Never forget your oil

Hi every one After a good day out with some nice weather for once!
my bike lost power coming down the A34. So after pulling over right away and turning it off i looked at the oil window it was dry i did put a liter in and it started knocking i am thinking bottom end bearing my be?
Any info would be good.

[Red Herring]

Generally by the time the bike loses power and you notice it you're to late to save the engine just by putting some more oil in.... If you're lucky it will be just the bottom end shells, if you're not it will have fried the top end as well!

I did turn it off as soon as it did loose power! I am hoping the pistons and barrels are ok. Would it be a big job for a motorcycle place to do the bottom end bearing replace or cheaper to get a engine put in?

welcome to club of knackered engines your not the only one on here, someone is on number 4 or 5 i think and its most like going to need a complete rebuild or a simple replace. either way im glad its not me doing it.

And +1 to red herring you will need to investigate the little ends as well if you rebuild it.

Thanks Sunshine made me feel little better lol
I am gutted tho not had it long 07 plate looks mint and went well or did i think i am going to take it in to a place down the road and beg them to not charge the earth.

Originally Posted by bigjonnysv650s

Thanks Sunshine made me feel little better lol
I am gutted tho not had it long 07 plate looks mint and went well or did i think i am going to take it in to a place down the road and beg them to not charge the earth.

do you have a cage? drop the engine out take it to an engine expert DO NOT ride the bike until its fixed even with oil, better to be safe than sorry, most garages will simply recommend a straight change for a new/working second hand one, not really cheap but could be cheaper than a rebuild if its got top end trouble.
im happy i have never had to rebuild a 4 stroke engine, 2 strokes are a completely different story tho.
do you know much about rebuilding engines yourself? its quite easy really order a new complete gasket set, all new bearings (while you in there replace them all). and get ready to find out how much damage there is, as you take the head off be very careful not to scratch or damage it.

quick look shows new engine is £250 appox (second hand) or gasket costing £123 then bearings and other parts needed.

I dont have a cage nor do i no much about engines which sucks I would rather try and save the old motor really if i can.
Would the head gaskets need replacing etc?

[G]

There was an anagram I was taught even doing my cbt, can't remember what it is now but it involved that checking Tyres, lights, water and oil everytime before you go out on a ride.

When was the last time you checked the oil, prior to this event? I check mine every time I fill up with fuel (about 120 miles or so). It dosn't use much (maybe 200 ml in 1000 miles).

Reminder...oil lubricates, cleans and cools

I think if you split the engine apart, you will need all new gaskets. I suspect if you have the knocking noise, you'll want the engine apart. If it were my bike, and I wanted to save the engine as much as possible, I wouldnt be riding it. The first thing you should do at least is drain the existing engine oil and get some fresh stuff in - any shards of metal will be suspended in the oil thats in there, so first things first...get rid of that debris!

[christopher]

Originally Posted by G

There was an anagram I was taught even doing my cbt, can't remember what it is now but it involved that checking Tyres, lights, water and oil everytime before you go out on a ride.

Quite often got told 'power' by my instructor, or 'powder' if you want to include Damage in it.

Petrol
Oil
Water
Electrics (Lights)
Rubber (Tyres)