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PostPosted: October 11th, 2017, 9:42 am 
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Joined: July 13th, 2017, 6:31 am
Posts: 16
Location: Bulgaria
Dear colleagues,
Before one month I changed the fork oil of my transalp, I used 10w syntetic formula. The manual recommends 5w, but on catalog on the motorbike shop for my model suggests 10w. I took decision to change the oil because I was feeling that in motion the front suspension is very soft and the motorbike has going not stabile on highway road, waving in vertical axe. Got 10w Usually I am riding on asphalt or macadan (small rural roads), not ofroad, and I think this formula is proper for my use. From the moment of oil change the front forks working well, when use front brake the forks diving to down soft and no any noises or problems. What is the problem, from few weeks the motorbike has starts react on the unevenness on the road hard. Shakes! I have never touch the rear shock absorber, Do you think to looking there for some problem? How can I check does it works? I know that is pneumatic system and how can I check the pressure there? When I sit up to bike and push it down with all my body weight I think it is works very good, also no problem on mud or stone roads, suspension works good. The adjuster bolt is difficult to move, but may I try with more power to screw it, hope do not damage. Can you give me some ideas what to do? I keep tire pressure 2.00 to 2.2 bar, is not from the tires because are installed brand new (premium top quality mark) and year of use.


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PostPosted: October 11th, 2017, 4:10 pm 
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Joined: February 20th, 2008, 3:08 pm
Posts: 492
Location: Australia
First thing I would check is the smoothness of the steering head bearings, get the front wheel of the ground and turn the handle bars from side to side. Then check there is no front to back movement in the front wheel. If these check OK take the front brake calliper off and check the balance of the front wheel. Good luck with it, Nev.

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PostPosted: October 11th, 2017, 4:12 pm 
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Joined: July 14th, 2014, 4:55 pm
Posts: 378
Location: California USA
Zarkooo, remind us the mileage (Kilometerage?) of the bike.

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89 Transalp XL600V X3, 01 Goldwing GL1800, 99 Varadero XL1000V
05 CRF450X Plated, 01 XR650L, 84 Passport C70


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PostPosted: October 14th, 2017, 10:19 am 
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Joined: July 13th, 2017, 6:31 am
Posts: 16
Location: Bulgaria
Thank you for advices! The bearings are ok, the steering is fine, no any gaps and in summer I got balance on tires, as the mechanic said me that everything is good.
The mileage of the bike is going to 43 000 km, approx. 27 000 miles, so on.


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PostPosted: October 15th, 2017, 3:05 pm 
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Joined: February 4th, 2006, 6:26 pm
Posts: 1329
Location: Champaign, IL USA
Swing arm bearings can cause funny shaking in the front.

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Garry Bird, YMRacing, Owner/Mgr.
AHRMA, CCS #72
'89 TA, 06 Ducati Sport 1000 Bella Boomer the race bike, '76 XS650 Farrah the race bike, '76 RD400 Evil Spawn the race bike, '97 Buell T-Bolt S2, ('97 Dyna-Conv RIP 8 June 2017, the bike my son was riding), '06 KLR 650 off road hooligan, and a '79 GS1000E (sold 25 March 2017 after 30 years of ownership), but ride the TA the most miles!


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PostPosted: October 15th, 2017, 4:40 pm 
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Joined: July 14th, 2014, 4:55 pm
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Location: California USA
You don't happen to have a trunk on the back of your bike, do you?

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Ride Now, Work Later!

89 Transalp XL600V X3, 01 Goldwing GL1800, 99 Varadero XL1000V
05 CRF450X Plated, 01 XR650L, 84 Passport C70


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PostPosted: October 21st, 2017, 8:22 am 
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Joined: July 13th, 2017, 6:31 am
Posts: 16
Location: Bulgaria
Hi! I am riding alone, no second person on rear seat, or heavy luggage, keeping the air pressure 2 to 2.2 bar.
For the bearings, yes good idea shall chek it, I am sure the sock absorbers working well. I went to service box to have a complete chek, and the mechanic said me that there is no any problem with it.


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PostPosted: October 21st, 2017, 2:57 pm 
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Joined: February 4th, 2006, 6:26 pm
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Location: Champaign, IL USA
zarkooo wrote:
Hi! I am riding alone, no second person on rear seat, or heavy luggage, keeping the air pressure 2 to 2.2 bar.
For the bearings, yes good idea shall chek it, I am sure the sock absorbers working well. I went to service box to have a complete chek, and the mechanic said me that there is no any problem with it.


I installed a Cogent Dynamics rear shock, fork springs, and pre-load caps set up for me. Works great...pricey but worth it in my opinion. Pretty sure you could contact Rick at Cogent Dynamics and get some help sorting it out. Feel free to tell him I suggested it.

www.motocd.com

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Garry Bird, YMRacing, Owner/Mgr.
AHRMA, CCS #72
'89 TA, 06 Ducati Sport 1000 Bella Boomer the race bike, '76 XS650 Farrah the race bike, '76 RD400 Evil Spawn the race bike, '97 Buell T-Bolt S2, ('97 Dyna-Conv RIP 8 June 2017, the bike my son was riding), '06 KLR 650 off road hooligan, and a '79 GS1000E (sold 25 March 2017 after 30 years of ownership), but ride the TA the most miles!


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PostPosted: November 10th, 2017, 8:40 am 
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Location: Bulgaria
Thanks to all! Now the machine is ok.


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PostPosted: November 10th, 2017, 10:57 am 
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Joined: July 14th, 2014, 4:55 pm
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Location: California USA
Quote:
Thanks to all! Now the machine is ok.


So what was the problem?

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Ride Now, Work Later!

89 Transalp XL600V X3, 01 Goldwing GL1800, 99 Varadero XL1000V
05 CRF450X Plated, 01 XR650L, 84 Passport C70


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PostPosted: November 18th, 2017, 11:11 am 
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Joined: July 13th, 2017, 6:31 am
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Location: Bulgaria
I went to mechanic to inspect the machine, he did not tell me nothing for some problem with the shock absorber, but arose problem with the chain. There is no connection between both problems, but I think when I got adjust the chain the bike is quite soft, could be illusion but it is ok now.


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PostPosted: November 18th, 2017, 2:19 pm 
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Joined: February 4th, 2006, 6:26 pm
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Location: Champaign, IL USA
zarkooo wrote:
I went to mechanic to inspect the machine, he did not tell me nothing for some problem with the shock absorber, but arose problem with the chain. There is no connection between both problems, but I think when I got adjust the chain the bike is quite soft, could be illusion but it is ok now.


You had the chain adjusted so tight that it didn't allow the rear suspension to work properly. If the ride seems too soft, then increase the preload on your rear shock.

_________________
Garry Bird, YMRacing, Owner/Mgr.
AHRMA, CCS #72
'89 TA, 06 Ducati Sport 1000 Bella Boomer the race bike, '76 XS650 Farrah the race bike, '76 RD400 Evil Spawn the race bike, '97 Buell T-Bolt S2, ('97 Dyna-Conv RIP 8 June 2017, the bike my son was riding), '06 KLR 650 off road hooligan, and a '79 GS1000E (sold 25 March 2017 after 30 years of ownership), but ride the TA the most miles!


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