I bought the K&N because it's reusable. Can you do the same with the Emgo?Hey, so I know this has been discussed in the past, but it was suggested I start a new thread because it's been a while. So, armed with that wonderful PDF that Glen Chapman added, and the decision made I was going to do this myself, I went looking for an air filter. I'll spare you all the detail about what's OEM, what's available, etc. I found I could easily acquire a K&M for ~$65. Ditto for the Honda OEM, if you could actually find one. However, the Emgo air filter is available thru several sources, I have Amazon Prime so I ordered there, $26.05 before tax! Meets OEM specs, might not have quite the volumetric efficiency of a K&M, but it's almost $40 less! Here's the LINK if you're interested...
Air filter info
Hey, so I know this has been discussed in the past, but it was suggested I start a new thread because it's been a while. So, armed with that wonderful PDF that Glen Chapman added, and the decision made I was going to do this myself, I went looking for an air filter. I'll spare you all the detail about what's OEM, what's available, etc. I found I could easily acquire a K&N for ~$65. Ditto for the Honda OEM, if you could actually find one. However, the Emgo air filter is available thru several sources, I have Amazon Prime so I ordered there, $26.05 before tax! Meets OEM specs, might not have quite the volumetric efficiency of a K&N, but it's almost $40 less! Here's the LINK if you're interested...
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I bought the K&N because it's reusable. Can you do the same with the Emgo?
Be very careful on you air filter selection. When I went to replace my air filter under all the top plastic,
my choice was Honda or K&N. The 'Air Box' for the filter to sit in is a perfect fit for the Honda brand
and a slightly open space for the K&N air filter. Honda's air filter has two threaded screws on one
side and a foam gasket on the other side for a tight seal within the Air Box. I have attached a pdf file
that another CTX1300 owner had provided in a past forum. Check out the picture on page 13 or 15
for a better view. The K&N filter does not form a tight seal against road dust and dirt. If you really want
to use K&N, I suggest you buy some single side sticky weather stripping from home depot. This foam
gasket is the secret in a good air tight fit. Since I never saw an EMGO brand air filter, best guess is the
old saying - you get what you paid for. Go cheap and you may regret your decision later.
Lastly - the two local motorcycle shops I go to for work on my CTX1300 do not recommend the K&N unit
due to the excess air volume/restriction air flow. Some Honda dealers on the West Coast should have one.
My filter will go 30-35K miles before I make a change again.
my choice was Honda or K&N. The 'Air Box' for the filter to sit in is a perfect fit for the Honda brand
and a slightly open space for the K&N air filter. Honda's air filter has two threaded screws on one
side and a foam gasket on the other side for a tight seal within the Air Box. I have attached a pdf file
that another CTX1300 owner had provided in a past forum. Check out the picture on page 13 or 15
for a better view. The K&N filter does not form a tight seal against road dust and dirt. If you really want
to use K&N, I suggest you buy some single side sticky weather stripping from home depot. This foam
gasket is the secret in a good air tight fit. Since I never saw an EMGO brand air filter, best guess is the
old saying - you get what you paid for. Go cheap and you may regret your decision later.
Lastly - the two local motorcycle shops I go to for work on my CTX1300 do not recommend the K&N unit
due to the excess air volume/restriction air flow. Some Honda dealers on the West Coast should have one.
My filter will go 30-35K miles before I make a change again.
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Guess I need to read some more here on this forum. I thought I'd solved the issue...I bought the K&N because it's reusable. Can you do the same with the Emgo?
Thanks for that, Ramrod. Any specific feedback on that EMGO filter? I'll pay $65 if it's warranted, not like I can't afford it. Someone posted that, after drilling the two holes, the thick plastic top kept him from using the washers, but otherwise worked great.Be very careful on you air filter selection. When I went to replace my air filter under all the top plastic,
my choice was Honda or K&N. The 'Air Box' for the filter to sit in is a perfect fit for the Honda brand
and a slightly open space for the K&N air filter. Honda's air filter has two threaded screws on one
side and a foam gasket on the other side for a tight seal within the Air Box. I have attached a pdf file
that another CTX1300 owner had provided in a past forum. Check out the picture on page 13 or 15
for a better view. The K&N filter does not form a tight seal against road dust and dirt. If you really want
to use K&N, I suggest you buy some single side sticky weather stripping from home depot. This foam
gasket is the secret in a good air tight fit. Since I never saw an EMGO brand air filter, best guess is the
old saying - you get what you paid for. Go cheap and you may regret your decision later.
Lastly - the two local motorcycle shops I go to for work on my CTX1300 do not recommend the K&N unit
due to the excess air volume/restriction air flow. Some Honda dealers on the West Coast should have one.
My filter will go 30-35K miles before I make a change again.
And don't forget that other than those 2 bolt holes it is the same air filter as on the ST1300, which sometimes can be found for less. All that would need to be done with the ST version of the filter is to hold the CTX version to it and drill those holes. If the top where the bolts go through is thicker than the OEM filter top then slightly longer bolts would be needed but those cost less than the price difference... usually. At least the ST filter USED to cost less but same quality.
Ya know, I was thinking about how I was going to line up those holes, never even considered putting them top to top and marking the location, thanks! BTW, checking Honda Sport Parts Warehouse, the CTX model was $58.62, the ST model was $44.68. I might have to think about that a bit....And don't forget that other than those 2 bolt holes it is the same air filter as on the ST1300, which sometimes can be found for less. All that would need to be done with the ST version of the filter is to hold the CTX version to it and drill those holes. If the top where the bolts go through is thicker than the OEM filter top then slightly longer bolts would be needed but those cost less than the price difference... usually. At least the ST filter USED to cost less but same quality.
I don't want to open a different can of worms here, but. Changing the air flow/ restriction, be it intake or exhaust, has an effect on fuel-air mix of carburators. Makes the bike run too lean.Be very careful on you air filter selection. When I went to replace my air filter under all the top plastic,
my choice was Honda or K&N. The 'Air Box' for the filter to sit in is a perfect fit for the Honda brand
and a slightly open space for the K&N air filter. Honda's air filter has two threaded screws on one
side and a foam gasket on the other side for a tight seal within the Air Box. I have attached a pdf file
that another CTX1300 owner had provided in a past forum. Check out the picture on page 13 or 15
for a better view. The K&N filter does not form a tight seal against road dust and dirt. If you really want
to use K&N, I suggest you buy some single side sticky weather stripping from home depot. This foam
gasket is the secret in a good air tight fit. Since I never saw an EMGO brand air filter, best guess is the
old saying - you get what you paid for. Go cheap and you may regret your decision later.
Lastly - the two local motorcycle shops I go to for work on my CTX1300 do not recommend the K&N unit
due to the excess air volume/restriction air flow. Some Honda dealers on the West Coast should have one.
My filter will go 30-35K miles before I make a change again.
I'm not sure why it's so necessary to screw the air filter to the air box lid.
Since the lid is going to press the filter down, how's the filter going to pop up and out?
Since the lid is going to press the filter down, how's the filter going to pop up and out?
Honda put screws to hold the filter in place on the lid for the CTX because of how much closer the lid is to other stuff on the bike making it almost impossible to fit the lid on without displacing the filter. The ST has more space to fiddle with the lid. Yes, both bikes use the same air box and the lid does hold it down, but on the CTX just fitting the lid on while keeping the filter in the right place would be an issue without the screws holding it in place.
BTW- this bike has FI (fuel injection) and the computer is capable of adjusting automatically to some extent any variation of the air/fuel mix to ensure a correct mix. No carbs. If it did have carbs messing with the air flow would be an issue that would require the carbs to be adjusted to compensate.
BTW- this bike has FI (fuel injection) and the computer is capable of adjusting automatically to some extent any variation of the air/fuel mix to ensure a correct mix. No carbs. If it did have carbs messing with the air flow would be an issue that would require the carbs to be adjusted to compensate.
I really don't have an issue putting the air box back together, so I didn't fix my K&N filter to the lid.Honda put screws to hold the filter in place on the lid for the CTX because of how much closer the lid is to other stuff on the bike making it almost impossible to fit the lid on without displacing the filter. The ST has more space to fiddle with the lid. Yes, both bikes use the same air box and the lid does hold it down, but on the CTX just fitting the lid on while keeping the filter in the right place would be an issue without the screws holding it in place.
BTW- this bike has FI (fuel injection) and the computer is capable of adjusting automatically to some extent any variation of the air/fuel mix to ensure a correct mix. No carbs. If it did have carbs messing with the air flow would be an issue that would require the carbs to be adjusted to compensate.
As far as the fuel air mix. It reminds me how some advice keeps going on from older technology to the new, where said advice no longer applies.
A friend was told by his grandfather to never store batteries on a concrete or metal surface, they would discharge.
This advice goes back to the days when batteries had a wooden container, not plastic.
Yeah, I noticed K&N advertises that their air filters provide enhanced airflow. But I'd think the oxygen sensor would compensate for that and adjust the throttle body mixture. Still, I didn't go the K&N route, I went with that EMGO filter, they claim it meets or exceeds OEM specs. I guess I'll find out here soon enough, and I'll post my impressions. Might be a while though; I have 12,600 miles or so on the CTX1300 now, and everything I've been reading on this forum is that unless I'm riding in dusty conditions a lot (and I'm not) there's no need to replace the air filter every 12K miles.I don't want to open a different can of worms here, but. Changing the air flow/ restriction, be it intake or exhaust, has an effect on fuel-air mix of carburators. Makes the bike run too lean.
I just replaced my air filter last night at 13,500K miles. Since it was late I didn't take pictures of the old filter but I will when I get home this afternoon to share with the group. Glad I did, it needed to be replaced. All along I was thinking I could push it to about 20K miles since I do not ride in dusty conditions. I went with OEM Honda, had a terrible experience with a K&N oil filter while on a road trip in the middle of nowhere. Getting to the airbox wasn't all that bad, I could have replaced it in One hour and a half, but since I have all the plastics off the bike I'm going to install fog lights. I have a couple of wiring harness with relays and a ON-OFF-ON handle bar switch for this. Similar setup that I have on my second bike ('15 FJR1300A).
Thanks for the input, I have a bit over 13K on my CTX1300. Maybe I'll reconsider replacing mine sooner rather than later.I just replaced my air filter last night at 13,500K miles. Since it was late I didn't take pictures of the old filter but I will when I get home this afternoon to share with the group. Glad I did, it needed to be replaced. All along I was thinking I could push it to about 20K miles since I do not ride in dusty conditions. I went with OEM Honda, had a terrible experience with a K&N oil filter while on a road trip in the middle of nowhere. Getting to the airbox wasn't all that bad, I could have replaced it in One hour and a half, but since I have all the plastics off the bike I'm going to install fog lights. I have a couple of wiring harness with relays and a ON-OFF-ON handle bar switch for this. Similar setup that I have on my second bike ('15 FJR1300A).
Wonder how riding a lot in wet weather would affect the air filter? Would crap build up faster or turn to a solid when it dried out? Thought of this remembering a trip last year with all day rain going and a half a day of heavy heavy rain coming home. What’s the thoughts on it?
Filter would get more dirt for sure. Maybe not turning solid when dry though, but would have to test that theory. 
Sorry it took so long to get back to you. Winters in Colorado Springs are hard and long grin. No, the Emgo is a use it once and toss it filter, but at the price point, compared to my annual mileage (low), it would take more years than I have left to break even on that. I just installed my air filter yesterday, BTW. What a pain. So far, everything's great, no issues.I bought the K&N because it's reusable. Can you do the same with the Emgo?
This looks nearly exactly like my OEM Honda filter that I replaced yesterday, with almost exactly the same mileage on it, ~13,750Old filter out at 13,500 Miles. Not too bad but glad I did. Amazing the amount of bugs I found outside the air box facing the filter. Aside from that the old filter was dry, no oil anywhere the airbox except for the foam gasket.
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View attachment 47850
Hey Scott, long time no hear. Glad you got your new filter in and ready to go. I am going to change my filter in 4000 miles and may need options if I cant find the OEM. And as the CTX now has a new stable mate (a Guzzi Mandello) that is getting most of my riding attention, it may take awhile to put 4000 miles on the CTX.Sorry it took so long to get back to you...
Stirling
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