Secondary butterflies

[oddshapedballs]

Anyone removed/changed the secondary butterflies on their 990 Adv? Does it make any difference?

I was also thinking K&N Air Filter, worth it? I have FMF pipes, will it need a map if I put the K&N in?

Cheers.

 

[oddshapedballs]

Anybody? Come on, don't be shy now

 

[Schtum]

I was also thinking K&N Air Filter, worth it?

Only if all you want to do is save a bit of money on air filter changes over the next few years and a fair few miles. Apart from that, all you'll do is perhaps gain a bit of airbox noise when cracking the throttle, possibly upset the fuelling and definitely compromise the filtration in comparison with the OEM filter.

 

[rocky burns]

Only if all you want to do is save a bit of money on air filter changes over the next few years and a fair few miles. Apart from that, all you'll do is perhaps gain a bit of airbox noise when cracking the throttle, possibly upset the fuelling and definitely compromise the filtration in comparison with the OEM filter.

Second that with the air filter....

 

[bandit]

K and n

I fitted a k and n with standard end cans.



Engine did feel i bit perkier, though i might have imagined it due to increased induction noise

 

[oddshapedballs]

How about removal/shape change of the secondary butterflies?

 

[*spikey*]

Check out http://www.ktmsmt.com/viewtopic.php?f=13&t=5414

He's also got a downloadable booklet on all his work, just can't find the link at the minute....

 

[*spikey*]

Check out http://www.ktmsmt.com/viewtopic.php?f=13&t=5414

He's also got a downloadable booklet on all his work, just can't find the link at the minute....

Apologies, gin works on a Saturday night... the link is to work on an SMT, but the engine is the same in the Adv isn't it?