Broken valve 3 cylinder K1100LT

[ICBMW]

I added too much additive to my '95 K1000LT and it ended up killing a valve and killing a cylinder. My mechanic killed the fuel injector to the dead cylinder and the bike runs a little rough but it runs in 3.

How long will the bike limp along like this? Another year? The Summer? Next month? Next week? Can I ride from DC to the Hudson Valley and back this summer? I really love the bike.

My mechanic told be the bike requires either a new engine or a laborious repair (he has a spare K1100 motor) and just wants me to get a replacement used bike (looking at an '83 R80RT).

What would you do? Any experience, any advice?

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[Chaos]

Probably won't hurt it more than is is hurt already.  I'd run it 'till it dies if it's not making weird noises or bursting into flames.  I ran my old Bronco with 7 cylinders for years, though my 40hp air cooled bug did not do so well on 3 cylinders.  Might want to re-badge it as a K-825.  Curious how an excess of additive could ruin a valve, you run straight SeaFoam or something?

[Martin]

Keep your Brick for spares and buy another K1100. Or if your Brick is in really good condition buy one with a good engine and keep it for spares.
Regards Martin.

[Motorhobo]

I added too much additive to my '95 K1000LT and it ended up killing a valve and killing a cylinder. My mechanic killed the fuel injector to the dead cylinder and the bike runs a little rough but it runs in 3.

I'm really sorry to hear about that but --- how could that possibly happen? How much is too much and what kind of additive so I can avoid it...

[ICBMW]

Probably won't hurt it more than is is hurt already.  I'd run it 'till it dies if it's not making weird noises or bursting into flames.  I ran my old Bronco with 7 cylinders for years, though my 40hp air cooled bug did not do so well on 3 cylinders.  Might want to re-badge it as a K-825.  Curious how an excess of additive could ruin a valve, you run straight SeaFoam or something?

Pretty much ran way too much Seafoam, yes. Won't do that again. You nailed it.

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[ICBMW]

I'm really sorry to hear about that but --- how could that possibly happen? How much is too much and what kind of additive so I can avoid it...

I really overdid the Seafoam. I poured instead of measured. It was really stupid of me, I know now. It's powerful stuff. Learn from be. Measure. It's good stuff but my 5.1 gallon tank isn't a 33 gallon Bronco tank.

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[ICBMW]

greetings...

i have run as much as 4 20oz bottles of techron in 1 tank of no corn ethyl...

i have run as much as 2 cans of seafoam in 1 tank of no corn ethyl...

i do this every spring after i run out the old marine stabil no corn eyhyl from hibertnation...

i find it suspecious that either would cause whack...  butts im taching my heaps up flirting with the rev limiter...

j o

Well, before it happened I was running the bike high revs. Not red line but 7k. To try to clean shit out. Not to the redline but high up there. Like a gear or two below what I usually run. Maybe it just broke. Maybe shit just happens. No compression at all on one cylinder. You're an additive badass.

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[Laitch]

My mechanic told be the bike requires either a new engine or a laborious repair (he has a spare K1100 motor) and just wants me to get a replacement used bike (looking at an '83 R80RT).
What would you do?

Why would you buy an R80RT instead of replacing the engine on a bike you like? The R80RT is well-regarded around here but it's a different animal than the K1100.

What I would do is not ride a bike that could not give me the performance I want to avoid trouble or conserve fuel.

[Chaos]

I now have a weird desire to try SeaFoam in all my internal combustion devices.  If it can dissolve a K1100 valve the bottle must be full of something besides hype!

[ICBMW]

What I would do is not ride a bike that could not give me the performance I need to avoid trouble or conserve fuel.

I am madly in love with my K1100LT and named her Pōni. She's powerful enough, she had a solar battery tender, I have ABS, 100hp, two hard case side bags and a top box, and it sounds like a sewing machine!



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[Laitch]

I have . . . 100hp . . .Ō

Well, you used to have that. :giggles  It sure sounds like a replacement engine is in the works then you can rename her Pōni Up.

[Elipten]

So what is wrong with it?  Needs a valve job?  If so not a big deal.


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[The Mighty Gryphon]

Did it swallow the valve?