ethos jetting
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- Deviant400
- Site Supporter
- Posts: 769
- Joined: Sat Sep 05, 2009 12:50 pm
- Bike owned: NC30, Kona Cowan
- Location: Trowbridge
ethos jetting
ok ive fitted ethos half system but ive not changed jets yet , running 115/118 i know i should be something like 118/120 , my question is will the bike be running lean as it is , ie melted pistons etc, forgive me but im not so clued up on the jetting side of things, should i not be riding the bike until ive changed the jets 

Deviants AM/PM buildxivlia wrote:no i am not dead. ive just been trying a few things....
viewtopic.php?f=62&t=27307
- CMSMJ1
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- Joined: Thu May 01, 2008 9:42 am
- Bike owned: NC30-No9
- Location: Chesterfield, United Kingdom
Re: ethos jetting
ride it and see how it goes. It may perform lovely for you - or it may seem to like the revs but not actually go..so you can feel it is lean.
you'll not be melting pistons mate....I hope!
you'll not be melting pistons mate....I hope!
IMPERATOR REX ANGLORUM
The V4 is the law..
NC30 - No9 - my old mate
The V4 is the law..
NC30 - No9 - my old mate
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Re: ethos jetting
You would have run a lot smaller jet size than that before you melt pistons,
You will need to change your jet sizes to complement your ex system for best performance.
Iran a full race micron on my bike for a long time without changing jets.
You will need to change your jet sizes to complement your ex system for best performance.
Iran a full race micron on my bike for a long time without changing jets.
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- Settled in member
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- Joined: Sat Sep 12, 2009 9:42 pm
Re: ethos jetting
to be fair i had 126 front and 124 rears on my ethos with maggot can ran very nice, a tad rich but i like to run slightly rich its just my prefrence, never hessitated on pick up or spluttered just depends how it suits your bike
take my race bike now tho i cant even start the thing grrrr !
take my race bike now tho i cant even start the thing grrrr !