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Old 02-22-2013, 11:49 AM   #74041
PPCLI-Jim
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I agree with Rob . Its a lot of money invested in the engine , Better be safe then sorry. I know its crappy to think about the work but it may save you replaceing the entire thing.
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Old 02-22-2013, 11:53 AM   #74042
Rob.G
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Quote:
Originally Posted by PPCLI-Jim View Post
I agree with Rob . Its a lot of money invested in the engine , Better be safe then sorry. I know its crappy to think about the work but it may save you replaceing the entire thing.
As much as it sucks to have to tear into it again, it'll go much easier, since you've already done it once. Same with reassembly. And you'll be that much better at it, and know your bike that much better.

I still wonder if it isn't the cam chain tensioner. I've been thinking about this a lot. The bike ran fine for a while, until you really went and rode it. So something has gotten out of whack since then. It's not like it started off sounding like this. So... what could it be?

Years ago, I bought a used Polaris RMK800 snowmobile. Turns out the top-end was fried. I ordered a new jug and a pair of pistons and R&R'd it. Went for a ride. It ran pretty good. The only odd thing was when I shut the motor off, it stopped. Instantly. Like, it didn't turn over one or two more times, it just STOPPED. I found that odd.

Long story short, one of the circlips holding a piston on came out. You can only imagine the mess it made. I'm amazed the thing ran at all. But it ate the head, both pistons, one jug, and dinged up one of the rods. What a mess. I ended up replacing the entire top end with a (used) ported top end, and had a new rod put on the crank. Rode it twice more and sold it. Lost my ass on it of course. :)

Rob
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Old 02-22-2013, 12:50 PM   #74043
rch10007
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Kinda sounds like piston slap...
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Old 02-22-2013, 02:25 PM   #74044
Carl Childers
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Quote:
Originally Posted by sandwash View Post
Or you can buy a momentary mini switch from Radio Shack,fits inside the housing.

Any online source for this switch? My stock starter switch took a hit and probably won't last much longer. I live many miles from the nearest Radio Shack.
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Old 02-22-2013, 02:37 PM   #74045
Carl Childers
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[QUOTE=planemanx15;20785269]I recently Big bored my bike. I went for a ride today, and while on the highway it started to make a very loud metal sound and died when I pulled over. I restarted the bike, and rode slowly home. Initially I thought the valves came undone, but after checking it, the sound remains. Any suggestions?

I'll weigh in with the other reply's to this.......

Don't even start it again, tear it down and have a good look before any more possible damage can occur.

Like Rob I've been there and done that!
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Old 02-22-2013, 02:45 PM   #74046
Feelers
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[QUOTE=planemanx15;20785269]I recently Big bored my bike. I went for a ride today, and while on the highway it started to make a very loud metal sound and died when I pulled over. I restarted the bike, and rode slowly home. Initially I thought the valves came undone, but after checking it, the sound remains. Any suggestions?

Here is a video of the sound:

When my car made that sound I tore the engine apart and found that the crank bearings were chewed up pretty bad...
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Old 02-22-2013, 04:33 PM   #74047
planemanx15
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Just took apart the top end to see if its the CCT. I reset it and the sound got lower, but still there. Then I adjusted the valves again, its still there but again lower. Could this be as simple as bad gas? I just filled it using a container of gas from months ago, and then put a bunch of lucas fuel stabilizer in there. I also changed the oil, it was pretty nasty, I will check for metal when it settles.

EDIT: Update: Tomorrow I'm going change the fuel. The gas I put in is old and I just realized the lucus stuff I used was opened and last used 3 years ago. Maybe its causing part of an issue. After that, I'm going to take the whole thing apart and see if the piston top has any marks from the valve on it. If it does, what needs to be done to correct that?
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planemanx15 screwed with this post 02-22-2013 at 05:40 PM
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Old 02-22-2013, 05:13 PM   #74048
3DChief
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Start/kill switches

http://www.advrider.com/forums/showt...=634120&page=3

See post #40 about new starter/kill switches. Don't mess with makeshift switches or repairs, do it right once and be done with it forever!

Tim
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Old 02-22-2013, 05:55 PM   #74049
Carl Childers
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Quote:
Originally Posted by 3DChief View Post
http://www.advrider.com/forums/showt...=634120&page=3

See post #40 about new starter/kill switches. Don't mess with makeshift switches or repairs, do it right once and be done with it forever!

Tim

WOW, that's great, thanks 3D!
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Old 02-22-2013, 07:40 PM   #74050
jessepitt
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Joined: Oct 2008
Location: Redmond Oregon
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Quote:
Originally Posted by planemanx15 View Post
I recently Big bored my bike. I went for a ride today, and while on the highway it started to make a very loud metal sound and died when I pulled over. I restarted the bike, and rode slowly home. Initially I thought the valves came undone, but after checking it, the sound remains. Any suggestions?

Here is a video of the sound:

I hate to be a pessimist but to me that sounds like a bent valve (Contacted the piston during high rpm freeway ride), it sounds like its not seating and hammering itself a new shape. Sounds like its running very poorly as well? Doesnt seem to want to rev? Dont run it more or you risk trashing an expensive head. This is a bummer man and I feel for you, but be thankfull that it seems to be top end not trans related so you probably wont end up splitting the cases. I may be totally wrong but theres a chance that I'm right so I would just tear it down.
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Old 02-22-2013, 08:41 PM   #74051
Mr. Canoehead
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Location: Calgary, Too far to the mountains and too cold
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Quote:
Originally Posted by planemanx15 View Post
Just took apart the top end to see if its the CCT. I reset it and the sound got lower, but still there. Then I adjusted the valves again, its still there but again lower. Could this be as simple as bad gas? I just filled it using a container of gas from months ago...

EDIT: Update: Tomorrow I'm going change the fuel. The gas I put in is old and I just realized the lucus stuff I used was opened and last used 3 years ago. Maybe its causing part of an issue.
The symptoms don't support bad gas. Strip it down. Hopefully it is not terminal. Good luck.


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Old 02-22-2013, 09:44 PM   #74052
planemanx15
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Quote:
Originally Posted by jessepitt View Post
I hate to be a pessimist but to me that sounds like a bent valve (Contacted the piston during high rpm freeway ride), it sounds like its not seating and hammering itself a new shape. Sounds like its running very poorly as well? Doesnt seem to want to rev? Dont run it more or you risk trashing an expensive head. This is a bummer man and I feel for you, but be thankfull that it seems to be top end not trans related so you probably wont end up splitting the cases. I may be totally wrong but theres a chance that I'm right so I would just tear it down.
It does sound very poor, but has no problem revving. I'm 90% sure it's the top end. What should be done if the valve is touching the piston?
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Old 02-23-2013, 01:46 AM   #74053
shaddix
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Location: Central AL
Oddometer: 647
Quote:
Originally Posted by FlowBee View Post
You might also try disconnecting the sidestand immobilizer switch to see if that helps. Your nanny government in cooperation with personal injury lawyers mandated these to protect you from yourself. Once disconnected you will discover the freedom to start the bike and let it idle on the sidestand.
I think I figured out it is the clutch so I'm going to do that little wiring change tomorrow to disable safety feature. I think the dr will let you start it with the side stand down as long as it is in neutral, or am I wrong abut that? I know I let it idle on the stand sometimes but maybe that's after I started it with the stand up first.
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Old 02-23-2013, 03:03 AM   #74054
SoPaRider
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Will any year Hayabusa muffler work with Jesse's (Kientech) mid-pipe adapter kit, there was a set of 'busa mufflers for sale on ebay that stated they would only fit 1999-2007 model 'busa's? There seems to be quite a range of prices for the 'busa mufflers out there, used ones for as little as $71.00 for a pair ($35.50 a piece), up to $100 or more for a new one.

Jeff (SoPaRider)

Third owner of a nearly new '09 DR650SE (I'm workin' on a buildin'!)
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Old 02-23-2013, 04:01 AM   #74055
SCExpat
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The first one sold for $54.95 and free shipping. The second pair sold for $71 plus $40 shipping = $55.50 each! Good deals.

Thanks for the info. I'll be searching flea bay.
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