Clanking metal sound shifting into 1st. - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 14 (permalink) Old 09-16-2019, 08:08 PM Thread Starter
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Clanking metal sound shifting into 1st.

I have a 2002 T100 that makes a loud metallic-sounding clanking sound when I shift into 1st gear from neutral. It gets better as the bike warms-up. Oil type & level is correct. Any ideas as to the source?

/M

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post #2 of 14 (permalink) Old 09-16-2019, 09:41 PM
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Are you sure you'r not talking about the Harley? If not it could be too high idle, clutch adjustment(too much free play) or one week or broken clutch spring.
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post #3 of 14 (permalink) Old 09-16-2019, 11:33 PM Thread Starter
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Idle is bang-on @ 1100. Free play adjusted properly and there is a relatively fresh set of Barnett green springs installed. This sounds like metal plate being banged on and ringing. My other Bonnie's (and Harley) do not make such a noise.

/M

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post #4 of 14 (permalink) Old 09-17-2019, 03:48 AM
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front sprocket loose?

07 thrux,Ram air ark, TPUSA manifolds Predator pros, 40mm Mikuni flatslides, ttp +3 ignitor,yss emulators,hp springs, Bitubo shocks,pingle steering damper,D9 layflat,2" rise clipons,shorai battery,Changes daily.
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post #5 of 14 (permalink) Old 09-17-2019, 03:52 AM
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Originally Posted by RaceDweeb View Post
I have a 2002 T100 that makes a loud metallic-sounding clanking sound when I shift into 1st gear from neutral. It gets better as the bike warms-up. Oil type & level is correct. Any ideas as to the source?

/M

mine does the same when it's very cold.

as the engine is cold, of course the oil too is cold and much thicker than when at normal operating temps. this allows the clutch plates to grab each other and slowly spin around thus creating the "clunk" when going from neutral to first gear. sometimes you can feel it want to lurch forward. if you have a centre stand and try it you will see the wheel spin even when the clutch is pulled in

even though we use multigrade engine oils, it is still thicker at cold temps and thins out at normal temps. the change in viscosity is simply not as great if it were a mono oil


personally, I like the clunk. sounds tuff

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post #6 of 14 (permalink) Old 09-17-2019, 04:08 AM
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front sprocket loose?
Also check the cush drive rubber pads in the rear wheel for slop, and the bearing in the sprocket carrier for wear
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post #7 of 14 (permalink) Old 09-17-2019, 10:19 AM
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They all do that. Cold, clunk, warm not so much. Normal.

Masquerading every day as a normal person is exhausting.
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post #8 of 14 (permalink) Old 09-17-2019, 02:59 PM
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Try backing the idle down to 950 to 1000 RPM. Just for fun.
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post #9 of 14 (permalink) Old 09-17-2019, 07:25 PM
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Quote:
Originally Posted by RaceDweeb View Post
I have a 2002 T100 that makes a loud metallic-sounding clanking sound when I shift into 1st gear from neutral. It gets better as the bike warms-up. Oil type & level is correct. Any ideas as to the source?/M
If this only occurs at cold start up, let the bike warm up a little longer. I let mine warm up for about 1 minute, then there is only a slight clunk.

Ride safe,

Quentin
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post #10 of 14 (permalink) Old 09-17-2019, 07:30 PM
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my 2012 t100 also do that, i think it is the chain knocking on the chainguard, i might have some links in my chain that are seized , i will replace it next spring and see if it fix it.
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