Get out and ride lol JK with ya. 
Rattle at Startup....What's Wrong?
Rattle at Startup....What's Wrong?
When I fire up the bike, hot or cold, I get a sharp rattling sound on the left side when it fires up...it sounds like it's coming from the primary, but I can't tell for sure. It fires up first try, and runs fine when I'm riding around, but this rattling sound is disconcerting...this began yesterday. About 700 miles on the bike so far. Any ideas what it'd be?
Well, that wasn't quite what I'd expected. The stealer is only about a 10 minute ride for me, so I shot on down to the service center, and had one of the mechanics take a look at it.
I told him it had just crossed 650 miles on the way over, and that I was getting a nasty sounding rattle from what sounded like was in the primary. He fired it up 4 or 5 times (and of course it didn't really do it that badly any of those times
) and said it was still breaking in and that I'd be getting "all kindsa weird noises during that period". I said I figured that period was pretty much past about 150 miles back and that it hadn't done this until yesterday. He said to keep an eye on it, and that was about it.
So I guess I'm gonna keep an eye on it for a bit. Like I said in my first post, it runs perfectly on the road, just this weird rattle at startup. I'm kinda irritated.
I told him it had just crossed 650 miles on the way over, and that I was getting a nasty sounding rattle from what sounded like was in the primary. He fired it up 4 or 5 times (and of course it didn't really do it that badly any of those times
) and said it was still breaking in and that I'd be getting "all kindsa weird noises during that period". I said I figured that period was pretty much past about 150 miles back and that it hadn't done this until yesterday. He said to keep an eye on it, and that was about it.So I guess I'm gonna keep an eye on it for a bit.
Like I said in my first post, it runs perfectly on the road, just this weird rattle at startup. I'm kinda irritated.
Road Master
Joined: Jan 2007
Posts: 1,221
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From:
Not sayin this is your problem, but mine did that sometimes when I fired it. I finally found that the spring washer on the left side foot peg wasn't enough resistance so it rattled a little, so I added another washer & it tightened it up & no more rattle! Hopefully it's somethin like that, just check all that simple crap! Good luck man.
Advanced
Joined: Jul 2008
Posts: 53
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Check your horn - That stupid thing loosens up on me every few hundred miles. With a new bike loctite is your best friend.
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Joined: Jan 2007
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From: along the shore of Mishigami
Like it was previously mentioned, check for loose hardware. Check your jiffystand and make sure it is hitting the rubber bumper on the frame under the primary, if not, adjust the bumper. A major problem would be the primary chain adjuster not taking up the slack in the chain and the chain is slapping things around in the case, not a good thing. When the chains get hot they tend to get tighter and the slack tends to go away.
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Like it was previously mentioned, check for loose hardware. Check your jiffystand and make sure it is hitting the rubber bumper on the frame under the primary, if not, adjust the bumper. A major problem would be the primary chain adjuster not taking up the slack in the chain and the chain is slapping things around in the case, not a good thing. When the chains get hot they tend to get tighter and the slack tends to go away.
My next step will be removing the derby cover (and entire primary if necessary) and seeing what's going on...I should be able to tell right away if the tightener isn't taking up enough slack, right? I don't think that's the problem.....at least I hope not.
Thanks for the suggestions so far guys.
