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Old July 13th, 2019, 08:48 PM   #8
59096
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Name: Garry
Location: Bungendore Australia
Join Date: Jan 2019

Motorcycle(s): GPX250 1989 model and 1990 model

Posts: 98
Quote:
Originally Posted by Seirra117th View Post
yes filter oiled with k&n oil
yes SNORKAL removed
and yes the bike idles perfect with the old filter back in

so this is why im confused.......

some say the filter will not affect AFR
and yet other do say that........so still confused as too who is right
Should be obvious. If the bike idles perfectly with the old filter back in and idles badly with the hi flow installed it means that the hi flow filter setup is causing the problem. Either run with the old filter and put the snorkle back in or do what ever carb tuning is necessary to suit the hi flow. Be prepared to remove and replace the carbs multiple times in doing this. The tuning is right on mine (which it is because everything is standard) and I leave things well alone - to many chances of damaging diaphragms, vacuum hoses and then never getting it exactly right through the whole range (which it is when everything is standard and operating correctly). Just a thought!
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