kmwharley
Veteran
I just put an under tunnel exhaust on my nytro MTX, modified header so I cannot go back without ordering an new one. I am not getting a popping comming out of it.....I have no other mods, only cosmetic. Do I need a power commander....Need help asap as I am supposed to Ride on wednesday. Thanks in advance.
Len Todd
TY 4 Stroke God
Please take another look at what you wrote. I think you are saying you are getting a popping. But you say you are not in the text. ???
Popping is typically associated with an exhaust leak at the donuts or flex-pipes. Did you replace the donuts and inspect the flex-pipes for cracks? Are the clamps to the donut joints tight?
Popping is typically associated with an exhaust leak at the donuts or flex-pipes. Did you replace the donuts and inspect the flex-pipes for cracks? Are the clamps to the donut joints tight?
kmwharley
Veteran
Yes you are correct I am getting popping....stupid me posting when i am upset....lol. Anyway It is a brand new 0 mile sled so I have not checked any part of the exhaust for a leak. The muffler was welded on so I do not think there is a leak there. I did not have the problem before putting on the exhaust, only riding was around the yard though. The muffler that was put on is a hindle off of an r1.
kmwharley
Veteran
Just talked to a friend watching me pull out the sled and he said that it shot out a couple of fire balls also....????
dicky2077
Veteran
popping
Did you rejet for this mod? I would say you may have to do this
Did you rejet for this mod? I would say you may have to do this
xt_gt
TY 4 Stroke Junkie
does it do it constantly or just when you let off throttle? like a little backfire. probably running rich & the raw fuel is what is causing it. run the sled a while & let the stock fuel mapping/machine adjust to it. maybe do some airbox mods to help the induction.
my sled has a little pop once in a while only when i'm riding hard & let off quick. only does it 1-2 times.
just check your connections where the pipe went on. start it & feel around the welds to see if they leak.
my sled has a little pop once in a while only when i'm riding hard & let off quick. only does it 1-2 times.
just check your connections where the pipe went on. start it & feel around the welds to see if they leak.
Len Todd
TY 4 Stroke God
Re-jetting is not an option on a fuelie. However, maybe you can adjust the fuel using the control the gage and ECU offer.
You may want to read This. Click Here.
Hopefully, it is just a little fat and you will not have to mess with the timing.
You may want to read This. Click Here.
Hopefully, it is just a little fat and you will not have to mess with the timing.
Turk
Tech Advisor
You need a fuel controller to add fuel. been der dun dat with 2 nytro,s. Your lean.
kmwharley
Veteran
Thanks for the replys. The popping is pretty constant not just under certian conditions. Will the "attack" fuel adjust procedure work for a nytro? Also to Turk, when you say a fuel controller do you mean a RB3 or Power Commander? Sorry for the ignorance, first 4 stroke.....a little different beast compared to the 2 strokes.
kmwharley
Veteran
Thanks for the replys. The popping is pretty constant not just under certian conditions. Will the "attack" fuel adjust procedure work for a nytro? Also to Turk, when you say a fuel controller do you mean a RB3 or Power Commander? Sorry for the ignorance, first 4 stroke.....a little different beast compared to the 2 strokes.
Turk
Tech Advisor
All you need is any device that will plug into your wiring harness & control fuel flow. Dobeck makes a decent one which I use on my Nytro. Just get the cheapest one you can find. I got my Hauck(dobek) for under $300. You just need one that adds fuel & not reomove any.
kmwharley
Veteran
Cool thanks, any idea who stocks one....emailed allan ulmer and sent him a pm about a pc3, should I try hauck? Just need one so I can ride the new beast on my trip, leaving Wed @ 0530
