Engine quit, what to expect?

[gbic1]

First time out this year my son killed my my 98 Vmax 700 with 5,500 miles. It has always been a good sled and well maintained. I was not ridden last year due to lack of snow. I cleaned the carbs this year and added 5 gallons of fresh gas and Seafoam. About half way through the first tank while riding the lake at WOT in heavy power it died. When I got there I popped the hood and it started but run poorly. I pulled the right wire and it died. I reinstalled it and pulled the middle plug and the right plug and it did not die. Had spark on both dead cylinders. With it running I but my finger over the plug holes and I could hold on with it not blowing the finger off. I took the belt of and towed it to a bar then loaded it on the trailer. I would guess he worked it too hard and burn the pistons. Do these usually ruin the cylinders? I will tear it down this week and load pictures. Just kinda curious what I am looking at. Thanks.

 

[Devilin AblueDress!]

Really hard to say until you open it up. The best/fastest way to get an idea what your in for is to pull off the exhaust manifold and take a look at the exhaust side (usually the worst side) of piston) and the back side of cylinders. Probably not horible as it didnt seize up. You say cleaned carbs and added fresh fuel to how much 2 year old fuel/varnish? Givin 2 years for ethanol to pull water from the air then seperate into white slimmy jelly balls to end right back in the carbs plugging them up and......BURN DOWN! May not have ben "overworked" Look for a defined root cause or it may happen again.

 

[braindead1684]

I depends how longs it ran after it blew up, the longer the worst the cylinder, sometimes you can hone it out other times sleeve/replate Hopefully for your wallets sake it isn't too bad