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05-12-2016, 10:12 AM | #1 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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I'd either remove the cat (if you have access to a welder) or replace the header with the non-cat version, per BlackBike's recommendation. Once the cat is gone, you can re-jet to compensate, and see if there's a benefit. After that, you can decide if you want a new muffler.
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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 |
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05-12-2016, 10:30 AM | #2 | |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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Quote:
First, going to do the simplistic solution and remove baffle. Test, if it's not satisfying I'm going to run the bike at least another few hundred miles before messing with the cat or thinking about replacing. Thanks for the advice. |
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05-12-2016, 10:49 AM | #3 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Removal is ok for testing, but I don't recommend poking a hole in it. That's not easily reversible.
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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 |
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05-12-2016, 04:15 PM | #4 |
Join Date: Jun 2009
Location: Brisbane, Queensland, Australia
Posts: 648
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what about the weight of the stock muffler? an unrestricted header and lightweight performance muffler will make a noticeable difference with the right carbie setup.
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1971 Garelli Gulp 50cc with open ports and 16 mm Bing Carbie + 1980 Honda XL 223 ZS + 2007 Zongshen LZX200G + DR400SM |
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05-12-2016, 04:26 PM | #5 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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One of the most important things you can do is keep your options open until it's broke in. These CG motors change personality continuously (at least all of mine have) until they're loosened up.
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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05-12-2016, 04:37 PM | #6 |
Join Date: Dec 2015
Location: CO
Posts: 1,525
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I'm one of the few who can't afford to lose any more weight, my motorcycles have to do that for me
So once my friend gets his TIG welder I will drop a good 15 - 16lbs off our Bashan WILL exhaust system , that combined with weight I dropped off when I ditched the bulky air box/emissions nonsense that 'didn't do squat' for a UNI Pod Filter... the bike is almost to that "20 lb diet requirement" , and it should have a few extra ponies too the way the exhaust was restricted on our bike
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"Think as you like... but this self proclaimed Professor is always right" - Buckshot "You never know what someone is hiding beneath their smile..." - NinjaTom - R.I.P. |
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05-13-2016, 09:27 AM | #7 |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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Removed baffle last night did maybe 20 miles to test. I couldn't really tell differences it felt more stable at 60ish but I also removed my rubbers from the foot pegs. Also, it felt like it let open a little more while at full throttle. But nothing substantial to report on preformance. Sound wise, a 100 times better it sounds really good with the baffle removed. I would recommend this to anyone, just to have a little louder exhaust to make people more aware around you. i think this is all I'm going to do with the exhaust for awhile I'll update when I decide to swap it or mod it anymore.
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05-13-2016, 05:31 PM | #8 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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You probably won't notice much as long as the cat is upstream. That's your main exhaust flow obstacle.
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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05-14-2016, 11:38 AM | #9 | |
Join Date: Apr 2009
Posts: 770
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Quote:
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05-13-2016, 03:07 PM | #10 | |
Join Date: May 2016
Posts: 583
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Quote:
Thanks |
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05-13-2016, 03:31 PM | #11 |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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Will do that. I'm still
Making a few mods. Will post pics here in the next few days. What kind of info do you want?
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2008 CRF 450 2015 hawk 250 -Ancap Revolution- "There can be no such thing as 'fairness in taxation.' Taxation is nothing but organized theft, and the concept of a 'fair tax' is therefore every bit as absurd as that of 'fair theft.'" -Murray Rothbard |
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05-13-2016, 03:44 PM | #12 |
Join Date: May 2016
Posts: 583
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05-13-2016, 03:54 PM | #13 |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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i'll have to take some pics.
but basicly, the bracket and nuts (Rear slider) that are used to to tighten the chain they are shit. so i swapped them for better washers and nuts. the chain guide, is the rubber piece on the frame that helps guide the chain into the countershaft sprocket. on my bike if you lined up your sprockets perfectly this chain guide actually will not line up with countershaft. so i got rid out it, this won't necessarily throw the chain, but it's not helping.
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2008 CRF 450 2015 hawk 250 -Ancap Revolution- "There can be no such thing as 'fairness in taxation.' Taxation is nothing but organized theft, and the concept of a 'fair tax' is therefore every bit as absurd as that of 'fair theft.'" -Murray Rothbard |
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05-13-2016, 04:37 PM | #14 |
Join Date: May 2016
Posts: 583
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so you didn't swap the chain guide, you simply removed it?
I was thinking about filing down the ridge on it so it no longer guided the chain but did protect the swingarm. |
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05-13-2016, 04:54 PM | #15 |
Join Date: Apr 2016
Location: North Utah
Posts: 37
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yes i finally removed it. i did try to swap it with a old honda chain slider but couldn't get that to quite line up either. also just filing it down is probably a better idea haha
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2008 CRF 450 2015 hawk 250 -Ancap Revolution- "There can be no such thing as 'fairness in taxation.' Taxation is nothing but organized theft, and the concept of a 'fair tax' is therefore every bit as absurd as that of 'fair theft.'" -Murray Rothbard |
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Tags |
baffle, enduro, hawk, mods |
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