2000 800 Fiy....strange Problem. Am I The First Guy To Blow A Vfr Up?

First of all hello to everyone on here..Choose this site out of the rest as it seemed the most informative.

Well to the issue concerned,i bought this bike last july 14,it had covered 63,000 miles,it now has 65,000. It came with plenty of service history,and had a major one the year i bought it including valve check.

A few weeks ago i replaced the battery it had a yuasa,because it was sounding a bit weak,so i replaced it with exactly the same.

Did a 100 mile run and it was fine,then left it for two weeks in around zero degrees temperatures.It started fine and rode back 100 miles again,ran fine.

The next day i went out and got caught out in a snow storm and the bike slid and and went down at about 20mph,only damage was top fairing and minor scuffing,strangely i rode it back to my house about 10 miles and it ran fine,a few days later it started but cut out when i put it into gear.I then noticed the sidestand switch was damaged,so i replaced it and it works fine,but i don't know why it still ran back like it :wacko:

Anyway after a week i decided to start it and there was a lot of brown/black smoke from the exhaust when revved,smelt very strong,but was running.

About a week later the battery was flat so i took the old yuasa battery out and tried it,it turned over but it fired up but sounded like it was only firing on two cylinders,and then a splatter of black oil drops came out of the exhaust.

I then took the battery of my ntv as it was fresher,and the bike just spun over but no firing at all,so i took the plugs out and they were all black and wet,so i cleaned them put them back in and theres a spark,but it just won't start now.So theres fuel and a spark,but don't really where to start,maybe a compression test?

most likely a combination of little problems.  The smoke / oil may be from oil seeping past the rings while it was on it's side.  the oil gathers in the airbox and seeps back in during combustion.

+1 on the crankcase oil getting into the cylinders when you crashed. Your engine's "tilt" kill switch should have mostly prevented such from happening, but maybe it did not quite cut out the engine quick enough and enough oil got pumped past the rings into the cylinders to cause fouling.

Check your plugs again to see if they are oily and black, if they are, that's why your engine stopped running all together as they are fouled.

Just change them over to new ones and see how it goes. It would be the first step I'd do to fix the bike.

Lift  the  tank  and open  the  air  box  and  see if  oil  has  filled  that area  or   a  nest  of  some  kind .

My first guess is that it's an electrical issue. Likely an old bike and being used in damp and cold conditions.

But if it spins and there is spark then maybe it's just flooded. 

What year is the VFR?

I might be the second if you are the first. Mine has had cooling issues since new. I think last summer it finally popped a head gasket in a traffic jam. Only has 30k on it.I've started tearing it down stopped just shy of removing the forward frame from the engine to do a little more research.

Its a 2000 model,just took the airbox lid off and there's no oil in there,and the air filter just looks like the same when i fitted it new last year,i'm tempted to try some new plugs first,i only just checked the charging a few weeks ago and it was fine.

Hmmm  you  can  the  plug  and  see if  the  are  fouled.