I've a quandary ?

[roddy]

folks, looking to pick your brains on this one

'04 R1150GSA approx 30K miles

I used to have the bike fitted with a y-piece and remus exhaust and it used very little oil if any, now over winter decided on a change so fitted 17" cast wheels and refitted the cat and a stubby and it now seems to use oil at a fair old rate ?

now in my world, a less restrictive system means less back pressure so an engine could use a bit of oil as it get blasted out the pipes ?

the system currently on sounds quieter than the y-piece/remus which in my head means the cat is more restrictive ? but it appears to be using more oil there no loss of power if anything there feels more mid range.

anybody any thought as I'm a bit perplexed with this un

Thanks

 

[Coolcarbon]

I carried out similar changes a few years ago but also made a hole in the 'Cat' Matrix to allow more gas flow...

No change in oil consumption for me, uses a wee bit, but as we all know, these boxer engines can be mighty fickle and all show slight variations on a theme depending on circumstances and use...

 

[roddy]

cheers for that CC , I did a few miles today and the oil seems okay ?

I'll keep an eye on it, just in case