Question for you past or present metric owners
Tourer
Joined: May 2007
Posts: 441
Likes: 1
From: Ohio
I was thinking a missed gear during a speed shift could send the mill back cryin' for momma. I'm not sure I'd level with my dear old dad when I was young if I screwed the pooch. But 2 Bills for just bent valves? Usually piston damage occurs when bent valves transpire. 2 Large for pistons, rings, valves, LABOR, etc., I can believe. I believe a HD store wants 900 bucks to transform an 883 to a 1200 just in labor, so......
Yeah, 2nd opinion and waterboarding......
Yeah, 2nd opinion and waterboarding......
Grand HDF Member
Joined: Jan 2008
Posts: 4,528
Likes: 606
From: Raleigh NC
A jumped cam WOULD seem mostly likey... if.... and that's a big if... the bike was running fine when it was switched off..... a second opinion is the way to go.... shoot... for 2 grand... maybe a third....
Road Captain
Joined: Jan 2006
Posts: 566
Likes: 3
From:
My son called me today, he has a Suzuki GXR 650, it's a year and a half old with 9k miles on it. He uses it on a daily basis as a commuter back and forth to work (he lives in Florida so has the luxury of riding year round, grr... it's 20 degrees here now but I digress). It wouldn't start the other day so he has it at the dealer. The dealer called him today and said that they did a compression check and three of the 4 cylinders have bad compression, the fourth is marginal. A pressure test shows leakage on the intake valves. They think he has bent valves but will have to take it apart to be sure. So they're telling him up to $2k to pull it all apart and fix it. They say leading cause for this which I agree with them is over revving the engine. Yet my son said he hasn't done that at all ( he has no reason to lie, it's his bike and his repair) and the bike was running just fine up until the last time he shut it off.
So I don't quite understand how the bike can go from running fine to bent valves on three cylinders and not even starting without some noticeable event happening that he would remember. My concern hear that if he does get it fixed it will happen again if we don't find the root cause of the problem. Are these metrics that easy to do major engine damage with hardly even knowing it? The way you see some of these guys riding them you'd think you'd have to really crank it out to get to that point. So any thoughts to help us go forward are greatly appreciated.
So I don't quite understand how the bike can go from running fine to bent valves on three cylinders and not even starting without some noticeable event happening that he would remember. My concern hear that if he does get it fixed it will happen again if we don't find the root cause of the problem. Are these metrics that easy to do major engine damage with hardly even knowing it? The way you see some of these guys riding them you'd think you'd have to really crank it out to get to that point. So any thoughts to help us go forward are greatly appreciated.
Either way, those are rock solid engines, so it's hard for us to speculate about what could've happened.
CR Repair
Hey guys, thanks for all the input, you guys are great. I wasn't expecting much of a response and possibly getting flamed especially since it was about a CR repair.
This is the exact reason I love this forum so much and the guys that make it what it is! Safe riding!!!
This is the exact reason I love this forum so much and the guys that make it what it is! Safe riding!!!
CR Repair
I didn't want to make a long story even longer with all the detail. I did speak with the mechanic that looked at it and they did go through the progression of making sure there was spark and fuel delivery, indeed the plugs were fouled with fuel. So they replaced the plugs and still no start and that lead to the compression check.
Road Warrior
Joined: Jul 2007
Posts: 1,804
Likes: 0
From: Arizona
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Road Captain
Joined: Jan 2006
Posts: 566
Likes: 3
From:
I have a link with a guy with 200k miles on a 2000 GSX-R 750, without anything major done to it. They'll last forever if taken care of. I'm pretty interested to see how this turns out.
Road Master
Joined: Sep 2006
Posts: 899
Likes: 9
From: Franklin, TN
For 2k I'd definitely get a second opinion if you have doubts about what they are telling you. Worst case they tell you the same thing but at least you won't be wondering if your getting screwed.
I've beat the snot out of a few metrics and never had any failure that catastrophic. Not saying it isn't so, but I would get someone else to look at it to be sure.
I've beat the snot out of a few metrics and never had any failure that catastrophic. Not saying it isn't so, but I would get someone else to look at it to be sure.