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FJR Motorcycle Forums
Technical & Mechanical Problems
FJRF002 thru FJRF005
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<blockquote data-quote="Solo" data-source="post: 906598" data-attributes="member: 14247"><p>I'll add my input to 1 and 3.</p><p></p><p>Yes, many of us have used the G2 throttle tube and cam to ease the abrupt on/off action of the original on the models you mention. The real problem in my mind, however, is the excessive leanness of the air/fuel mixture, necessary to pass emissions tests required of the manufacturer. This creates a stumbling feeling off idle/at low throttle openings, which is overcome when the throttle is opened sufficiently--and BANG you have a ton of power. Like flipping an on/off switch. This problem is remedied by the installation of a Dynojet Powercommander. The throttle cam does not remedy the leaness issue.</p><p></p><p>I first installed a G2 and was fairly happy with the results, although I could still feel the leaness starving the engine. I decided to add the Powercommander, but at the same time I removed the G2. Presto--all problems solved. I still occasionally fail to roll on the throttle smoothly enough and the bike will jump a bit on throttle roll-on, but the PC remedies 90 percent of what the G2 fixes and all of the leaness problem.</p><p></p><p>With that said, many have installed both and are happy with the results. Personally, I'm happy with just the PC.</p><p></p><p>The ECU was a recall and was installed free of charge by Yamaha.</p></blockquote><p></p>
[QUOTE="Solo, post: 906598, member: 14247"] I'll add my input to 1 and 3. Yes, many of us have used the G2 throttle tube and cam to ease the abrupt on/off action of the original on the models you mention. The real problem in my mind, however, is the excessive leanness of the air/fuel mixture, necessary to pass emissions tests required of the manufacturer. This creates a stumbling feeling off idle/at low throttle openings, which is overcome when the throttle is opened sufficiently--and BANG you have a ton of power. Like flipping an on/off switch. This problem is remedied by the installation of a Dynojet Powercommander. The throttle cam does not remedy the leaness issue. I first installed a G2 and was fairly happy with the results, although I could still feel the leaness starving the engine. I decided to add the Powercommander, but at the same time I removed the G2. Presto--all problems solved. I still occasionally fail to roll on the throttle smoothly enough and the bike will jump a bit on throttle roll-on, but the PC remedies 90 percent of what the G2 fixes and all of the leaness problem. With that said, many have installed both and are happy with the results. Personally, I'm happy with just the PC. The ECU was a recall and was installed free of charge by Yamaha. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
FJRF002 thru FJRF005
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