| | knocking sound from take off |    |
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cjuzda
Maxi-Scooter Rider
Number of posts: 105
Points: 507
Registration date: 2011-05-16
 |  Subject: knocking sound from take off  Wed Jun 01, 2011 2:32 pm | |
| 2006 Silver Wing with 2000 km's bought used. I've noticed knocking noise coming from the left rear of the bike on take off from a stop. Only lasts for a couple of seconds and stops as soon as I get moving a few feet. I don't notice it otherwise even at really slow speeds (<10 kph). is this normal, is it more likely to be the variator than the engine |
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buddy19520
Super Scooter Rider
Number of posts: 286
Location: Cornelius NC
Points: 1129
Registration date: 2010-02-27
| | Subject: Re: knocking sound from take off Thu Jun 02, 2011 8:19 am | |
| The Silverwing usually makes a rumbling noise upon take-off. If you take off slowly, you will also build up a squealing noise from the belt and clutch. Hard take-offs help prevent this (and are a lot more fun).
The rumbling can be stopped by using lighter variator weights, Dr Pulley sliders or a aftermarket variator (which usually has lighter weights).
Most Silverwings are pretty trouble-free. The chance that you got a lemon is pretty small. Relax and ride. |
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acworthpatrick
Scooter Rider
Number of posts: 19
Age: 31
Location: Acworth, GA
Points: 450
Registration date: 2011-03-28
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 4:17 am | |
| Curious here as I am having the same issue, what will lighter weights to the top end performance of the bike? And is the noise really hurting anything? |
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MaxB
Touring Scooter Rider
Number of posts: 302
Age: 60
Location: Indiana
Points: 1321
Registration date: 2009-10-06
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 5:32 am | |
| Probably the belt hitting the aluminum case, due to slack between pulleys.
It happens on some scoots and not others.
To verify if this is the problem , open the case and look for rubbing on the lower case.
It won't hurt just annoying.
As the scoot gets mopre miles on it , it will dissipate somewhat.
Mine went away with the J Costa variator, others use slider weights, the stock weight is 28 grams. I will let others tell of experience with lighter weights.
MaxB |
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Waspie
Silver Wing Guru
Number of posts: 1739
Age: 60
Location: Portland, UK
Points: 2905
Registration date: 2009-07-26
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 7:31 am | |
| Totally misled by the title!!!!  Damm!!! I was going to be smart and say it will be the undercarriage retracting into the fuselage. You don't have retractable out riggers on your 'Wing' perchance?  |
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honda_silver
Site Admin
Number of posts: 2258
Age: 51
Location: Georgetown, Tx
Points: 3605
Registration date: 2008-12-23
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 10:32 am | |
| | MaxB wrote: | | Probably the belt hitting the aluminum case, due to slack between pulleys. |
If it is the belt slapping, then take off the aluminum case and clean the top and bottom near the front pulley and apply some silicone (or similar) type spray ... it may help to reduce the slap._________________ Bill - Georgetown TX 07 Silver Wing ABS Clearview w/vent, Givi E96/TB19/E52 with Admore Lighting, Alaskan Leather, Wrist Rests, 3M Solas tape, K&N air, Hyperpro spring, Grip Puppies, Airhawk, Utopia backrest, Stebel, Apexcone HIDs, StingerZ LEDs (w/Backoff WigWag), Knight Rider Sequential LED, NGK Iridium, Power Commander III, Manic Salamander, Saeng mirrors, Garmin Zumo 660, Dark-Side Sumitomo Tire  |
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bigbird
Silver Wing Guru
Number of posts: 2164
Location: Winnipeg Canada
Points: 3061
Registration date: 2010-05-02
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 11:52 am | |
| | honda_silver wrote: |
If it is the belt slapping, then take off the aluminum case and clean the top and bottom near the front pulley and apply some silicone (or similar) type spray ... it may help to reduce the slap. |
I'd think twice about putting any silicone spray anywhere near the belt or pulleys. The CVT relies on the friction between the belt and the pulleys to engage. |
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honda_silver
Site Admin
Number of posts: 2258
Age: 51
Location: Georgetown, Tx
Points: 3605
Registration date: 2008-12-23
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 12:43 pm | |
| | bigbird wrote: | | I'd think twice about putting any silicone spray anywhere near the belt or pulleys. The CVT relies on the friction between the belt and the pulleys to engage. |
As I recall the belt slap marks are on the outside aluminum casing which can be moved far away from the belt and pulleys and sprayed.
I have 34,000 miles on my non-OEM belt, so I will be replacing the belt. I will recheck the position of the belt slap marks._________________ Bill - Georgetown TX 07 Silver Wing ABS Clearview w/vent, Givi E96/TB19/E52 with Admore Lighting, Alaskan Leather, Wrist Rests, 3M Solas tape, K&N air, Hyperpro spring, Grip Puppies, Airhawk, Utopia backrest, Stebel, Apexcone HIDs, StingerZ LEDs (w/Backoff WigWag), Knight Rider Sequential LED, NGK Iridium, Power Commander III, Manic Salamander, Saeng mirrors, Garmin Zumo 660, Dark-Side Sumitomo Tire |
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bigbird
Silver Wing Guru
Number of posts: 2164
Location: Winnipeg Canada
Points: 3061
Registration date: 2010-05-02
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 2:04 pm | |
| | honda_silver wrote: |
As I recall the belt slap marks are on the outside aluminum casing which can be moved far away from the belt and pulleys and sprayed. |
If the belt is slapping the casing and there's silicone on the casing, will silicone not be transferred to the belt? |
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honda_silver
Site Admin
Number of posts: 2258
Age: 51
Location: Georgetown, Tx
Points: 3605
Registration date: 2008-12-23
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 3:23 pm | |
| | bigbird wrote: | | honda_silver wrote: | | As I recall the belt slap marks are on the outside aluminum casing which can be moved far away from the belt and pulleys and sprayed. |
If the belt is slapping the casing and there's silicone on the casing, will silicone not be transferred to the belt? |
People have been applying silicone spray to Dr Pulley sliders with no problems ... including me. After it dries you can wipe and there was no residue left.
_________________ Bill - Georgetown TX 07 Silver Wing ABS Clearview w/vent, Givi E96/TB19/E52 with Admore Lighting, Alaskan Leather, Wrist Rests, 3M Solas tape, K&N air, Hyperpro spring, Grip Puppies, Airhawk, Utopia backrest, Stebel, Apexcone HIDs, StingerZ LEDs (w/Backoff WigWag), Knight Rider Sequential LED, NGK Iridium, Power Commander III, Manic Salamander, Saeng mirrors, Garmin Zumo 660, Dark-Side Sumitomo Tire |
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bigbird
Silver Wing Guru
Number of posts: 2164
Location: Winnipeg Canada
Points: 3061
Registration date: 2010-05-02
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 3:30 pm | |
| | honda_silver wrote: |
People have been applying silicone spray to Dr Pulley sliders with no problems ... including me.
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That's because the sliders are inside of the inner sheave of the front variator, nowhere near the belt.
I am not on here to bug you Bill, but I firmly believe that if someone takes your advice and sprays anywhere near the belt with silicone spray they will not be happy with the results. |
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cjuzda
Maxi-Scooter Rider
Number of posts: 105
Points: 507
Registration date: 2011-05-16
| | Subject: Re: knocking sound from take off Fri Jun 03, 2011 7:00 pm | |
| Thanks for all the input. I'm certainly not panicked about this. It seems to occur when the SW has warmed up a bit. Definiteley a hollow knocking sound only at the slowest speeds for a second or 2 while taking off from a standing start. When I have time, I'll remove the case cover and take a look.
Chris |
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| | knocking sound from take off | |
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