Are parts 4 & 5 made of rubber, by any chance? Is so, that would seem to indicate noise/vibration dampening, as Toe Cutter pointed out.

 

THAT'S a great question, Brent !!

Like TOE, i thought they were for sound and vibration damping, but who REALLY knows??

 

They are both rubber.On some Yamaha's it is a solid disc of rubber .Always thought it was to help hide basket chatter at an idle but like I said , just a guess.

 

I think the true quesstion is: What Part Is THIS?!

 

That would be the part making all the noise and vibration, which could only be dampened by a de-fluxing inductor. Oh, mounted with a rubber washer, of course.

 

Assholes

I will not sleep until I know.....thanks..

 

Exhausts aren't the only things that make noise on a motorcycle,clutches do too.

TOECUTTER is right,those parts are for sound suppression. Here's a pic of the parts that used to be bolted to the inside of the magnesium clutch cover on my RC51.




It's a very common mod among serious speed junkies to remove and $hitcan those parts,then grind off the bolt mounting bosses on the inside of the clutch cover to shave off a little more weight.
Of course now,I personally wouldn't know any of those kinda guys because there aren't any of them around here.ound:


BTW-Lgn001 made a good point. The other half of the mod is to put a generous drop of Blue Loctite on the pressure plate spring bolts as a bit of extra insurance to keep them from backing out.

 

Ditto. Noise reduction parts.
names & part #'s:
3: PLATE, R. COVER
198403-001
4: RUBBER B, R.
198415-001
5: RUBBER A, R.
198453-001
xxyz: Compresssion, Flux