Gas in the oil, now tap tap-aroo

[nova]

Well, stored my 92 cb750 at my cousins place for almost a year while away at school with the stipulation that he could ride it as payment for storage. I guess to him that meant he didn't have to maintain it. About a month ago my car got totaled and i needed transpo quick fast and in a hurry so i convinced him to throw it in his truck and haul it up to me (bout a 5 hour drive). As soon as we got it unloaded i did a quick check over and started it up. Ran crappy, figured it was the carbs ,also had what sounded like lifter tap, that's when he told me he didn't winterize per my instructions. No prob just pull of the carbs and clean em out, might as well put fresh oil in too since he happened to mention that it was the same oil it had when i left it there. Here's where i get pissed. when i pulled the drain plug a wave of gasoline vapor hit my nostrils with enough pungency to bring a horse to tears. s???. Oil was thinner than water and little pretty shiny flakes of metal, which look good in paint but not in oil, were to be seen floating around. He put around 1400 miles on it but no telling how many  where with the gas-oil. Anyway i cleaned the carbs, changed the oil and crossed my fingers. No luck, its got a low end knock at about 3grand that doesn't go away when the clutch is pulled, and a lifter tick.

Looks like I'm pullling an engine, Here are my questions-

1. what else should i be looking at closely besides the bearings and cylinder walls, this is my first bike engine teardown. I have found some used ones on ebay but there is nothing like the satisfaction of doing it yourself(and it will be cheaper if its just bearings).

2.  are there any special tools-besides a torque wrench- i would need

3. who makes the best manual for these guys, i have the Honda common manual but would like one specific to this model

4. whats the best way to take it out on my cousin (he has no money)

Thanks for any advice or encouragement

[Bad Boy]

Something doesn't make sense here.  400 Miles is not very much.  I do that in a day.  A properly maintained bike should not have needed maintenance in 400 miles. 

It would be a good idea to have someone with bike mechanic experience listen that engine before you tear it apart. 

[nova]

Whoops forgot the 1, 1400 miles and knowing him there were probably more than a fair share of burnouts and wheelies im kicking myself for leaving it with him but was my only option at the time.

[Brittles]

Lessons hard learned.

[Munkey]

I think I can get you a service manual. PM me.

[Soupskin]

I can get you some steel toed boots for a serious ass kicking!

But seriously, good luck.

[Zardoz]

First off a con rod knock will make itself known when you roll off the gas. Under acceleration it disappears because there is pressure on the rods. The low end knock may well be crank main bearings. I am unfamiliar with the internals of this motor but on cars and trucks it will show up this way. And the oil pressure will drop slightly when you give a little gas if the mains are bad. I'm sure other more experienced MC mechanics can give you more info.

Next I would change the oil pump. Metal particles is BAD news! 
Finally: Borrow your cousins car until your bike is back on it's wheels...