DL1000K3, Power Commander III, Secondaries out, backfires... - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
V-Strom Modifications and Performance The brag page, good and bad.

 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 11-01-2005, 06:51 PM Thread Starter
Stromthusiast!
 
Join Date: May 2005
Location: Wilmington, DE, USA
Posts: 88
DL1000K3, Power Commander III, Secondaries out, backfires...

I recently installed a Power Commander III USB in my DL1000K3. I am using the M311-001 map - 02-03 Model for Completely Stock Bike. This map checks out with the computer, both cylinders are mapped the same.

I wasn't completely satisfied, it seemed to lack the old punchy acceleration, so I yanked the secondary butterfly valves.

Wow! What a difference! Bike now pulls from 1500 to 9500. It is smooth the whole way up. It is just a smidge rough at 3000-4000, a really small smidge. At 4000-7000 it's like an electric engine, then gets a bet fiesty. Acceleration is far better than brisk. I'm happy.

Gas mileage went from 41mpg to 43mpg for same riding conditions. Not bad, better performance, better mileage, such a deal!

However, there is a "fly in the ointment". I occassionally get a small backfire, especially when the bike is hot (3 bars). This occurs at low rpms, when I start a slow acceleration. There seems to be a lull in the engine just before the backfire.

I'm running the idle about 1400 to keep it from stalling. I may be able to lower it. I set it before PCIII and removing the secondaries.

Any ideas on how to fix this backfiring?
ejy712 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 11-01-2005, 08:32 PM
Stromthusiast!
 
Join Date: Apr 2005
Location: SW Washington State
Posts: 178
Sounds like a balancing of the throttle bodies is in order.

"Travel has no longer any charm for me. I have seen all the foreign countries I want to except heaven & hell & I have only a vague curiosity about one of those."
Twain
BradM is offline  
post #3 of 9 Old 11-01-2005, 10:45 PM
Stromthusiast!
 
Join Date: Sep 2005
Location: L-town, MI
Posts: 137
Perhaps the low RPM fuel value is set too low (too lean) in the MAP?

I got my Wee-strom (first motorcyle, first motorcycle I've ever been on period) and scared the snot out of myself.
Corpsie is offline  
 
post #4 of 9 Old 11-12-2005, 09:21 AM
Stromthusiast!
 
Join Date: Nov 2005
Location: Hughesville, MD
Posts: 15
I've got an '05 DL1000 set up similar to yours: stock air filter, stock pipes, and a PC USB III. I recently gave it a "secondary-ectomy", and I've got to agree. It ran great before, but removing the STPs takes the bike to a whole new level; it's magic.

As for your backfire issue, if all else is in order, you may want to try a different map. I have (what appears to be) a custom tuned version of map M311-501. I bought the bike used, and the PC was all ready installed. I recently pulled the map down from the bike to check out what version was installed. The file was named M311-501 but was different from the version off the Dynojet site.

If you want a copy of the map, let me know and I will e-mail you a copy. Again, I'm not sure who did the tuning, but I cannot imagine my bike running any better.

Rick
<><
Semper-V is offline  
post #5 of 9 Old 11-12-2005, 09:27 PM
JohnInNH
Guest
 
Posts: n/a
Where can I get a detailed HOW TO for a "secondary-ectomy" With pics etc..

I think I should do this after reading all the PROs

Any CONs?

Thanks from a new guy.
post #6 of 9 Old 11-12-2005, 11:04 PM
Stromthusiast!
 
Join Date: Apr 2005
Location: SW Washington State
Posts: 178
https://stromtrooper.com/forum/viewto...er=asc&start=0

"Travel has no longer any charm for me. I have seen all the foreign countries I want to except heaven & hell & I have only a vague curiosity about one of those."
Twain
BradM is offline  
post #7 of 9 Old 11-13-2005, 10:55 AM
JohnInNH
Guest
 
Posts: n/a
When I look at the part drawings there are two sets of butterflys.

I would think the top would be the primarys and the lower the secondarys... I don't want to remove the wrong ones.

The write up makes it sound like they are the TOP most round plate/butterfly

Is this true?

Sounds like a MUST DO...

Any other MUST DOs for this bike.. (I have the teka re-map, center stand on the way, and a new WindStrom Manta)

BrianMA and I are taking a trip this coming week. He's got 3 days off and we want to see how far south we can go. LOL... Let's hope for warm and DRY weather!
post #8 of 9 Old 11-13-2005, 01:16 PM
Stromthusiast!
 
Join Date: Apr 2005
Location: SW Washington State
Posts: 178
The set nearest the air filter, or the top are the secondary butterflies.

"Travel has no longer any charm for me. I have seen all the foreign countries I want to except heaven & hell & I have only a vague curiosity about one of those."
Twain
BradM is offline  
post #9 of 9 Old 11-14-2005, 08:38 PM
Stromthusiast!
 
Join Date: Nov 2005
Location: Hughesville, MD
Posts: 15
Another guy with instructions: http://vstrom.info/cgi-bin/moin.cgi/...ttle_Plates%3f

99% of the work is getting the tank off; overall, pretty easy...

Rick
<><
Semper-V is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome