That seems logical, and was my dealers thought process as well WITH MY THIRD REPLACEMENT 3 weeks ago however after cleaning it all including the excess grease from installing said 3rd replacement - mine still leaks.My bike now has 3300 miles on it... no leaks. Like many others, when that cheezy CZ chain was on there it would throw lube which melted and dropped off the oil filter and oil screen housings. It looked like a CS seal leak.
When I replaced the chain and sprockets, I cleaned behind the CS sprocket thoroughly and installed the new sprockets and chain. I also cleaned the inside of the CS sprocket cover, and I cleaned the new chain thoroughly too with kerosene because it had that nasty white grease all over it.
Just got back from a 200 mile plus ride in warm weather, and there is no oil sheen or liquid down there any more. I think dealers are replacing good seals with good seals but the seals are not the problem. That crap CZ chain with all the excess lube on the outside and none inside where it counts is the problem.
I have done around 17k without a problem but reading various comments on different sites, it is obvious that many owners still don’t understand how you are supposed to adjust the chain on 790s (i.e on paddock stand, lower chain run within 2-5mm of underside of swingarm etc)Just out of curiosity, wondering how many have experienced this issue repeatedly. I had mine fixed at the first service, and subsequently about ~3000kms since then with no issues - a friend of mine however, is on is FOURTH replacement.
Thanks John.I had the leak from new, but had the seal replaced at the first service and it has been bone dry since then (about 1000miles since the repair). My dealer mentioned that the replacement part had to be ordered and has an updated part number and is slightly different from the original. It's possible that some dealers have old stock on the selves and are replacing with that? Just a thought, but worth an ask to your dealers if still having the problem after replacement.
thisI had the leak from new, but had the seal replaced at the first service and it has been bone dry since then (about 1000miles since the repair). My dealer mentioned that the replacement part had to be ordered and has an updated part number and is slightly different from the original.