CBR300R - How to Remove the Fuel Tank, Air Box, and Throttle Body
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- เผยแพร่เมื่อ 12 มิ.ย. 2024
- How to remove the fuel tank, air box, and throttle body on a CBR300R. Had a chance to try out my endoscope camera while undoing the connections under the fuel tank. One step closer to droping the engine out!
These tasks are not technically difficult, but some of the connections are hard to reach. This whole process should take less than 45 minutes if the fairings are already off.
Remove the seats and fairings: • CBR300R - Fairing Removal
Remove the fuel tank cover by pulling it up and off the 2 bosses.
Remove the forward fuel tank bolt with a 12mm socket, and the rear fuel tank bolts with a 10mm socket
Tip the fuel tank up to give a bit more access to the connections underneath.
Unplug the fuel pump electrical connection.
Unclip the wire from the setting plate.
Pull off the two vent hoses.
Disconnect the fuel line by pressing the tab forward and then down while pulling the connection backward.
Life the tank up and off - set it down with some support so the fuel filter doesnt get damaged.
Airbox and throttle body:
Unplug the grey 2 pin connector.
Unplug the black 4 pin connector.
Pull back the spring clamp on the black tube on the left side and pull it off the barb
Unplug the black 2 pin connector near the black tube.
Free the fuel vent from the hose retainer.
Remove the 4 air box bolts with a 10mm socket.
Loosen the two band-clamp screws at the forward end of the throttle body using a philips screwdriver.
Lift the airbox/throttlebody assembly up a bit for better access to the remaining connections.
Unplug the black 5 pin connector.
Pull back the spring clamp on the black tube under the air box and pull it free from the barb.
Pull back the spring clamp on the clear tube under the air box and pull it free from the barb.
Remove the two throttle cable bracket bolts with a philips screwdriver.
Pull out the two throttle cables.
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Filmed with a Canon Vixia HF R800 and edited in Lightworks 14.5.
Voiceover recorded in Audacity with a Blue Yeti mic.
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Thanks for the shout out in this episode! Your attention to detail and step by step instructions really make this job a breeze!
This is an extremely intelligent series. The preponderance of owners are going to be newbies.. for whom everything about a machine is new territory. They could not ask for better instructions.
Thanks for making this video. I’m planning on installing an EJK fuel controller
This was great, wish I had something this detailed a year ago lol.
That's great. Thank you for doing that
Glad it was helpful to you, and thanks for taking the time to leave a comment...really makes my day :)
Another great detailed video! I have to remove the tank to put in a NGK spark plug after the break in period. I ended up buying Lucas synthetic motorcycle oil while I wait for the Maxima oil to get here. I’m hoping the Lucas looks a lot cleaner than the factory oil did after 300 miles.
Thanks a lot mate!
Having a hard time finding the idol adjustment cable. I know its on the left side but do I have to remove the gas tank to find it or just the left fairing?
This is ridiculously hard when actually trying it. I cant seem to get the fuel line disconnected and I worry I might break it. Almost like Honda engineered it to be over complicated so only their certified engineers can work on it.
Before trying to push the white retainer clips on the fuel line where it connects to the tank, there is a small rubber tab that needs to be pulled loose. This rubber tab is packed in between the retainer clip and the inner tube to prevent accidental loosening.
Hello. I’m replacing my rear brakes. I got one out but other old rear brake is stuck. How do I take it out. Help pls. Thansk
Hi bro
I have some qurry about
Cbr300r fairing headlight and tank can fit with cbr250r chassis?
I wish I knew...I only ever owned and worked on the 300....not sure how much part commonality there is with the 250
2:33 so yeah i accidently dropped the whole tank and this is the part that broke. So i need a brand new tank? i cant find that plastic under tanks part number anywhere.
Oof...I think that white barb is part of the fuel pump assembly. Here's a link to the bike bandit page that has an exploded view of the whole fuel tank:
www.bikebandit.com/oem-parts/2015-honda-cbr300r-fuel-tank/o/m156899sch908183
Unfortunately, it looks like it's almost $300 for a new fuel pump! by itself...
Hope that helps, and good luck!
hello, maybe someone that watches this or even yourself can answer my question… i just got my CBR300R last week from an auction and i want to remove the gas tank but i don’t know if the remaining gas will come out from one of the pipes that need to be removed (can’t take it out from the gas cap because i don’t have the keys)
To get gas out from a locked gas tank, you'll probably need to put 12 volts power into the fuel pump - it will push fuel from the tank to the fuel line. If you've got the tank off of the bike, just put a fuel rated plastic tube or fuel line from the fuel pump into a gas can or a bucket, and then give power to the fuel pump. Pretty sure the 5 pin connector leading to the fuel pump has a black and a red...you'd need to put +12 v on the red, and ground on the black on the corresponding pins that are on the fuel pump itself.
good luck, and let us know how it works out!
@@lightningfrog27 thank you for answering!! turns out the fuel pump was dead and i changed it, when i disconnected everything it didn’t spill any gas (which was my concern) so i just disassembled all the fuel pump and let the gas drain through that whole:) thank you for the help and awesome videos👍🏼👍🏼
Awesome! Glad that worked well for you 🙂
Do I need to empty the entire gas tank so it won't leak gas, when removing fuel line and hoses?? Just don't want gas spraying everywhere. Help!!
No, the gas doesn't need to be emptied. Just a teaspoon or less will drip out because of what is in the line. Everything else is behind the fuel pump, so it can't drain unless you flip the tank over or energize the fuel pump.
Good luck!
This was my question too 🙂
Yall are life savers. THX!
At 3:38 you can see how Honda Angled the rear trellis frame UP... for the Super Douche look... I would love to take a torch to this.. and make that rear frame Horizontal.. so the damn thin could have a traditional ( UJM/European/British) long flat seat, which permits many riding positions, a pillion passenger not so high they can bag ducks with their purse, and a rational place to mount panniers ( side bags) to maintain a low center of gravity, and permit traveling.. without a Dildo Albatross box 11 feet high. Hello Honda ?
I changed my tank because there was an ugly hit on it, I did all you shown in the video and now when i put gas in the tank, the gas flows on my crb... What could it be?
Hey man - sorry to hear it's leaking. The fuel *should* only come out of the tank through the fuel line. Assuming there's no damage to the tubing, i'd guess that maybe the fuel line connector didnt fully snap into place when you put it back together.
Best way to double check would be to tip the tank up a bit (like you see around 1:43 in the video), and pour some fuel in, and look underneath to see where it's escaping from. Once you've determined what's making it leak, it will be a lot more straightforward to resolve.
Good luck, and let me know how it turns out!
@@lightningfrog27 Wow thanks a lot for this quick reply, i'll try it tonight and give you a feed back!!
@@lightningfrog27 Omg i'm so happy !! I fixed my motorcycle. It was just missing the joint between the plastic shit and the tank (you don't show it in the video because you don't have to remove it). But thanks a lot for your series that helped me a lot to change my tank!!
Great work resolving the leak! Feels great, doesn't it?
Thanks for watching my vids, enjoy your bike, and ride safe 👍
@@lightningfrog27
Hi! Another problem has just appeared on my bike since changing the tank.
When I turn the throttle to maximum, the bike loses power. Do you know what can be the problem?? :/