Hawk Exhaust HACK Mod: De-Cat and Spark Arrester - Page 3

dpl096 · 06-01-2016, 10:48 AM

Quote:

Originally Posted by Weldangrind

I used a spiffy little 120VAC Cebora (Italian) MIG welder to build my first utility trailer, about 15 years ago. The duty cycle was pathetic, so I installed a fan and drilled a bunch of holes in the rear cover so it could breathe. I then installed a better quality ground cable and clamp, to replace the shoestring that came from the factory. Both mods helped to increase the duty cycle dramatically, but it would still sputter and fail under heavy use.

It was only useful within a small range of metal thickness, so I set my sights on a Miller; haven't looked back since.

If I'm doing any serious welding with my little Handler 110 I open the side panel and set my garage pedestal fan there blowing on it. That greatly increased the cycle ... I still think these small flux welders are the berries. Plus they keep getting cheaper and now with a good review below on a unit from HF there's little reason for a hobbyist not to treat themselves to one.

dpl096 · 06-01-2016, 10:48 AM

Wow this did become a welding thread didnt it !

Weldangrind · 06-01-2016, 11:04 AM

Exposur, I meant to tell you how much I liked your idea of using a hose clamp to attach the screen to the pipe. There's elegance in the simplicity. As well, I really appreciate the pic; I see a couple of vintage Craftsman screwdrivers, a HF grinder, a really cool vise with an anvil horn and pad and a well-worn bench that looks like a repurposed desk. I could spend all day at a bench like that.

Name: Spark Arrestor.jpg
Views: 573
Size: 81.3 KB

Name: Spark Arrestor.jpg
Views: 573
Size: 81.3 KB

pcspecialist · 06-08-2016, 11:34 PM

Do you think cutting a window is better, or cutting the middle as xposur did but not cutting through the cat, just the tubing? Do you think I could pull the tubing apart with the cat remaining in just one half and then be able to pull it out of the other half.

If window, I'm guessing I have to go past the first set of welds?

Alignment when welding it together is easy if you mark the pipe before cutting it.

Weldangrind · 06-09-2016, 11:11 AM

I would window it. You could lay out some cutting marks with welder's chalk first, and then cut about 50% out of the cat area. I think you would only have to cut just slightly beyond the cat area (horizontally, left to right), since the cat seems to be a cylinder shape with no taper.

I agree that it's easy to align if you mark before cutting, but that could still affect length. It's not a big deal, because the bracket at the mid-pipe can be tweaked as necessary, but a window precludes that need.

xposur · 06-10-2016, 11:28 PM

Quote:

Originally Posted by Weldangrind

Exposur, I meant to tell you how much I liked your idea of using a hose clamp to attach the screen to the pipe. There's elegance in the simplicity. As well, I really appreciate the pic; I see a couple of vintage Craftsman screwdrivers, a HF grinder, a really cool vise with an anvil horn and pad and a well-worn bench that looks like a repurposed desk. I could spend all day at a bench like that.

Attachment 6169

Then you would love my garage.! I have almost every tool one could want..and the organization..Everything is set up to be visible in plain sight..and labeled if otherwise. I plan to put a lift in to my garage next year and extent it to a 4 car.

xposur · 06-10-2016, 11:33 PM

I have a section dedicated for car stuff, motorcycle stuff, my carpentry stuff, electric stuff, plumbing stuff,
metal scrap parts, plastics, rubber parts, every single nut bolt screw is organized by size and type.

xposur · 06-10-2016, 11:38 PM

I dont know why they upload sides ways from my phone sometimes. Its not the most recent pic but anyways, every tool and things has its own place in the garage. My dad thought me that. It makes for a happy working environment in the garage.

BTW I just got my stator in the mail the other day so I will get back to working and finishing up tuning my hawk after the 2 week delay. I also got the 32.5 pilot. My bikes been sitting in pieces, cant wait to get it running again

BlackBike · 06-11-2016, 12:46 AM

This means war!

I think it's time for a Show Us Your Shop thread.

pete · 06-11-2016, 03:46 AM

Quote:

Originally Posted by Weldangrind

I used a spiffy little 120VAC Cebora (Italian) MIG welder to build my first utility trailer, about 15 years ago. The duty cycle was pathetic, so I installed a fan and drilled a bunch of holes in the rear cover so it could breathe. I then installed a better quality ground cable and clamp, to replace the shoestring that came from the factory. Both mods helped to increase the duty cycle dramatically, but it would still sputter and fail under heavy use.

It was only useful within a small range of metal thickness, so I set my sights on a Miller; haven't looked back since.

Dose the Cebora still work ?
had 3 Cebora's only one still goes...

200 amp AC/DC pluse tig.. the HF board cooked it's self
worth half the prise of the welder....

150amp DC inverter.... would lose the weld current when ever it felt like it....

The 260amp mig is the only one that still works..

we have a cebora 200amp pluse mig with push/pull gun for alloy
at work.... it's been in the shop for repairs 3 times in 2 years
& never seems to run right....

i will never buy anything again with Cebora on it....

...

Weldangrind · 06-11-2016, 11:38 AM

Quote:

Originally Posted by pete

Dose the Cebora still work ?

Don't know; it was my buddy's, and he has since moved away. He gave it to me, thinking it didn't work. I dialed it in, modified it, built a cart for it and built a trailer with it. After that, I gave it back to him; he was very happy.

LunaTech · 07-26-2016, 11:46 PM

Any update on the cat removal? How much of a difference did it make?

pcspecialist · 07-27-2016, 12:00 AM

Removing the cat and modifying the spark arrester didn't do all that much for me, here's what did: http://www.chinariders.net/showthrea...t=16636&page=4

06-01-2016, 10:48 AM	#32
dpl096 Join Date: Sep 2015 Location: East Central Hellinois Posts: 1,344	Wow this did become a welding thread didnt it ! __________________ ************************************************ * " Time you enjoy wasting, is not wasted." - John Lennon “I predict future happiness for Americans, if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.” ― Thomas Jefferson "If you don't know where you're going any road will take you there" ....George Harrison song
	0

06-01-2016, 11:04 AM	#33
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Exposur, I meant to tell you how much I liked your idea of using a hose clamp to attach the screen to the pipe. There's elegance in the simplicity. As well, I really appreciate the pic; I see a couple of vintage Craftsman screwdrivers, a HF grinder, a really cool vise with an anvil horn and pad and a well-worn bench that looks like a repurposed desk. I could spend all day at a bench like that. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	1

06-09-2016, 11:11 AM	#35
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I would window it. You could lay out some cutting marks with welder's chalk first, and then cut about 50% out of the cat area. I think you would only have to cut just slightly beyond the cat area (horizontally, left to right), since the cat seems to be a cylinder shape with no taper. I agree that it's easy to align if you mark before cutting, but that could still affect length. It's not a big deal, because the bracket at the mid-pipe can be tweaked as necessary, but a window precludes that need. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

06-11-2016, 12:46 AM	#39
BlackBike Join Date: Feb 2016 Location: George West, Texas Posts: 4,097	This means war! I think it's time for a Show Us Your Shop thread. __________________ ***************************************** 2015 Bashan"Blaze" BS250GY-31 (DB-07K-250) GONE 2017 Suzuki V Strom 650 XT "We are all born ignorant, but one must work hard to remain stupid." ~Benjamin Franklin~
	1

06-08-2016, 11:34 PM	#34
pcspecialist Join Date: May 2016 Posts: 583	Do you think cutting a window is better, or cutting the middle as xposur did but not cutting through the cat, just the tubing? Do you think I could pull the tubing apart with the cat remaining in just one half and then be able to pull it out of the other half. If window, I'm guessing I have to go past the first set of welds? Alignment when welding it together is easy if you mark the pipe before cutting it.
	0

07-26-2016, 11:46 PM	#42
LunaTech Join Date: Jul 2016 Location: Jonesville, NC Posts: 136	Any update on the cat removal? How much of a difference did it make?
	0

07-27-2016, 12:00 AM	#43
pcspecialist Join Date: May 2016 Posts: 583	Removing the cat and modifying the spark arrester didn't do all that much for me, here's what did: http://www.chinariders.net/showthrea...t=16636&page=4
	0