I've been looking at removing my airbox from my 1984 XT600, but I was told by a Yamaha mechanic it wouldn't run well due to the lack of back pressure...is there any way around this? Anyone ever used cone style filters only?

Thanks,

Drew

i havent done it but if you do you will deff need to get it set up on a dyno to get the mixture right.

Yamaha go to great lengths to get the set up on a motorbike spot on then we come along and put on loud exhausts and foam filters and mess it all up!!!

You'll have to set the bike up for sure - carb jets will have to be bigger (both sets).

Not too sure how much you'll benefit from it - keep us posted!!!

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Tom

GSXR 1100 Streetfighter
CG 125 Cafe Racer Track Bike

Not very RTW

As well as needing rejetting, the induction noise will be very loud & possibly annoying.
I removed only the forward facing snorkel on the top of the airbox on my 2001 XT600E, hoping for more power but made no difference, but the induction noise was very loud.
Bob

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Remember that Assumption is the mother of all f**k-ups.

PLEASE, be kind to your XT.

the Airbox n filter arrangement is the best way of keeping dust out of your engine, and making sure the mixture is perfect..... ANY messing with the filters will make the carb a to set up.

as has been said, Yamaha spend $$$$$$ getting it right, what makes us think we can do better?

Iv tried k and n type filters on my srx4, had no running problems but had to cut the airbox away and i was never happy with the fit. There isnt much room between the carb mouths for the flange of the filters to fit. Certainly unacceptable for dusty conditions. Currently im running a home made foam filter with the new xt6e engine, 20mm filter foam in a small airbox type design in what little space i have (the new stainless oil tank takes up where the airbox was). Im happy with the performance but was expecting to rejet anyway as the exhaust is far from standard. Currently shes running well, any fine tuning of jeting is nt urgent.

Thanks for the feedback. I was only asking b/c my bike took a nasty fall right into a rock and broke my airbox...what luck. Anyway, I've ordered a new airbox and will promptly put it back in b/c I agree Yamaha took time to design it and I figure it's supposed to be in place.

Good luck fitting your new airbox.
It is a full stripdown job, everything remotely close to it is in the way .You just can't get them in or out any other way!!!

You have been warned!!!

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Tom

GSXR 1100 Streetfighter
CG 125 Cafe Racer Track Bike

Not very RTW

Thanks Tom, but I remember the zigsaw puzzle from when I dis-assembled the bike to paint the frame.

Andrew

I'd attest to that! , I was attempting to change the air filter and undid about 15 screws wondering why nothing was coming loose to change the air filter,

Undid the seat undid the airfilter cover (a good place to hide cash me thinks!) and found that the airfilter was very clean anyway

Next time, make sure you have your BFH (Big Freaking Hammer) handy...works everytime!