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Also, it has been said many times by the factory people- mostly Simon Marshall who I also wish would come back on this forum, that catless and cat pipes make marginal difference in performance. I’m really only chasing out a dead spot at 4,200 rpm. My cold starts are perfect and idle is perfect too. I found that I narrowed my dead zone a lot tighter with the Genuine Bosch sensors. I swapped 4 oem norton cam sensors, wrote down the RPM flat spot and it wouldn’t repeat on all of them. Also had a wider flat spot that went fron 3,800 to 4,500. With the Bosch its all day at 4,200 and 100 above or below its gone. So I felt really happy with that. If I can chase it out completely then I’ll have a PERFECT bike. And I realize I rebuilt the engine and balanced so its more than just sensors and o2 deletes. But as a whole package I feel ive conquered the 961. With loads of help from my dad of course. And this forum. Every bit of info combined made it happen.

So as a ACCESS NORTON team WE’VE conquered the 961.

<blockquote data-quote="richard-7" data-source="post: 372066" data-attributes="member: 5970">Also, it has been said many times by the factory people- mostly Simon Marshall who I also wish would come back on this forum, that catless and cat pipes make marginal difference in performance. I’m really only chasing out a dead spot at 4,200 rpm. My cold starts are perfect and idle is perfect too. I found that I narrowed my dead zone a lot tighter with the Genuine Bosch sensors. I swapped 4 oem norton cam sensors, wrote down the RPM flat spot and it wouldn’t repeat on all of them. Also had a wider flat spot that went fron 3,800 to 4,500. With the Bosch its all day at 4,200 and 100 above or below its gone. So I felt really happy with that. If I can chase it out completely then I’ll have a PERFECT bike.&nbsp; And I realize I rebuilt the engine and balanced so its more than just sensors and o2 deletes. But as a whole package I feel ive conquered the 961. With loads of help from my dad of course.&nbsp; &nbsp; And this forum. Every bit of info combined made it happen. So as a ACCESS NORTON team WE’VE conquered the 961.</blockquote>

[QUOTE="richard-7, post: 372066, member: 5970"] Also, it has been said many times by the factory people- mostly Simon Marshall who I also wish would come back on this forum, that catless and cat pipes make marginal difference in performance. I’m really only chasing out a dead spot at 4,200 rpm. My cold starts are perfect and idle is perfect too. I found that I narrowed my dead zone a lot tighter with the Genuine Bosch sensors. I swapped 4 oem norton cam sensors, wrote down the RPM flat spot and it wouldn’t repeat on all of them. Also had a wider flat spot that went fron 3,800 to 4,500. With the Bosch its all day at 4,200 and 100 above or below its gone. So I felt really happy with that. If I can chase it out completely then I’ll have a PERFECT bike. And I realize I rebuilt the engine and balanced so its more than just sensors and o2 deletes. But as a whole package I feel ive conquered the 961. With loads of help from my dad of course. And this forum. Every bit of info combined made it happen. So as a ACCESS NORTON team WE’VE conquered the 961. [/QUOTE]

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