GL1800 2008 very noisy gear change


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soso2565

GL1800 2008 very noisy gear change

Postby soso2565 » Sun Aug 30, 2015 11:41 pm



Hello every one , I have read MANY thread talking about noisy é rough gear change and ....at that point Ièm quite sure my Gl1800 might have something wrong
here the symptom :
when the bike is cold the gear change are all of them very smooth , barely no noise and definatly no "clunk" sound
when the bike get warmer the gear change begin to be noisy
after 20 minutes riding it is definatly very noisy and come the "clunk" sound

I have change the engine oil from
rotella full synthetic 10w-40
to
rotella semi synthetic 10w-40
to
honda mineral oil 10w-40

same result
I have change the clutch fluid

same result

any ideal what could be my next step ..?

have a great day every one

GL1800
2008
48,000 km



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themainviking
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Re: GL1800 2008 very noisy gear change

Postby themainviking » Mon Aug 31, 2015 7:34 am

Are the oils you mention suitable for motorcycle use with wet clutch? I do not read that in your posts. There should be a JASO MA/MA2 designation in the oil description. If they are, and you have tried everything you listed, then it is a live with situation, or pull the motor and redo the gears in your transmission, which will cost between $4 and $5 thousand dollars for undercut gears. There is no way to smooth out the shifts that I know of other than that. (the really high cost is because these gears are sold in U.S. Dollars, so 25 to 35 percent difference from listed price)
It ain't about the destination - it's all about the journey

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soso2565

Re: GL1800 2008 very noisy gear change

Postby soso2565 » Mon Aug 31, 2015 8:49 am

All the oil that i have try are JASO MA/MA2 so ...good for wet clucth motorcycle

That what im affraid of ....there might be a eal physical issue inside....

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Steve F
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'03 GL1800

Re: GL1800 2008 very noisy gear change

Postby Steve F » Mon Aug 31, 2015 11:40 am

Be quick with your shifts! Don't wait between pulling in clutch and shifting. I have found that pulling clutch lever and moving shift lever at the exact same time will eliminate 90% of shifting noise.
"To ride is the reason, the destination the excuse."

soso2565

Re: GL1800 2008 very noisy gear change

Postby soso2565 » Mon Aug 31, 2015 12:18 pm

ok i will try but I had 2 other Gl1800 roughly same years and never had any trouble with shift timing ...
I have try
preload shifter
different RPM shifting yes at 2300-2500 it is better

charliektm400exc
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Motorcycle: 1996 GL1500SE

Re: GL1800 2008 very noisy gear change

Postby charliektm400exc » Mon Aug 31, 2015 2:35 pm

Try just pulling the clutch only a little way in. Preload the shifter, then just pull the clutch a little way in, and set your throttle accordingly.

If you want to practice it, just ride along at a constant pace and change up and down through the gears aiming to keep the bike as smooth as possible with no jerks.

See if that solves your problem

Charlie

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Fatwing Chris
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Motorcycle: 2004 ABS Model Goldwing

Re: GL1800 2008 very noisy gear change

Postby Fatwing Chris » Thu Sep 03, 2015 6:14 pm

themainviking wrote:Are the oils you mention suitable for motorcycle use with wet clutch? I do not read that in your posts. There should be a JASO MA/MA2 designation in the oil description. If they are, and you have tried everything you listed, then it is a live with situation, or pull the motor and redo the gears in your transmission, which will cost between $4 and $5 thousand dollars for undercut gears. There is no way to smooth out the shifts that I know of other than that. (the really high cost is because these gears are sold in U.S. Dollars, so 25 to 35 percent difference from listed price)

The undercut gears can't be purchased from Honda.There is an installer in Florida that sends them out to a machine shop to get them under cut.

The OP could try flushing the clutch and giving it a good bleed.
If I'da known it would last this long,I'da taken better care of it.
Chris
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cal3san
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Re: GL1800 2008 very noisy gear change

Postby cal3san » Sun Sep 06, 2015 6:56 pm

The new "to me" 03 GL-1800 developed the same sounds you're describing after 400 miles. Then it quit on me (thankfully in town). Took it to my mechanic and initial diagnosis was bad u-joint. Turned out to be cracked drive shaft where it meets u-joint.

Replaced drive shaft ($1K) ... problem resolved.
YNCM-USN Retired (1964-1990)
RVN Veteran (MCB-53 1968)
PGR

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Peteswing
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Re: GL1800 2008 very noisy gear change

Postby Peteswing » Mon Sep 07, 2015 9:18 am

Oil is very important i use Shell Rotella T6 5w/40 synthetic its great for motorcycles i also a small bottle ZDDPlus and my tranny shifts great better then ever. With are wet clutches we can not use regular car oils this may result in what is happening to you. These trannies are like no other i know my problems have been just lazy shifting not pulling the clutch in all the way and it not good for them. After a oil change mine shifts great and even better with ZDDplus, Good Luck

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CMReynolds1
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Re: GL1800 2008 very noisy gear change

Postby CMReynolds1 » Mon Sep 07, 2015 9:54 am

Peteswing, Can you tell me a little more about the ZDD Plus. I never heard of it and may want to try it. How much do you put in? Thanks.
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soso2565

Re: GL1800 2008 very noisy gear change

Postby soso2565 » Tue Sep 08, 2015 7:21 am

my last oil change i have put in Shell Rotella 10w30 T5 and there is a very good amelioration but i still have those clunky shift when the bike run after 30 minute ( before it was after 10 minutes )

i will give a try with the ZDDplus things after research

thank you all

soso2565

Re: GL1800 2008 very noisy gear change

Postby soso2565 » Tue Sep 08, 2015 7:24 am

Peteswing wrote:Oil is very important i use Shell Rotella T6 5w/40 synthetic its great for motorcycles i also a small bottle ZDDPlus and my tranny shifts great better then ever. With are wet clutches we can not use regular car oils this may result in what is happening to you. These trannies are like no other i know my problems have been just lazy shifting not pulling the clutch in all the way and it not good for them. After a oil change mine shifts great and even better with ZDDplus, Good Luck



can you please tell me which ZZDplus product you are using .is it the oil additive one?

thank you

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firey1
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Re: GL1800 2008 very noisy gear change

Postby firey1 » Fri Apr 15, 2016 3:39 pm





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