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I think my engine blew up??

7.4K views 28 replies 17 participants last post by  md8181  
#1 ·
Not sure what happened or why....
I have an 06 750. I changed the oil on Wed night, everything was fine, rode thursday night, and all day yesterday.
Yesterday afternoon, I was on the hwy cruising aroun 85-90 in 5th gear and bike kind of bogged, I thought I chopped the throttle for a second and then it happened again and again. Then out of the corner of my eye I saw something so I turn around and all I see is white smoke...tons of thick white smoke...As I'm pulliing over it dies. now it wont crank, and doesn't sound normal when trying to start it.

I'm thinking I dropped a valve and messed up a piston, or something.
Could it be a head gasket??
Everyone's oppinions and help would be GREAT!!
I don't even know where to start. I don't know what I'm going to do....If I should part it out, and get something else of get another motor to drop in or what...Bike looks like show room condition and I love it so I don't really want to part it out..

Thanks.
 
#2 ·
Sounds like you have a very serious issue, probably very expensive, and I hope it's covered under warranty.
 
#3 ·
STEALerships dont charge you for asking questions.... so i always go and talk to some of the mech's over there.

try them if you get nothing here.
 
#5 ·
Same exact thing happened to me on my 2000 gsxr600 on this sunday except I was going slightly faster and I was in sixth... I blew a rod (no dirty jokes)
Seems that the bearing on the connecting rod failed and then the engine just chewed the piston up and spit it out, along with the rod, through the side of the crank case.
The only reason I know this is cause all the oil came flying out and the parts were in the bottom of the bike where the fairings come together. Some of them melted the plastic and stuck.

Whats left of the piston:
Image

The failed bearing:
Image

Bent Rod:
Image
 
#7 ·
Tearing it down and fixing the problem (whatever it may be) is going to cost you more than getting a used motor online. But if you go that route, I suggest getting aftermarket pistons/rods since the stockers are bloody expensive anyway.

Taking the motor out and putting a new one in on the other hand, only takes a few hours. And you can get them for under 1000 bux online.The manual in the TECH section will be very helpful to you.

You can always part out your old motor to help finance the situation.
 
#8 ·
That's what I would do, get a low mileage used motor. You can have installed in less than a day if you are good with tools and know what you are doing
 
#9 ·
Nothing came out of mine like that just smoke and oil from the exhaust.
So my best bet is to start by pulling the motor myself?? Don't mess with Suzuki??
I called the dealership and they said I may just need to get some head work done or rebuilt.
I don't know where to start with this crap
Help!
 
#11 ·
:headscrat:headscrat:headscrat:headscrat Hmmmm, ... What would I do ... ?
Well I guess the first thing I would do would be to check all my fluids to see what, if anything foreign is in something that it shouldn't be. (Oil in the water, water in the oil, metal or bearing material somewhere). Also check for any external leaks or ruptures in the engine assy. I would also pull the plugs to see what they look like. By looking at the plugs you could at least identify what cylinder or cylinders is/are causing the problem. Depending on what you find, you might want to do a compression and or leak-down test to further your diagnosis.
Why don't you start there before you go throwing money at it with out knowing for sure. :thumbup:
Knowing what happened and why will help you in the future to know what you did or didn't do. .... Let me know what happens and what you find.
THE
DOBERDEWD
 
#13 ·
white smoke is generally from coolant. youll get blue smoke from oil, and you said it turns over still, and just wont start? it was unclear how you said it. start by checking your oil, drain it out and look in the pan you drained it, is it metallic looking or is the amount there low. and check your coolant level, is that low? and the last thing you can do to start to diagnose the problem is pull out the spark plugs, look at each one if you see metal shavings or anything like that go with a new motor. but if you oil looks fine and you cant see anything on the spark plugs id look into a rebuild.
 
#21 ·
Ok first thing I did was pull the plugs...I got all of them out except for number 3...it was stuck...then I strong armed it and it broke off inside...GREAT!!!
I don't know if it was melted to the inside to a piston or something or if it was just really tight.
Other than that one the other 3 look normal to me.

Then I drained the oil, it was very metallic!! Then I poured some into a little bowl to get a good look and there was a good bit of little silver flakes. (metal shavings)

I opened up the radiator cap and stuck my finger in and it was full almost to the rim.

I took off my exhaust pipe and there was some gunk inside it and also 4 little chunks of chewed up metal. They were a little smaller than a bee bee.

Whats next?? Should I pull off the oil pan or just go ahead and start the process of dropping the motor??

Thanks again for everyone's advice. This is my first bike and my first bike engine failure.
 
#22 · (Edited)
If its a bearing and rings just try to remember dont rev the engine right after starting up and the engine is cool. The bearing have to be warmed up and oiled good or you run a chance of slipping one of them and that can block oil passageways. This of course leads to frying engine parts.

The bike isn't going any place so check each pistons spark plug looking for clues. After some cranking pull a plug at a time looking for water. The cranking might spit water out the head gasket onto the plug or plugs in the effected cylinder. If you are dedicated to leaning about engines or have practices that will have you busting another engine get a pressure gauge for reading cylinder pressure or just try cranking the engine with something pushed on the spark plug hole to see if one of the cylinders is missing out on compressing or vacume. Might not be a good idea to have a finger on the hole since during suction it might rip you finger up a little sucking on it depending on what the vavle train might be up to. Maybe just your timing went out.

Another trick is to not use just the engine for braking. Popping the clutch on the engine for engine braking dragging the engine into a high rev is a perfect way to blow a head gasket. I'm sure you have learned the engine revs faster engine braking than picking up speed. Slamming a high engine braking pressure on the heads like I said can blow a head gasket easily. Best practice is to be braking and engine braking.

So enjoy your troubles since it is going to teach you some things and I hope you at least learned something new with my input. The bikes are great but they need respect even a race bike would get warming up and not dumping the clutch out engine braking. Take care and all. I'm not ragging on you or anything just jabbering making sure some of the people get a clue as to how not to keep taking a chance and screwing up a perfectly good engine. I guess I ought to add an engine life is in revs. The higher revs brings parts to an end faster.
 
#23 ·
MD8181 ...
Sounds like you have done the necessary diagnostics to this point. It is obvious that you have had a catastrophic failure so you might as well remove the engine and prepare for disassembly for further inspection.
Make sure you have adequate space for the disassembly. A nice clean bench or table with plenty of space to keep the parts as you remove them.
Keep all your nuts and bolts together for the individual assemblies (cam cover, exhaust, head, pan etc).
What you are going to try to accomplish here is to determine what the cause of failure was, what parts are damaged and what parts are salvageable. Based on what you come up with, you can make your decision on $$$$$ .... rebuild or replace.
Keep us posted and speaking of posted, why don't you take a few pictures of the aftermath and post them. Would be interesting to see what happened ....

DOBERDEWD
 
#24 ·
MD8181 ...
Sounds like you have done the necessary diagnostics to this point. It is obvious that you have had a catastrophic failure so you might as well remove the engine and prepare for disassembly for further inspection.
Make sure you have adequate space for the disassembly. A nice clean bench or table with plenty of space to keep the parts as you remove them.
Keep all your nuts and bolts together for the individual assemblies (cam cover, exhaust, head, pan etc).
What you are going to try to accomplish here is to determine what the cause of failure was, what parts are damaged and what parts are salvageable. Based on what you come up with, you can make your decision on $$$$$ .... rebuild or replace.
Keep us posted and speaking of posted, why don't you take a few pictures of the aftermath and post them. Would be interesting to see what happened ....

DOBERDEWD
+1 This is what I would do.
Put all the parts in bags or containers, and label them accordingly. That will help with a rebuild, if you end up doing that.
Good luck.:thumbup:
 
#25 ·
used motor here

well i have a used 600 motor with only 1000 miles on it that i swapped out of a track bike that i built and have been trying to get rid of for some time now. i know its not the same size as you 750 but i am getting rid of it for cheap just 500 bucks so if you want to save some cash then let me know cause i am sure it will fit. still has the headers on it as well. pm me and let me know its for the same year bike as yours
 
#27 ·
well i have a used 600 motor with only 1000 miles on it that i swapped out of a track bike that i built and have been trying to get rid of for some time now. i know its not the same size as you 750 but i am getting rid of it for cheap just 500 bucks so if you want to save some cash then let me know cause i am sure it will fit. still has the headers on it as well. pm me and let me know its for the same year bike as yours
That's a great deal!
 
#28 ·
Well, I got the motor out on Friday. First I noticed a bunch of metal crumbs in the oil pan.
I took off the valve cover and there was tons of metal pieces in there. The head "casing" was all chewed up. On top of that I could see that at least 3 valves were gone, one spring was almost out of its hole, it was cut in half and bent all up..A valve stem came out and it was bent like a U.

So today I got the head off and WOW what a mess.
The number 3 piston has a valve sticking out of it and it's just all beat up. I took pictures with my iphone but I'm not sure how to post them on here, Ill try. If it doesn't work I can email them to someone else.