grib Posted February 5, 2012 Report Share Posted February 5, 2012 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. Quote Link to comment Share on other sites More sharing options...
axulsuv Posted February 5, 2012 Report Share Posted February 5, 2012 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 Quote Link to comment Share on other sites More sharing options...
grib Posted February 5, 2012 Author Report Share Posted February 5, 2012 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. Quote Link to comment Share on other sites More sharing options...
grib Posted February 5, 2012 Author Report Share Posted February 5, 2012 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? Quote Link to comment Share on other sites More sharing options...
lee harris Posted February 5, 2012 Report Share Posted February 5, 2012 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 Quote Link to comment Share on other sites More sharing options...
02-apr Posted February 5, 2012 Report Share Posted February 5, 2012 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. Quote Link to comment Share on other sites More sharing options...
grib Posted February 5, 2012 Author Report Share Posted February 5, 2012 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. Quote Link to comment Share on other sites More sharing options...
turbo Posted February 7, 2012 Report Share Posted February 7, 2012 Re viton seals, try simply bearings via google ,good web site super fast service,they will have the seals that you need. Quote Link to comment Share on other sites More sharing options...
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