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Hi guys.  Just picked up my first VFR, wasn’t expecting to buy one but at the price it was a steal.  She’s been stood for a long time, perished tyres and all.  Battery charged, fired up first time, a little white smoke.  I’ve cleared the codes, changes the coolant too.  When draining the oil, with a warm engine, I was amazed at the amount in there.  10.5 litres of very thin, clean, fuel smelling oil.  Book says around 3.1L.  What do on earth is that all about? Thanks guys, Chris 

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Welcome to the forum Roguewilly. Tell us you drained out the 10.5 litres of oil and refilled correctly before you fired her up!

 

Difficult to imagine why anyone would put so much oil in unless they thought it would act as a preservative.....

 

What year VFR is it? Any photos?

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Very thin, fuel-smelling oil and lots of it would indicate a leaking fuel injector. The tank is quite happy to gravity feed through the pump to the fuel rail, and if an injector is stuck open it can allow a quantity of fuel to drain into a cylinder, past the rings and into the crankcase. Good thing that you changed that out promptly, bad things can happen with so much fluid in the crankcase, and you likely have ejected some excess oil up to the airbox through the crankcase breather, which might explain a bit of smoke. Open the airbox up and take a look, a little oil mist is normal but not much in liquid form.

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And to add to the good advice above......

 

Check for a ruptured diaphragm in the Fuel Pressure Regulator. If ruptured it will dump fuel into cylinders 3 and 4. via the vacuum hoses.

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Thanks for the advice and the welcome guys.  It’s a 2002 Vtec.  I changed out the air filter, a K&N which was dirty but not wet.  Forgot to mention that the bike hasn’t Been MOT’d for nine years so could well have been sat for that long with fuel in the tank. Long enough for good tyres with plenty of rubber left to perish beyond riding. I’m going to keep my eye on the fuel level and if it starts to rise I’ll check out the injectors.  

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47 minutes ago, Roguewilly said:

Thanks for the advice and the welcome guys.  It’s a 2002 Vtec.  I changed out the air filter, a K&N which was dirty but not wet.  Forgot to mention that the bike hasn’t Been MOT’d for nine years so could well have been sat for that long with fuel in the tank. Long enough for good tyres with plenty of rubber left to perish beyond riding. I’m going to keep my eye on the fuel level and if it starts to rise I’ll check out the injectors.  

 

If you have either bad injectors or a ruptured FPV you should certainly notice poor running and terrible fuel economy. The FPV is an easy thing to check, so might be worth checking this before moving to the injectors.

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