Templar X catalytic converter glowing on long idle.

Sportbike83 · 07-25-2023, 04:19 PM

Anyone else run in to this. I'm considering just punching it out. I've tried re jetting bothe the stock 28 and a PE30 all the way up to a 48 pilot. Still at a long stop light it will glow.

**JerryHawk250** · 07-25-2023, 04:44 PM

What RPM'S is it idling at? Should be around 1,500 rpms. A high idle will heat it up quick.

Sportbike83 · 07-25-2023, 05:18 PM

Quote:

Originally Posted by JerryHawk250

What RPM'S is it idling at? Should be around 1,500 rpms. A high idle will heat it up quick.

When warmed it runs between 1500 and 2000. I'm more wondering now if during manufacturing this one was damaged a little and is to restrictive. It doesn't extend past it and nothing before it. Just that section of catalyst.

**JerryHawk250** · 07-25-2023, 05:27 PM

Quote:

Originally Posted by Sportbike83

When warmed it runs between 1500 and 2000. I'm more wondering now if during manufacturing this one was damaged a little and is to restrictive. It doesn't extend past it and nothing before it. Just that section of catalyst.

Might be an intake air leak making it run lean.

Sportbike83 · 07-25-2023, 05:29 PM

Quote:

Originally Posted by JerryHawk250

Might be an intake air leak making it run lean.

I think I have a can of Brake clean. I'll check that tonight

Huck369 · 07-26-2023, 06:57 AM

Running lean will cause that for sure

Megadan · 07-26-2023, 09:19 AM

Generally speaking, running rich causes only the cat to glow. Lean would cause most of the head pipe to glow as well.

What's the difference? Lean exhaust is hot right out of the head. Rich exhaust is actually cooler. Why does the cat glow? Unburned hydrocarbons burn off at the cat, and if the engine has a PAIR system (air injection) it really ramps up that burn and makes it get very hot.

This was seen a lot in the mid 2000's on diesel trucks that had regen cycles for the cats. The computer on those trucks would ramp up the engine speed to spool the turbo, and do a double injector pulse to get more fuel into the exhaust to help burn off carbon by igniting raw fuel in the cat with a bunch of fresh air. The cats would glow red, and they sometimes got so hot they would melt the cab of the truck or the asphalt under them.

07-25-2023, 04:19 PM	#1
Sportbike83 Join Date: Jun 2023 Posts: 10	Templar X catalytic converter glowing on long idle. Anyone else run in to this. I'm considering just punching it out. I've tried re jetting bothe the stock 28 and a PE30 all the way up to a 48 pilot. Still at a long stop light it will glow. Attached Thumbnails
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07-25-2023, 04:44 PM	#2
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,713	What RPM'S is it idling at? Should be around 1,500 rpms. A high idle will heat it up quick. __________________ 2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
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07-26-2023, 06:57 AM	#6
Huck369 Join Date: Apr 2008 Location: Somerset, KY Posts: 687	Running lean will cause that for sure __________________ Huck 2013 Honda NC700X 2013 Moto Guzzi V7 Stone 2016 AJP PR4 2022 Templar X 250 2021 Sondors Metacycle AMA Life Member
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07-26-2023, 09:19 AM	#7
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,110	Generally speaking, running rich causes only the cat to glow. Lean would cause most of the head pipe to glow as well. What's the difference? Lean exhaust is hot right out of the head. Rich exhaust is actually cooler. Why does the cat glow? Unburned hydrocarbons burn off at the cat, and if the engine has a PAIR system (air injection) it really ramps up that burn and makes it get very hot. This was seen a lot in the mid 2000's on diesel trucks that had regen cycles for the cats. The computer on those trucks would ramp up the engine speed to spool the turbo, and do a double injector pulse to get more fuel into the exhaust to help burn off carbon by igniting raw fuel in the cat with a bunch of fresh air. The cats would glow red, and they sometimes got so hot they would melt the cab of the truck or the asphalt under them. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
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