Thundermax decel pop
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Road Warrior
Joined: Sep 2009
Posts: 1,472
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From: Blind Bay, BC
Thundermax decel pop
My bike, 09 fatboy Tmax w/autotune/SE heavy breather/2" Rush slip-ons.
I have been trying to get rid of the decel pop, I loaded map 401 as suggested by Zippers and guys here on the forum. (thanx)
I ran her for 100+ miles in a few rides but had alot decel pop around 2200/2300 rpm, so after much reading the forum and directions I decided to reload the map (401) but this time change the decel fuel cut to 1 (enabled) so i rode for another 100+ miles today with a few stops and the decel pop is less but still there, also the bike does not seem to have as much ***** as before it seems less responsive.
I know its only 100+ miles on the setup but should there be any decel pops?
Also a little confused
, I have the tmax w/autotune does to bike get auto tuned for best performace or does it simply tune the bike to the loaded map??
appreciate the help.
Colin
I have been trying to get rid of the decel pop, I loaded map 401 as suggested by Zippers and guys here on the forum. (thanx)
I ran her for 100+ miles in a few rides but had alot decel pop around 2200/2300 rpm, so after much reading the forum and directions I decided to reload the map (401) but this time change the decel fuel cut to 1 (enabled) so i rode for another 100+ miles today with a few stops and the decel pop is less but still there, also the bike does not seem to have as much ***** as before it seems less responsive.
I know its only 100+ miles on the setup but should there be any decel pops?
Also a little confused
, I have the tmax w/autotune does to bike get auto tuned for best performace or does it simply tune the bike to the loaded map??appreciate the help.
Colin
Last edited by Colin1966; Feb 14, 2010 at 10:37 PM.
Tourer
Joined: Nov 2006
Posts: 364
Likes: 1
From: Nashville TN.
Seeings how you mentioned new "Slip ons". Check those for leaks. I use a bead of high temp silicone to make sure that mine don't leak. If those are ok you probably have a lean condition. You can check your spark plugs for that info. GOOD LUCK.
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Road Warrior
Joined: Sep 2009
Posts: 1,472
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From: Blind Bay, BC
thanxs for the reply v2in,
the 1st thing I looked at was the slip-ons for leaks and nothing, checked them with a smoke.
I will pull a plug and check the condition. as alot of guys use the Tmax i thought that someone has to have had the same isssue.
Colin
the 1st thing I looked at was the slip-ons for leaks and nothing, checked them with a smoke.
I will pull a plug and check the condition. as alot of guys use the Tmax i thought that someone has to have had the same isssue.
Colin
Club Member
Joined: May 2007
Posts: 145,895
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From: 40 miles Northeast of Indy..
+ 1 on the check of leaks.
Dealer did my install at the 1k with stg 1,,, couldn't get the popping out even redynoed 2 times, till I found the problem... the wench didn't get the clamps on right and actually bent the front end of the muffles, where the slots are, and 7 of the 8 slots U could see dayligh through causing air leaks,,,, after they redid them with new clamps in the proper place and dynoed her again they got rid or 95% of the popping.
Dealer did my install at the 1k with stg 1,,, couldn't get the popping out even redynoed 2 times, till I found the problem... the wench didn't get the clamps on right and actually bent the front end of the muffles, where the slots are, and 7 of the 8 slots U could see dayligh through causing air leaks,,,, after they redid them with new clamps in the proper place and dynoed her again they got rid or 95% of the popping.
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Road Warrior
Joined: Sep 2009
Posts: 1,472
Likes: 8
From: Blind Bay, BC
thanxs for the reply oct1949,
hmm I checked for leaks when the bike was hot maybe checking when cold??? I will check again tomorrow. I should add that the decel pop is not all the time & did get alot better with the change to the decel fuel cut to 1, but a I did notice a power loss.
hmm I checked for leaks when the bike was hot maybe checking when cold??? I will check again tomorrow. I should add that the decel pop is not all the time & did get alot better with the change to the decel fuel cut to 1, but a I did notice a power loss.
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Road Warrior
Joined: Sep 2009
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From: Blind Bay, BC
I think you need to ride more than 100 miles with auto tune.
Colin
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From: 40 miles Northeast of Indy..
thanxs for the reply oct1949,
hmm I checked for leaks when the bike was hot maybe checking when cold??? I will check again tomorrow. I should add that the decel pop is not all the time & did get alot better with the change to the decel fuel cut to 1, but a I did notice a power loss.
hmm I checked for leaks when the bike was hot maybe checking when cold??? I will check again tomorrow. I should add that the decel pop is not all the time & did get alot better with the change to the decel fuel cut to 1, but a I did notice a power loss.
Heres how to check for leaks,,, on my 2 in, baffles, it was easy,
Get on ur knees behind the rear end of the pipes,, have someone hold a light where the header pipes and the mufflers meet..(where the clamps are).and move the light around the muffler at each of he four slots on each muffler.
While U Look into the rear of the pipe see if U can see any light in side the muffler where the four slots are, U'll have to move Ur head around to make sure its ok or not .. if U see any light at all then U will have a leak and U'll have decell popping.
If U have 1 3/4'' or 1 1/2 baffles U may have to pull them out to check????
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Road Warrior
Joined: Sep 2009
Posts: 1,472
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From: Blind Bay, BC
thanxs oct1949,
I have Rush 2", same as you :-)
I will check tomorrow hopefully that's the issue.
this is how i checked, I ran the bike took my wifes smoke from her and watched the smoke at the connection, I think your way is better :-)
hey mke125125,
i thought you were pulling my wire with "look up the end of your pipes"
I have Rush 2", same as you :-)
I will check tomorrow hopefully that's the issue.
this is how i checked, I ran the bike took my wifes smoke from her and watched the smoke at the connection, I think your way is better :-)
hey mke125125,
i thought you were pulling my wire with "look up the end of your pipes"