Orange-65 Posted April 12, 2009 Share #1 Posted April 12, 2009 I have a carbtune kit and I feel that my carbs are as equal as I can make them. However, I feel a shaking or shuddering in 5th and even in 4th gear on seemingly level roadway. It makes me think that the motor is 'lugging down' and I really need to down shift....but my speed indicates that I should not have to. When I roll more throttle, it continues to quake until it 'catches up' for a moment. I try to use the cruise and that is uncomfortable.......I know this is a poor effort in explaining what I feel...Is there anyone with a guess as to what I may need to adjust???? Thanks: lynnjean Link to comment Share on other sites More sharing options...
Tom Posted April 12, 2009 Share #2 Posted April 12, 2009 If you are not winding it up to high RPMS it will do that..Yamahas recommended shifts are not correct at all. Link to comment Share on other sites More sharing options...
Mariner Fan Posted April 12, 2009 Share #3 Posted April 12, 2009 If you are not winding it up to high RPMS it will do that..Yamahas recommended shifts are not correct at all. Beat me to it. That is what I was thinking. Link to comment Share on other sites More sharing options...
Dano Posted April 12, 2009 Share #4 Posted April 12, 2009 These bikes, both first and second gen, do not run well under load below 2500 rpms. These are purebred stallions intended to run higher rpms than you may be used to. Try kicking down a gear and see how she does. If it's not that, then something might be out of balance. Dan Link to comment Share on other sites More sharing options...
BuddyRich Posted April 12, 2009 Share #5 Posted April 12, 2009 Unless your doin 80 you don't need to be in 5th. And if you in 4th under 55 its luggin the engine. You can take 3rd to 80. These are V4's and need higher rpm's to perform. Link to comment Share on other sites More sharing options...
PBJ Posted April 12, 2009 Share #6 Posted April 12, 2009 And the Yamaha Engines definitely run smoother the higher the RPM's. This is both true with my Venture and my XS1100. Link to comment Share on other sites More sharing options...
Condor Posted April 12, 2009 Share #7 Posted April 12, 2009 If it's 'studdering' you may be running on 3 cylinders.... ?? Link to comment Share on other sites More sharing options...
Orange-65 Posted April 13, 2009 Author Share #8 Posted April 13, 2009 I have a carbtune kit and I feel that my carbs are as equal as I can make them. However, I feel a shaking or shuddering in 5th and even in 4th gear on seemingly level roadway. It makes me think that the motor is 'lugging down' and I really need to down shift....but my speed indicates that I should not have to. When I roll more throttle, it continues to quake until it 'catches up' for a moment. I try to use the cruise and that is uncomfortable.......I know this is a poor effort in explaining what I feel...Is there anyone with a guess as to what I may need to adjust???? Thanks: lynnjean Thanks,,V Riders....I know that I have been driving 'slower' since we got the bride her wheels...I will check it out more in the future...lynnjean Link to comment Share on other sites More sharing options...
gibvel Posted April 13, 2009 Share #9 Posted April 13, 2009 Take the beast to the rev. limiter in 1st and 2nd (about 6,000 rpm) and it will give you some idea of how far to take it in each gear. The rev. limiter will , basically, cause the engine to start cutting out, sputter, but it won't hurt anything. It'll just give you an idea of how far you can rap the things out before you have to shift. Link to comment Share on other sites More sharing options...
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