Definite Bad news on bike...

"~kurt" wrote in message

>D wrote:
>>
>> Sure, there won't be any ignition, but he's still going to rev past
>> redline
>> if he downshifts at redline. Depending on how much traction he has at
>> the
>> back anyway.
>
> I didn't get the impression that he was over rev'ing it - just that he
> was always running near redline, and even downshifting when well into
> the power band looking for more power.
>
> - Kurt

In the other thread Dealerhip Results, Stephan said, refering to the lady at
the dealership:
*The primary cause she said was my habit of downshifting at high enough rpms
causing my rear wheel to slide
because of the shift. She's seen multiple bikes before suffer valve damage
over time as a result.*

She had to be talking about valve float rpms, and suggesting that if the
rear wheel came out while downshifting, he must have hit 'em. One gear at a
time usually isn't a problem, but two or three quick downshifts under
braking before the bike's speed drops enough can hurt. Saddle asked if the
bike had a rev limiter. I was just explaining that wouldn't prevent this.
A slipper clutch would. Not sure that this even applies here. I got the
impression Stephan was just tooling along at about 70 when it quit. Valve
damage over time is one thing, all valves crunched in one cylinder at once
is something else.
 >> Stay informed about: Definite Bad news on bike... 

On Sun, 30 Sep 2007 08:36:38 -0400, D wrote:

> "Stephan Rose" wrote in message
>
>> On Sun, 30 Sep 2007 07:51:43 -0400, D wrote:
>>
>>> "~kurt" wrote in message
>>>
>>>>D wrote:
>>>>>
>>>>> Sure, there won't be any ignition, but he's still going to rev past
>>>>> redline
>>>>> if he downshifts at redline. Depending on how much traction he has
>>>>> at the
>>>>> back anyway.
>>>>
>>>> I didn't get the impression that he was over rev'ing it - just that
>>>> he was always running near redline, and even downshifting when well
>>>> into the power band looking for more power.
>>>>
>>>> - Kurt
>>>
>>> In the other thread Dealerhip Results, Stephan said, refering to the
>>> lady at the dealership:
>>> *The primary cause she said was my habit of downshifting at high
>>> enough rpms causing my rear wheel to slide
>>> because of the shift. She's seen multiple bikes before suffer valve
>>> damage over time as a result.*
>>>
>>> She had to be talking about valve float rpms, and suggesting that if
>>> the rear wheel came out while downshifting, he must have hit 'em. One
>>> gear at a time usually isn't a problem, but two or three quick
>>> downshifts under braking before the bike's speed drops enough can
>>> hurt. Saddle asked if the bike had a rev limiter. I was just
>>> explaining that wouldn't prevent this. A slipper clutch would. Not
>>> sure that this even applies here. I got the impression Stephan was
>>> just tooling along at about 70 when it quit. Valve damage over time
>>> is one thing, all valves crunched in one cylinder at once is something
>>> else.
>>
>> The rear wheel actually comes out while downshifting without hitting
>> the rev limit.
> Yes. Is that the scenario she's refering to? If so, do you think
> that's going to hurt the valves? It's not, so that's why I suggested
> she must have meant elsewise. Maybe the cam chain wasn't broken, but
> what if timing jumped from a loose or faulty tensioner? Based on what
> I've read here, I don't think this dealer is being straight with you.
>

Well I only spoke for about 10 minutes on the phone so far. I'll ask
additional and more specific questions once I actually see the damage on
Tuesday. No point in going too deeply into it over the phone. One
question is definitely going to be "So how exactly did this damage my
valves?"

--
Stephan
2003 Yamaha R6

君のこと思い出す日なんてないのは
君のこと忘れたときがないから
 >> Stay informed about: Definite Bad news on bike... 

"saddlebag" wrote in message

> On Sep 29, 5:16 pm, "Battleax" wrote:
>> "saddlebag" wrote in message
>>
>>
>>
>> > On Sep 29, 1:27 pm, "Battleax" wrote:
>>
>> >> What did they do other than sell a bike to someone who downshifts at
>> >> redline
>> >> (looking for power where there isn't any) , floats the valves and
>> >> blows
>> >> the
>> >> engine?
>>
>> > R6's don't have rev limiters?
>>
>> A rev limiter only works for acceleration, electronically. Downshifting
>> at
>> high RPM will spin the engine beyond it's limits, mechanically.
>
> Good point. Long live Desmos.

Right On!
 >> Stay informed about: Definite Bad news on bike... 

"Stephan Rose" wrote in message

> On Sun, 30 Sep 2007 08:36:38 -0400, D wrote:
>
>> "Stephan Rose" wrote in message
>>
>>> On Sun, 30 Sep 2007 07:51:43 -0400, D wrote:
>>>
>>>> "~kurt" wrote in message
>>>>
>>>>>D wrote:
>>>>>>
>>>>>> Sure, there won't be any ignition, but he's still going to rev past
>>>>>> redline
>>>>>> if he downshifts at redline. Depending on how much traction he has
>>>>>> at the
>>>>>> back anyway.
>>>>>
>>>>> I didn't get the impression that he was over rev'ing it - just that
>>>>> he was always running near redline, and even downshifting when well
>>>>> into the power band looking for more power.
>>>>>
>>>>> - Kurt
>>>>
>>>> In the other thread Dealerhip Results, Stephan said, refering to the
>>>> lady at the dealership:
>>>> *The primary cause she said was my habit of downshifting at high
>>>> enough rpms causing my rear wheel to slide
>>>> because of the shift. She's seen multiple bikes before suffer valve
>>>> damage over time as a result.*
>>>>
>>>> She had to be talking about valve float rpms, and suggesting that if
>>>> the rear wheel came out while downshifting, he must have hit 'em. One
>>>> gear at a time usually isn't a problem, but two or three quick
>>>> downshifts under braking before the bike's speed drops enough can
>>>> hurt. Saddle asked if the bike had a rev limiter. I was just
>>>> explaining that wouldn't prevent this. A slipper clutch would. Not
>>>> sure that this even applies here. I got the impression Stephan was
>>>> just tooling along at about 70 when it quit. Valve damage over time
>>>> is one thing, all valves crunched in one cylinder at once is something
>>>> else.
>>>
>>> The rear wheel actually comes out while downshifting without hitting
>>> the rev limit.
>> Yes. Is that the scenario she's refering to? If so, do you think
>> that's going to hurt the valves? It's not, so that's why I suggested
>> she must have meant elsewise. Maybe the cam chain wasn't broken, but
>> what if timing jumped from a loose or faulty tensioner? Based on what
>> I've read here, I don't think this dealer is being straight with you.
>>
>
> Well I only spoke for about 10 minutes on the phone so far. I'll ask
> additional and more specific questions once I actually see the damage on
> Tuesday. No point in going too deeply into it over the phone. One
> question is definitely going to be "So how exactly did this damage my
> valves?"
>
> --
> Stephan
> 2003 Yamaha R6
>
> ????????????????
> ??????????????

Good. Tell them we're paying attention too
 >> Stay informed about: Definite Bad news on bike... 

saddlebag wrote:
> On Sep 29, 11:00 am, "TroytheTroll" wrote:
>>> However, that turns out not to be the case. The damage that occurred was
>>> not related to their work.
>>> --
>>> Stephan
>> Did they speculate as to why it happened?
>
> Wheeliekings R1 lasted 80k miles with only oil changes. Of course, he
> probably didn't get to redline it quite as often as a guy living next
> to the autobaun.
>

Is that the guy that installed a turbo and did wheelies at 130+? I
never got the impression he was babying that bike.
 >> Stay informed about: Definite Bad news on bike... 

On Sep 30, 11:23 pm, timeOday wrote:
> saddlebag wrote:
> > On Sep 29, 11:00 am, "TroytheTroll" wrote:
> >>> However, that turns out not to be the case. The damage that occurred was
> >>> not related to their work.
> >>> --
> >>> Stephan
> >> Did they speculate as to why it happened?
>
> > Wheeliekings R1 lasted 80k miles with only oil changes. Of course, he
> > probably didn't get to redline it quite as often as a guy living next
> > to the autobaun.
>
> Is that the guy that installed a turbo and did wheelies at 130+? I
> never got the impression he was babying that bike.

He was the "less typing, more riding" guy. He never bothered to check
the valves, I remember that much.
 >> Stay informed about: Definite Bad news on bike...