Tick tick clunk!
 

I've read many of the ticking posts of here and unfortunately none of them go to the extent my bike is at.

I had the ticking and a quick search led me to believe the issue was the valves, which was not an immediate concern, or wrong type of gas, and again not an overly immediate issue. So for the rest of the week I drove the bike to work as it is my only transportation at the moment. Well, tonight I had planned on changing the filter and the oil but after about 30 mins of riding how I heard what I guess is best described as a pop, or more like what you hear on the movies when a grenade is thrown down a foxhole. Anyways, the bike dies and I end up on the side of the road. The first attempt to restart actually had the motor turning, not firing but at least turning. The second attempt and all subsequent starts came up with nothing but a clunk. Not a click, but a solid metallic clunk.

Where do I even start. I noticed that the oil was very low. I know I checked the oil level not a week ago. So A, where did the oil go and B, am I totally boned and the engine is locked up.

My plan was to remove the starter and see if anything would turn by hand. If not i will start disassembling the entire motor and going from there I guess.

Anyone have any advice at this point?

Re: Tick tick clunk!
 

I don't want to jump the gun here, but that sounds like a piston hitting the spark plug. Pull the plug out and examine it. Start there.

Re: Tick tick clunk!
 

Ditto. Pull the plug and see what you see.

Re: Tick tick clunk!
 

Thanks guys. What should I be looking for?

Re: Tick tick clunk!
 

Any kind of damage at all. If there are metal flakes or indentions or anything along those lines. With a scope light, you should me able to eyeball if there is damage in there too.

It's weird that all of this stuff is happening to people recently. We've gone years here without any serious mechanical failures. I guess when it rains it pours.

Re: Tick tick clunk!
 

Not the best pics but I forgot to bring a boroscope home from work. Let me know what you guys think. I have the tank seat and carb removed so if I need to dig deeper now is the time I guess.

Re: Tick tick clunk!
 

I did want to ask since it looks possible, why does it mean if the piston is hitting the plug?

Re: Tick tick clunk!
 

...... Sorry dude. It's time for a tear down. :(

Has your oil level suddenly dropped as well?

Re: Tick tick clunk!
 

yes it has...

So if I tear it down, am I just looking for all the damage I can find, then replacing damaged parts, gaskets and seals?

If so does anyone know of a good tear down thread on here. I have tried searching but I haven't found anything yet.

This will be my first tear down and I need to do it efficiently as my wife is already on my backside about when she will have her car back. lol

Re: Tick tick clunk!
 

Just looking up engines but would a "81 19981 SUZUKI GS250 GS 250 T ENGINE MOTOR #5069" fit a 2008?

Just planning for the worst