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The stryker whistles me!

428 Views 8 Replies 5 Participants Last post by  plisken
It's what It is!, lately I'm hearing a whistle in first gears or downshifting; like and old siren or a reverse..., Isn't matched with revs but with speed and happens from 0-30-0 mph aprox pressing clutch or not. First I've thought about helmet at wind, -wear a different one: nope-. A quick seach by internet is scary: from alternator burn't: nope, -fortunately light is constant and battery voltage is ok- to crankshaft bearings, gears or clutch: tightened a little...

Last things I've done: tacho installed, I don't think so, It's digital!, and a pair of rear Baron bones at -1": maybe a belt adjust is needed?, will see...

(2016 and 30k Stryker). first with a TURBO? 馃ぃ馃ぃ.
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My first thought is It鈥檚 sounds like a misaligned belt and it鈥檚 rubbing in the front pulley. Or the belt is too tight. Eventually if not aligned or proper tension it will chirp like a bird.
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I'll second what preacherman said, check to see if that belt is too tight
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Normally I follow the service manual specs, not seems misaligned; a little more than the 5-7 mms recommended but my mech said me that It tenses more when riding.

Trick for chirping: a little of vaseline along the outer edge of the belt. Will see...
I saw a comment in another thread about adding more vaseline and I agree with the user that responded about it affecting the belt. Before you do anything else see if there are any greasy marks on anything from the vaseline to see if the belt may be rubbing. Lubing the belt may just be masking the symptom and not fixing the root issue.
Also if you have the wide rear tire (240, I think?) check the clearance, mine shows that it rubbed a little on the very edge of the tire at one point. I bought the bike about a year ago and have been keeping an eye on it in case I need to adjust it. I don't have a whistle.
I saw a comment in another thread about adding more vaseline and I agree with the user that responded about it affecting the belt. Before you do anything else see if there are any greasy marks on anything from the vaseline to see if the belt may be rubbing. Lubing the belt may just be masking the symptom and not fixing the root issue.
Also if you have the wide rear tire (240, I think?) check the clearance, mine shows that it rubbed a little on the very edge of the tire at one point. I bought the bike about a year ago and have been keeping an eye on it in case I need to adjust it. I don't have a whistle.
OEM tire and belt not seem rubbed; start to happen when installing Baron bones at -1", good to check adjustment after that: mine a little more than specs but told me that It tenses when riding. Adding just a little It works...Will see, thanks you!.

Your 240 a little rubbered?, did you shaved the upper belt guard?
The previous owner installed an aftermarket belt guard. It didn't look like it was rubbing when I looked. I'd have to take another look but the bike is put away until the warm weather comes around.
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If it鈥檚 the sound I鈥檓 imagining in my head based on your description, it鈥檚 coming from the transmission and is caused from the belt being too tight. If your belt was good and then you lowered it but didn鈥檛 adjust the belt tension after you were done, that would likely be the cause of the belt being too tight. This puts added stress on the front pulley which in turn adds stress to the transmission. BTW, what oil are you using and what鈥檚 the temperature while you鈥檙e riding?
If it鈥檚 the sound I鈥檓 imagining in my head based on your description, it鈥檚 coming from the transmission and is caused from the belt being too tight. If your belt was good and then you lowered it but didn鈥檛 adjust the belt tension after you were done, that would likely be the cause of the belt being too tight. This puts added stress on the front pulley which in turn adds stress to the transmission. BTW, what oil are you using and what鈥檚 the temperature while you鈥檙e riding?
Well, I didn't think about It when lowering; distance between pulleys enlarges a little varying geometry... Conclusi贸n: OEM specs don't work at this case. Thank you!.

Castrol semi for mild temps.

Now chirps a little at bumps only. I'll turn up the preload, +2 or so..
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