jjrace wrote:Why would you call them without trying different clip positions first???
Still your AP circuit needs to be modified and that aftermarket AP cover removed. That is the purpose of the AP, to squirt extra fuel in the cylinder at low RPMs to eliminate the bog/hesitation.
sbronco68 wrote:jjrace wrote:Why would you call them without trying different clip positions first???
Still your AP circuit needs to be modified and that aftermarket AP cover removed. That is the purpose of the AP, to squirt extra fuel in the cylinder at low RPMs to eliminate the bog/hesitation.
The AP circuit and the main jet are responsible for the air fuel ration right as you nail the throttle right? So if the bike use to be super snappy (good) with the current AP set up and a 168main now the JD kit with a 180 main makes it bog I figure JD would know what direction to go. This thing is wicked 99% of the time its just when I let it bog down in the rocks or over a log and then I nail it wide open it bogs. I can't see clip position making a difference as at WOT is uninvolved.
~ wrote:sbronco68 wrote:jjrace wrote:Why would you call them without trying different clip positions first???
Still your AP circuit needs to be modified and that aftermarket AP cover removed. That is the purpose of the AP, to squirt extra fuel in the cylinder at low RPMs to eliminate the bog/hesitation.
The AP circuit and the main jet are responsible for the air fuel ration right as you nail the throttle right? So if the bike use to be super snappy (good) with the current AP set up and a 168main now the JD kit with a 180 main makes it bog I figure JD would know what direction to go. This thing is wicked 99% of the time its just when I let it bog down in the rocks or over a log and then I nail it wide open it bogs. I can't see clip position making a difference as at WOT is uninvolved.
The main jet doesn't come into play until about 1/2 throttle.
The AP is designed to aid in the transition zone between the pilot and the needle, roughly 1/4 throttle. The needle initial taper and clip position are all important in this zone. If the needle comes on too quick, it'll fall on it's face from being too fat or it'll stumble if the needle is too slow to flow. The AP can only make up for so much.
Also, you cannot compare main jet sizes used with the JD needle with main jets used with OEM needles. The taper of the JD is leaner as it's opened more which allows the use of larger mains.
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