[solly]

Originally Posted by akshay4587

Its the air intake snorkel below the seat.
and the bleak performance of zma that was being talked about was at hig altitudes 12K ft+ here the air pressure is low as compared to the plains so the air fuel mixture comes to normal if you use a free flow filter without upjetting.

Akshay what part of this snorkel should be removed for better performance in high altitude?? By free flow do you mean a replacement filter or a conical filter connected directly to the carb??

[akshay4587]

Originally Posted by solly

Akshay what part of this snorkel should be removed for better performance in high altitude?? By free flow do you mean a replacement filter or a conical filter connected directly to the carb??

Just below the seat,you have that air intake snorkel or pipe what ever you may call it.
You can just pull it out with a little force,to put it back in,you will need to open the Airbox.

By a free flow filter i meant a K&N or a UNI conical filter,either directly on carbor in the airbox without the cover(this is how i have it on my zma)

[Sankar]

Originally Posted by akshay4587

Just below the seat,you have that air intake snorkel or pipe what ever you may call it.
You can just pull it out with a little force,to put it back in,you will need to open the Airbox.

Hi Akshay, does removing the snorkel produce any considerable difference? Looking at the shape of the i guess removing it would hurt the airflow.

[akshay4587]

Originally Posted by Sankar

Hi Akshay, does removing the snorkel produce any considerable difference? Looking at the shape of the i guess removing it would hurt the airflow.

i guess you had already done it on your zma?
while riding in normal conditions it doesnot cause any noticeable difference apart from that intake roar.
at high altitudes it does help because air fuel mixture ratio adjusts itself to normal because of less air

[solly]

Originally Posted by akshay4587

By a free flow filter i meant a K&N or a UNI conical filter,either directly on carbor in the airbox without the cover(this is how i have it on my zma)

Hey thanks for the tips.. What performance diffrence did u see after the air filter change?? Did you go for any high altitude rides with the current setup?? If yes, how did the bike perform? What is the exact model # of the filter you have? Can you post some pics pls.

Thanks

[Sankar]

Originally Posted by akshay4587

i guess you had already done it on your zma?
while riding in normal conditions it doesnot cause any noticeable difference apart from that intake roar.
at high altitudes it does help because air fuel mixture ratio adjusts itself to normal because of less air

No i haven't done it. What i have done is I removed the intake resonator but not the intake snorkel. I'm thinking of putting an UNI/some other foam filter inside the airbox.

Btw, do you know the outside diameter of the pipe that comes from the carb & terminates inside the airbox?

[akshay4587]

Originally Posted by solly

Hey thanks for the tips.. What performance diffrence did u see after the air filter change?? Did you go for any high altitude rides with the current setup?? If yes, how did the bike perform? What is the exact model # of the filter you have? Can you post some pics pls.

Thanks

i used the filter for like 20K kms without upjetting
recently upgraded to a 140 main jet.bike just feels more torquey now
cant notice any drastic change in performance since she is 55K+ old now still going strong.
Havent ridden her recently to any high altitudes but yes difference was felt when I rode her to 11K+ feet with a stock filter and then a K&N.

I am using K&N RC -1060 on my bike as of now


As for performance difference,a close friend of mine took his brand new stock zma to ladakh in 1st week of september,and according to him it was just losing out on power on steep slopes,he just removed the snorkel from below the seat and bike was performing as if it was on plains

[akshay4587]

Originally Posted by Sankar

No i haven't done it. What i have done is I removed the intake resonator but not the intake snorkel. I'm thinking of putting an UNI/some other foam filter inside the airbox.

Btw, do you know the outside diameter of the pipe that comes from the carb & terminates inside the airbox?

which intake resonator you are referring to? didnt get you here,

UNI is the best but i wouldnot recommend it on a zma because it will make a zma run horribly lean even with a 140 jet since the amount of air it allows is quite a lot compared to even a K&N

[fieroid]

Hmmmm, some serious jetting gyaan!

[Sankar]

Originally Posted by akshay4587

which intake resonator you are referring to? didnt get you here,

UNI is the best but i wouldnot recommend it on a zma because it will make a zma run horribly lean even with a 140 jet since the amount of air it allows is quite a lot compared to even a K&N

When you take off the side panel on the right side you will see a small stubby box sitting over the airbox pipe. That's the intake resonator.

Which 140 main jet did you try?

Oiled K&N flows better than oiled UNI.

[SunnyBoi]

Originally Posted by Sankar

I'm thinking of putting an UNI/some other foam filter inside the airbox.

What is the purpose of putting a free flow filter INSIDE the airbox?

[akshay4587]

Originally Posted by Sankar

When you take off the side panel on the right side you will see a small stubby box sitting over the airbox pipe. That's the intake resonator.

Which 140 main jet did you try?

Oiled K&N flows better than oiled UNI.

the 140 jet was stock zma 125 jet bored out to 140

[akshay4587]

Originally Posted by SunnyBoi

What is the purpose of putting a free flow filter INSIDE the airbox?

I have the K&N inside the box with the cover taken off,its better
since it protects it from water getting in during washing and some extreme rains

[Sankar]

Originally Posted by SunnyBoi

What is the purpose of putting a free flow filter INSIDE the airbox?

To eliminate the paper element filter. I would like to retain the nice big pipe that goes from the airbox to the carb.

Originally Posted by akshay4587

the 140 jet was stock zma 125 jet bored out to 140

Okay, which jet did you use for reference? Or did you use a 1.4mm drill bit?

[akshay4587]

Originally Posted by Sankar

To eliminate the paper element filter. I would like to retain the nice big pipe that goes from the airbox to the carb.


Okay, which jet did you use for reference? Or did you use a 1.4mm drill bit?

Yes it was drilled but i did not do it since i did not get any drill that was as thin.
i got this jet from pune through a friend.
I had tried boring out the jet on my own once and had failed miserable since it was bored to out to almost double of 125 and the bike just refused to move