[Grom1202]

Hi, My second gear shift seems noisy, When i shift from first to second there is a loud clunk i can hear it with my helmet on , same noise when i downshift in to second, 3 & 4 gear shifts are almost silent. All shifting done with clutch. Is this normal for grom ,, shifts fine no problems .. bike has almost 600 miles in 1 WEEK. I love this bike...:in love:

 

[SouthernGrom]

Might sound dumb but have you adjusted your chain yet? Once I tightened my loose ass chain, all clunking went away.

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[Grom1202]

I adjusted the chain today. It shifts fine, It just seems 2nd gear is much louder than others,

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[gromathon290]

The jump from 1st to second is a longer throw on the shift drum and detent since it also has to pass the neutral slot on the detent. (The little star looking piece that actually turns the shift drum) that extra movement makes more noise than the single click between the other gears. In closing...the noise you're hearing is totally normal. It doesn't help that the stock exhaust is so quiet that you can hear every little sound the motor makes which can sometimes be a little scary if you don't know much about what's going on between those engine cases.

 

[Grom1202]

Awesome... Thank you.

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[YYZGROM]

I just noticed this as well on mine... I was hearing something 1-2nd makes a clunk and vice versa... all other gears sound smoother.
I was doing a search and came across this thread.

Did you do anything since? Chain and or clutch adjustments?

Thanks,

 

[BuenosNoches]

The jump from 1st to second is a longer throw on the shift drum and detent since it also has to pass the neutral slot on the detent. (The little star looking piece that actually turns the shift drum) that extra movement makes more noise than the single click between the other gears. In closing...the noise you're hearing is totally normal. It doesn't help that the stock exhaust is so quiet that you can hear every little sound the motor makes which can sometimes be a little scary if you don't know much about what's going on between those engine cases.

So many noises that I am not used to hearing. Every time I ride, i convince myself my Grom is about to break because of something I did wrong. Scary as hell!

 

[Wibbly]

The jump from 1st to second is a longer throw on the shift drum and detent since it also has to pass the neutral slot on the detent. (The little star looking piece that actually turns the shift drum) that extra movement makes more noise than the single click between the other gears. In closing...the noise you're hearing is totally normal. It doesn't help that the stock exhaust is so quiet that you can hear every little sound the motor makes which can sometimes be a little scary if you don't know much about what's going on between those engine cases.

this isn't actually true. the throw is the same. the shift star is symmetrical so all gears have the same throw between them. for neutral one of the points of the star is indented to catch the detent arm. if you indented the other points the same way you'd have a neutral between every gear.

the clunk is because the ratio between first and second is much larger than the others, and you might be a slow shifter as well