how bad is it

[blackgpz at rochester.rr.com]

IMO, if it's a spun rod bearing, it's not worth repairing on a 14 YO motorcycle. It's a "split the cases" repair requiring grinding of the crankshaft (or maybe a new one), a new connecting rod and bearings, a thorough cleaning of the motor internally to get all the metal particles out etc. Your cheapest option is to find another complete lower end from a ZX11 and swap it out. Spinning #3 rod bearing is a common though infrequent problem with the late model GPZ and ZX11 lower ends. The oil level should be kept at the top of the sight glass to prevent any chance of oil starvation to that bearing. There are "fixes" involving internal or external modification to the oil pan to increase oil flow (not pressure)to the #3 rod bearing that are in the $150 range. It's not going to be a cheap fix any way you look at it.

Steve

---- corbie at verizonmail.com wrote: 
> I did not notice the oil light while riding. when I got to the end of the off ramp it stalled and the light came on but it should. it stalled as I slowed down to turn into the parking lot and again when I stopped in the lot. if it is a spun bearing what was a possible cause and could it be prevented. and worse since I don't really have space and have never tackled a job like this , how much would a repair be. a good estimate ?
> thanks bill m
> > 
> > 
> > One more question, did the oil light come on? Typically when you 
> > spin a bearing, your oil pressure pretty much goes to zero.
> > 
> > Steve in Western NY
> > '96 GPZ1100
> > '08 KLR 650
> > "You Can't Fix Stupid", Ron White
> > 
> > ----- Original Message ----- From: <corbie at verizonmail.com>
> > To: <gpzlist at micapeak.com>
> > Sent: Sunday, March 22, 2009 6:40 PM
> > Subject: how bad is it
> > 
> > 
> > I think it's just a valve making all that noise. I know trouble 
> > shooting is not easy by watching a 13 second video clip.
> > I was on the way home from a Ducati/BMW demo ride , cruising along 
> > with traffic on the hiway when the engine noise became louder than 
> > the exhaust. I got off at the next exit and decided it would be 
> > best to trailer home. lucky for me I was with a friend and got a 
> > ride home on his K1200S. I haven't rode passenger since 1980.
> > I'm having a friend take a look some time this week but would 
> > appreciate any opinions
> > thanks much Jersey Bill M
> > 
> > http://www.youtube.com/watch?v=dHoGvO_u4Ic
> > 
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> >
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> 
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