Front header turning red @ warmup

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reciprocation23
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Front header turning red @ warmup

Post by reciprocation23 » Sun Oct 14, 2018 4:51 am

Hi all, John P here. I have a 2016 SDGT, I'm out of New York, USA. I say that, because I am like the only Duke owner in the hudson valley where I live. Ok, meet and greet done, let's cut the small talk.

I have a pjpewerx slip on, a healtech servo eliminator (servo area wide open, since removed), stock cat box and rottweiller fueling dongles. I have 4,936 miles on the clock and I maintain this bike meticulously. Motorex across the board, routine cleaning, you name it.

I was warming my bike up today, and the front header pipe started to glow a little red. Not cherry red. It's that faint red. It's never done that before. And I have about 800 miles on these fueling dongles. They have helped. The dongles were my last mod. Does anyone else run a similar setup to mine? Is this something I should be worried about? I would really hate to lose he's dongles for the sake of my engine because it makes it run better. My bike used to stall out at lights and it stopped doing it since I put them in. What do you guys think? Why is my exhaust header primary tube getting this hot in the front cylinder?

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DaveNZ
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Re: Front header turning red @ warmup

Post by DaveNZ » Sun Oct 14, 2018 6:00 am

I wouldn't worry too much about the red pipe, sitting there, theres no cooling breeze on the pipes. i have the CAT removed, SAS removed, and the Servo removed, Rottweiler O2 sensor dongles fitted, Rottweiler STG 2 SAS removal kit, and the Healtec dongle, Remus link pipe and muffler, i haven't seen my pipes glow red, but they get hot when idling and sitting. Have you had the CAT removed? they create a shit ton of heat.
2016 1290GT-remus link and muffler, 2010 Black 1200 Multistrada full Termi system with mapping, 2005 SMR 640, full Titanium system, Mikuni flatside racing carb, 2 sets of wheels, 18 litre tank, and a nice soft seat.

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reciprocation23
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Re: Front header turning red @ warmup

Post by reciprocation23 » Sun Oct 14, 2018 2:48 pm

I still have the cat box installed. I have a racefoxx link pipe, (sound is magical) but I don't like the way the bike feels with it on so I reverted back to cat box.

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Re: Front header turning red @ warmup

Post by Aussie Dave » Mon Oct 15, 2018 5:49 am

One thought comes to mind....... engine stalling was a factor caused by fuel filter media turning to mush and blocking flow from the fuel pump on some bikes using ethanol blends.

Could this be the underlying cause of your red-pipe issue? (there is a recall out for fuel pumps and Brembo brake master cylinder pistons... and a fuse box inspection - mine is due for all 3 as soon as I am allowed to get back in the saddle ;) ).

I've never seen a header glow red in all the bikes i've put pipes on and jetted etc (now that's showing my age in a fuel injected world :lol: ),...... My GT is still stock but as DaveNZ writes..... headers get hot, though I'd say glowing red is not normal for a 1290 donk unless it's running very lean/rich . :o
Current delights...1290GT-2017, CBR1100XX-2005

Prev loves...Capo1200TP-014, CBR11xx-002, 2xFZR1000genisis-94, FJ1200-89, FJ1100-84, XS1100P, VF1000F-83, CX500, VF750S, KZ1000J1-81, KZ1000ST-79, CB750F2-77, CB360T-74, CB175.. started it all in 1974 ;)

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reciprocation23
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Re: Front header turning red @ warmup

Post by reciprocation23 » Mon Oct 15, 2018 11:20 am

Yes, here in the states, we have 10 percent ethanol in our fuel. I try to avoid it. Never heard about the fuel filter going bad that quickly, I'll have to check it. I had the fuel line issue and master cylinder issue fixed under recall..

I started with carbureted bikes! I know what you're saying lol. I love this bike and want to see it through a lot more miles before it needs major work. Thanks, I'll keep you informed.

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reciprocation23
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Re: Front header turning red @ warmup

Post by reciprocation23 » Mon Oct 15, 2018 11:20 am

How come you can't get back in the saddle Aussie Dave?

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Re: Front header turning red @ warmup

Post by Aussie Dave » Mon Oct 15, 2018 11:43 pm

cheers recip23,

I had heart by-pass surgery way back in March and have been one of the few that struggled to get back into gear........ The lucky/normal ones like jjsc6 (the other invalid :lol: ) are back driving/working within 6 weeks!

Anyhooo, i have a check up scheduled for this Wednesday and have my fingers (& toes) crossed hoping that the doctors will slap me on the back and give their blessing for driving (and riding) :)

It was a big surprise, but I am glad i persisted and by=passed the blockages before any heart attack could occur. I'm sure I would not be here now if I hadn't taken action early....... :D

Best wishes for finding the reason that header glows red at warm up revs..... as i mentioned earlier my GT has stock pipes/tune, K&N airfilter waiting to go in, (haven't ridden it since January :roll: ) but it runs so nicely I'm not really tempted to change anything (I have swapped the rear sprocket to 40T =helps keep the motor in the sweet spot around town and allows 6th gear at legal highway touring speeds).
Current delights...1290GT-2017, CBR1100XX-2005

Prev loves...Capo1200TP-014, CBR11xx-002, 2xFZR1000genisis-94, FJ1200-89, FJ1100-84, XS1100P, VF1000F-83, CX500, VF750S, KZ1000J1-81, KZ1000ST-79, CB750F2-77, CB360T-74, CB175.. started it all in 1974 ;)

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Re: Front header turning red @ warmup

Post by DaveNZ » Tue Oct 16, 2018 5:08 am

reciprocation23 wrote:
Mon Oct 15, 2018 11:20 am
Yes, here in the states, we have 10 percent ethanol in our fuel. I try to avoid it. Never heard about the fuel filter going bad that quickly, I'll have to check it. I had the fuel line issue and master cylinder issue fixed under recall..

I started with carbureted bikes! I know what you're saying lol. I love this bike and want to see it through a lot more miles before it needs major work. Thanks, I'll keep you informed.

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Theres talk on the Aprilia Tuono threads about your fuel octane in the US, and many many Tuono's valves getting burnt out, and the consensus is it could be the fuel, engines running hotter and leaner.there was also a guy on there that said his pipes were glowing red while the bike was idling.
2016 1290GT-remus link and muffler, 2010 Black 1200 Multistrada full Termi system with mapping, 2005 SMR 640, full Titanium system, Mikuni flatside racing carb, 2 sets of wheels, 18 litre tank, and a nice soft seat.

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Re: Front header turning red @ warmup

Post by jjscsix » Tue Oct 16, 2018 12:43 pm

Aussie Dave wrote:
Mon Oct 15, 2018 11:43 pm
cheers recip23,

I had heart by-pass surgery way back in March and have been one of the few that struggled to get back into gear........ The lucky/normal ones like jjsc6 (the other invalid :lol: ) are back driving/working within 6 weeks!

Anyhooo, i have a check up scheduled for this Wednesday and have my fingers (& toes) crossed hoping that the doctors will slap me on the back and give their blessing for driving (and riding) :)

It was a big surprise, but I am glad i persisted and by=passed the blockages before any heart attack could occur. I'm sure I would not be here now if I hadn't taken action early....... :D

Best wishes for finding the reason that header glows red at warm up revs..... as i mentioned earlier my GT has stock pipes/tune, K&N airfilter waiting to go in, (haven't ridden it since January :roll: ) but it runs so nicely I'm not really tempted to change anything (I have swapped the rear sprocket to 40T =helps keep the motor in the sweet spot around town and allows 6th gear at legal highway touring speeds).
I’m not much on praying, but I will say one for your appointment tomorrow. Hoping they turn you lose. This past weekend I put 200 miles on my 1600GT and 170 on the SD GT. It sure felt good getting back on the bikes.
2017 KTM Superduke GT, BMW 1600 GT, Ducati 1199 Panigale

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reciprocation23
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Re: Front header turning red @ warmup

Post by reciprocation23 » Tue Oct 16, 2018 12:54 pm

Glad to hear you made a good recovery and that you caught it before you had a heart attack. Hopefully you get back to riding soon because we all know what it's like not to be able to ride at one point or another and it stinks!

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reciprocation23
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Re: Front header turning red @ warmup

Post by reciprocation23 » Tue Oct 16, 2018 12:57 pm

DaveNZ wrote:
reciprocation23 wrote:
Mon Oct 15, 2018 11:20 am
Yes, here in the states, we have 10 percent ethanol in our fuel. I try to avoid it. Never heard about the fuel filter going bad that quickly, I'll have to check it. I had the fuel line issue and master cylinder issue fixed under recall..

I started with carbureted bikes! I know what you're saying lol. I love this bike and want to see it through a lot more miles before it needs major work. Thanks, I'll keep you informed.

Sent from my SM-G935V using Tapatalk
Theres talk on the Aprilia Tuono threads about your fuel octane in the US, and many many Tuono's valves getting burnt out, and the consensus is it could be the fuel, engines running hotter and leaner.there was also a guy on there that said his pipes were glowing red while the bike was idling.
Our country sucks when it comes to fuel and emissions. We don't even get the cool GM cars... I'd love a Holden! Lol. I'll look into the Aprilia thing. I just filled up on non ethanol 91 Octane fuel (only octane non corn juice fuel I can find) and I'm going to see if it changes. If not, back to stock it goes till winter... going to mod it a little over the winter. Thinking about a 16 tooth front sprocket and maybe an intake upgrade.

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Re: Front header turning red @ warmup

Post by Aussie Dave » Thu Oct 18, 2018 12:09 am

Thanks recip23.... :)

Just caught your intention to go 16 t on the front sprox........ I'm sure the other Dave (in New Zealand) would agree to advise you to go to a 40t rear sprox for a couple of reasons:-

1 - the Gt has an amazing "quick change" system = 15mins to swap the rear sprox (no bs) - just read the thread first as you may be tempted to install the new sprox incorrectly (see photo's '40T sprocket' thread in Technical discussion's......page 2).

2 - going 1 tooth smaller on the front would be similar to 3.5 bigger on the rear and the GT's gearing just isn't that far off perfect - you would find it too revvy with the small front cog.

We have both gone the 40t rear and that is perfect (raises highway revs at 100kph by approx 250rpms if my memory is correct) and it allows us to use 6th gear from 110kph (the oem 17/38 wouldn't pull 6th unless travelling at supersonic speeds ie over 125kph). Around town the GT becomes really smooth and will pull 3rd at suburban speed limits (our 60kph-your 40mph).

You could go the 39t rear - it would give about 170rpms if you have more high speed riding with not so much city/suburban work.

Cheers from Aus

Ps I think your 91octane is probably same as our 95 oct (due to the different way of calculating octane rating). If that is correct then it should be fine as I run mine on Aussie 95 octane (recommended by KTM anyway) and have no trouble - though I have the fuel pump recall scheduled for as soon as I am ok to ride to my dealership.

Pps Check yours out - a 2016 model must be long overdue for the fuel pump/filter recall if they are after me with a 2017 model... ;)
Current delights...1290GT-2017, CBR1100XX-2005

Prev loves...Capo1200TP-014, CBR11xx-002, 2xFZR1000genisis-94, FJ1200-89, FJ1100-84, XS1100P, VF1000F-83, CX500, VF750S, KZ1000J1-81, KZ1000ST-79, CB750F2-77, CB360T-74, CB175.. started it all in 1974 ;)

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