Richard Tool
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- Joined
- Aug 3, 2019
- Messages
- 1,419
scaredy cat !And if I do ride it… and don’t like it… I’ll pro’lly jus’ keep quiet cuz I’ve seen how y’all beat up thoze guyz !
scaredy cat !And if I do ride it… and don’t like it… I’ll pro’lly jus’ keep quiet cuz I’ve seen how y’all beat up thoze guyz !
I think it’s the primary gears there straight cut but I am sure they could get them better by better tolerancesIf you mean production tolerances between identical engines, then I do not believe that CR differences would be sufficient to cause noticeable differences in engine vibration.
Good point and thats another reason for the noise as well as the vibration that some experience..I think it’s the primary gears there straight cut but I am sure they could get them better by better tolerances
Well you’re just showing off … !Mine is quiet
And I guess it’s just luck of the drawWell you’re just showing off … !
Banana skins and cheese cloth !Mine is quiet
Indeed!The gentle whirring and mild chattering of NORMAL straight cut gears is NOT the clattering and banging that worries people I can assure you.
Folks would greet me as I pulled up saying ‘sounds like your big ends gone mate’ !
Yes and we were told on here somewhere that both Ollie and TVS were investigating improvements….Indeed!
If you own a Jap sportbike, and I've owned many, with the stock-super quiet exhaust system, you can hear the primary gear whine when revving the engine. They also use spur (straight cut) gear drive in their primaries. Nothing untoward about that sound.
The grinding, or slapping noises that some 961 engines produce are another matter entirely. They would seem to indicate that something is not quite right in the motor. I have never seen any gear driven primary with an intermediate gear other than the 961's. That is where I would focus the attention of my engineering staff. If I intending to keep producing the 961 into the future, I would re-design the crankcases, and drive the balancer shaft off of the timing side, and eliminate the intermediate primary gear all together.