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Posted by nhtrikes
 - June 06, 2013, 09:35:03 AM

Put the FI2000 in last weekend and road a couple of days with pots set to factory. She seemed to pop/backfire after a while on a 2 1/2 hour ride mostly in the upper gears on decel after higher rpm rundown.  I stepped pot 1 up one notch. Seemed to do the trick. Running very smooth on accel and decel. Might get 1 loud pop now and again but not often enough to bother me. Thanks for all the help again!

Posted by nhtrikes
 - May 29, 2013, 09:00:34 AM

Thanks Chief, I'll let you know how I make out.

Posted by chief
 - May 29, 2013, 08:38:59 AM

Yeah, one click on one pot... not a lot of difference but a bit. Try it straight first. It is intended for the pipes you have.

Posted by nhtrikes
 - May 29, 2013, 08:29:13 AM

What tweak was that Chief? Did you adjust one of the pots? Will be attempting to put it in either tonight if it stops raining or tomorrow in the heat. Thanks!

Take care,

Pete

Posted by chief
 - May 29, 2013, 08:16:35 AM

I had similar decel popping and backfires after installing my Big Willys pipes (and doing the coaster mod). The Cobra FI2000 was perfect for me... worked out of the box, though I did make one tweak.

Posted by DC
 - May 29, 2013, 07:04:44 AM

It's probably unrelated, but I ran a can of Seafoam(tm) through a tank of gas and my backfiring is gone .. . . . . knock on wood.

Posted by teamster6
 - May 29, 2013, 00:19:23 AM

I run the 2001 1500 I have that has the straight cobras that were stock and its smooth and fast. I also have a 1500 nomad carb model and the drifter has a lot more pickup and go than the nomad by far.

surpriseingly though I have a 1200 voyager and it will outrun both of them. That inline four is a beast.

t6

Posted by nhtrikes
 - May 20, 2013, 08:10:07 AM

Finally found the time this weekend to remove the reed valves and associated emissions stuff and install the coasters. Those instructions from gadget's page were perfect. Very easy to follow. Hardest part was getting my fat fingers in there to remove the little clips from the hoses and getting the valve on top of the cylinders squeezed through the frame and cylinder heads. Took her for a ride and the less popping but seems to have more backfire. Either that or now I can hear more backfire on decel now that most of the popping noises are gone. Will have to go with a power commander. Is the backfiring a sign of running lean? I am looking at the Cobra FI2000 powerpro with CVT. Seems like the easiest and lowest price. It sounds like it will take care of the problem. Anyone have any experience with this model?  Thanks!

Take care,

Pete

Posted by chief
 - March 15, 2013, 16:38:06 PM

if you plan to have the bike dyno'd and you want the most adjustment go with the much more expensive PC - new model whatever that is - or one of its clones. There are existing maps which will help tune the bike... at least put it in the ballpark until you dyno.

For simplicity and a lower price, go with the Cobra or one of its clones/competitors. I wanted simplicity and the low price... There are others out there so you might want to do some research to determine which one serves your needed. 

Posted by nhtrikes
 - March 15, 2013, 12:00:33 PM

Ouch! Thanks for the info Troll . . . and I thought 200 was a lot  :P

Posted by Troll
 - March 15, 2013, 11:55:31 AM

The power commander is like 2x that much....

Posted by nhtrikes
 - March 15, 2013, 10:51:59 AM

The Cobra Fi2000 PowerPro doesn't seem to need programming. It's auto adjusting to all conditions with or without O2  sensors. It monitors the system more than 80 times per second and makes adjustments continously.

"This is the product that continuously tunes your fuel-injected motorcycle every time it accelerates. You get the perfect fuel so that your bike produces the most power every time you snap open the throttle." Cobra.

So they say. It's priced at @$200. I don't know if that's pricey or not. Hopefully I can get by without it, if not, I may have to dip into the piggy bank and get me one, unless of course the Power Commander is much more economical. It's great that they will help you program it, shows good support from the company.

Joe got back to me right away and has the coasters in stock. Ordered a set. One of several little projects when (hopefully) I get her back! I have another question regarding my Corbin 2 up seat but I'll start another thread for that.
Thanks again everyone!!!

Take care,

Pete . . .

Posted by 49Reo
 - March 15, 2013, 10:32:02 AM

I put V&H pipes on mine, and I am running a Power Commander III USB; great unit, was having a bit of trouble programming it, so called them, a techy logged into my laptop while it was hooked to the bike and programmed it. No popping on decel, got more acceleration power, pipes run clean. Haven't looked at the Cobra unit though.... ???

Posted by nhtrikes
 - March 15, 2013, 07:23:12 AM

Thanks for education Chief! That link explained it pretty well, easy to understand. That Fi2000 is pretty amazing, what they can pack into a tiny little box nowadays! I will start with removing the reed valves 'cause I too like the cleaner cylinder look. It doesn't sound like I'll need the box but if she starts to act up, lack of power or continued popping, then I'll have to put one on. I'll contact Joe Norris so I can get those coasters before I get the bike back, I hope  ;)

The mechanic did seem a little too excited the last time I saw him after the paint job, DC. Now ya got me even more worried. I don't who was drooling over the bike more, me or him. Kinda glad I have both seats right now, helps keep the mileage down  :o

Take care,

Pete . . .

Posted by DC
 - March 15, 2013, 07:08:44 AM
Quote from: nhtrikes on March 14, 2013, 13:13:16 PM

. . . . . I"m hoping my mechanic will take it for a test drive before giving it back to me, soon I hope,  . . . .

And what makes you so sure the mechanic is going to give it back to you?  He won't want to, after taking it out for a ride.   ;)   ;D
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