Gear slap

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Tomm9050
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Gear slap

Post by Tomm9050 »

I just noticed a loud clunk sound shifting into second gear.

Did I break something? Running Mobil 1 10W40.

It only seems to be that gear.

Thx
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
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Mr. Wibbens
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Post by Mr. Wibbens »

You'll know if it starts to whine like a gear drive
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Tomm9050
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Post by Tomm9050 »

I dont' think it's doing that/ but I just noticed it. (hard to tell over the KIPS rattle)


I think I'll try 80wt gear oil.
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
Tomm9050
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Post by Tomm9050 »

I dont' think it's doing that/ but I just noticed it. (hard to tell over the KIPS rattle)


I think I'll try 80wt gear oil.
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
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Post by Mr. Wibbens »

Oh yeah that should fix it :?
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Mr. Wibbens
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Post by Mr. Wibbens »

If its actually clunking, I'd take a guess that something is amiss in your tranny

The bearing on the end of the input shaft goes bad and it will definitely start to clunk in second gear, while the rest of the gears may seem fine, as mine did

Hopefully it's not ...

Image

These were needle bearings

Image

These are needle bearings, fused on to the end of the input shaft

Image
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Post by Griffbones »

Now that is an ugly picture Mr. Wibbens! :shock: EEK!
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'97 DR350 (407cc)
2005 KX85 (103.5cc)
2006 KDX 200 (Bone stock other than Jetting, Gnarley woods, Turbine Core II)
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Post by Mr. Wibbens »

I was at least 15 miles away from my truck and had no other choice than to ride it out
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Post by Griffbones »

>|<>QBB<
Mr. Wibbens wrote:I was at least 15 miles away from my truck and had no other choice than to ride it out
Ouch! :sad:
'83 CR60R Fully restored
'97 DR350 (407cc)
2005 KX85 (103.5cc)
2006 KDX 200 (Bone stock other than Jetting, Gnarley woods, Turbine Core II)
2007 250 XC-W (SX head)
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kdxmaniac
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Post by kdxmaniac »

looks like it scewd the hole up? did you put a bearing in it, or did you have to get a new cover?
my bikes
-------------
96 ktm 300
96 XR400R
07 hayabusa
77 kz 1000
85 goldwing 1200
02 BIG DOG PITBULL

gone but not forgotten
96 kdx 200
98 ktm 380 "because it dang near killed me!"
97 ktm 360
96 ktm 250
93 wr 250
94 dr 350s
93 kx 250
07 gsxr 1000
99 bandit 1200
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Post by Mr. Wibbens »

Just replaced bearing, cover was fine
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kdxmaniac
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Post by kdxmaniac »

still looked bad! i would have freaked out if it was me this happend to.
my bikes
-------------
96 ktm 300
96 XR400R
07 hayabusa
77 kz 1000
85 goldwing 1200
02 BIG DOG PITBULL

gone but not forgotten
96 kdx 200
98 ktm 380 "because it dang near killed me!"
97 ktm 360
96 ktm 250
93 wr 250
94 dr 350s
93 kx 250
07 gsxr 1000
99 bandit 1200
Tomm9050
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Post by Tomm9050 »

Yikes! How can I tell if that is what the problem actually is?
Is this a "split the cases" fix?
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
Tomm9050
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Post by Tomm9050 »

I change the oil to Spectro gear lube and it's still doing the same thing, a loud clunk sound particularly when shifting from neutral (clutch in) into second.

Is this normal? If not is there an easy fix or just 'run it 'til it breaks" ?

Thx
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
Tomm9050
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Post by Tomm9050 »

It definitely "clunks" shifting into second but mostly shifting from neutral standing still with the clutch pulled in. Moving, shifting from 1st to 2nd and up seems fine.
Otherwise it runs great!
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
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Post by Mr. Wibbens »

I would not worry about it then

Most bikes clunk going from neutral
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Tomm9050
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Post by Tomm9050 »

Thanks! I'll run it til it breaks and then it's off to you to rebuild:)
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
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