7 replies to this topic

[Grib]

Should you oil Fantic air filters? I have got a 240 at the moment and I have a vague recollection of Bill Pye telling me to run the filter dry with no oil, but that may have been for my 301 or 245 - can't quite remember. I am getting quite a bit of smoke from the exhaust at the moment and it gets a bit woolly when I open the throttle up a climb. I have just cleand the exhaust out thinking it could be that but I did a trial yesterday and it was still the same. I cleaned and oiled the filter recently (after 3 years not riding the bike) and am now wondering if that is the cause.

[axulsuv]

You may want to check the oil level in the gearbox ... Maybe time for main seals after sitting so long .
And what fuel/oil ratio are you running ? I run a K&N air filter in mine ,But the owners manual (in italian ) does mention Bel Ray Mc6 in the air filter service section and I know that is air filter oil !
Glenn

[Grib]

Thanks Glenn, I have the owners manual(Bob Wright has the english version on his website to download), but I wanted to know what people are actually doing. I hope you are wrong about the crank seals - I dont fancy stripping the engine at the moment - too much to do. I will check how much gear oil is left, yesterday's trial was an 18 mile lap so if the clutch side seal is leaking it should show up.

[Grib]

So, I have got about 410-420 cc of oil out of the gearbox, I put 500cc in about 4 trials ago - does that seem like a seal that has just started to leak?

[Lee Harris]

YES; LIGHTLY OIUL THE FILTER AND YES THE MAIN BEARING SEAL IN GONE: tHE ENGINE NEEDS SPLITTING ON A 240 TO DO THIS:::QUITE STRAIGHTFORWARD THOUGH: pUT NEW MAINS IN AS A MATER OF COURSE-----.iF IT WERE me, A ROD ALSO: tHEY ARE NOT EXPENSIVE HERE:::MAIL ME IF YOU NEED A SOURCE

CHEERS

lEE

[2/4]

Lee Harris, on 05 February 2012 - 08:11 PM, said:

YES; LIGHTLY OIUL THE FILTER AND YES THE MAIN BEARING SEAL IN GONE: tHE ENGINE NEEDS SPLITTING ON A 240 TO DO THIS:::QUITE STRAIGHTFORWARD THOUGH: pUT NEW MAINS IN AS A MATER OF COURSE-----.iF IT WERE me, A ROD ALSO: tHEY ARE NOT EXPENSIVE HERE:::MAIL ME IF YOU NEED A SOURCE

CHEERS

lEE

Don't know what the difference might be but I have changed the seals on a 200 without splitting the cases.

[Grib]

2/4, on 05 February 2012 - 08:48 PM, said:

Don't know what the difference might be but I have changed the seals on a 200 without splitting the cases.

The clutch side seal is inside the main bearing on a 240, so unfortunately you have to split the cases. Lee do you know where I can get Viton crank seals from, if I am remembering correctly the last clutch side seal I put in wasn't Viton but the ignition side was.

[TURBO]

Re viton seals, try simply bearings via google ,good web site super fast service,they will have the seals that you need.