March 25th, 2012, 01:53 PM | #1 |
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FI cold startup, my 2005 project bike
I've been meaning to video a cold start to show how my do-it-yourself 2005 EX-250 fuel injection project bike behaves. It's a whole different experience from the carbs with their choke lever arrangement.
Finally did it as a by-product of the video from my "0 to 60" testing for @choneofakind 's thread. |
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March 25th, 2012, 02:06 PM | #2 |
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Name: Gabriela
Location: Battle Ground W.A
Join Date: Dec 2011 Motorcycle(s): 05 Ninja 250 Posts: 140
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Ummm... I think you should come do that to mine .
Have you experienced any mechanical problems since you changed it to FI? Any overheating issues? That is pretty awesome, I'm kind of jealous |
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March 25th, 2012, 02:21 PM | #3 | |
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The hardest part was learning how to configure the fuel system, where and how to mount things and what type of components to use. I made a few bad choices when I initially built the fuel system causing it to trap air which made the pump's impeller cavitate. Never had any problems related to the bike's coolant system. I did install the ThermoBob modification that helps it to warm up more quickly. The ThermoBob also causes the engine to have a much more uniform overall temperature (which is something vehicle engineers strive for because it reduces engine wear and increases effeciency). The only temperature problem I've had was, once again, related to my first configuration of my fuel system. My fuel system doesn't use an in-tank pump so there's no return of the extra fuel pump output to the tank for cooling. In my first version of the fuel system I had heat buildup problems so I added a very small fuel cooler which completely solved the problem. |
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March 25th, 2012, 02:28 PM | #4 |
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once again, Greg, that's an absolutely awesome ninja 250 you've built yourself.
Side note: I was watching the temp gauge just keep rising right up into the proper operating temp, even when cool outside. Maybe I should invest in one of these thermo-bob's. Interesting idea for a product, and it was really nice to actually watch one in action. btw, that likely was the best placement of the microphone possible. That was probably the most true-sounding ninja 250 video in comparison to hearing the real thing when riding my own |
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March 25th, 2012, 05:45 PM | #5 | |
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I think those of us that tinker and modify will all agree we just can't stop ourselves. In other words, this was bound to happen. Would you believe that in the two years I've had it up and running with fuel injection I've never had the opportunity to show it to anyone who gives half a crap about motorcycles? Not even once. I don't have any close friends who ride and I don't know anybody here in Spokane who rides an EX-250. I don't even have any friends in the local area that you could call "gear-heads" in even the most generic way. My brother calls them all "suburban lawn drones". |
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March 25th, 2012, 06:50 PM | #6 |
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wow. That's incredibly lame. Haha if only they knew what your bike was when you rode by.
You should get some vinyls made like mine, only instead of 250R, it should say 250R Fi |
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March 25th, 2012, 07:12 PM | #7 | |
ninjette.org member
Name: Gabriela
Location: Battle Ground W.A
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April 1st, 2012, 02:23 PM | #8 |
ninjette.org certified postwhore
Name: D
Location: Palm Beach, FL
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Me too. I bought a mostly useless EFI kit. I suppose I could have done worse though. When I finish converting mine, I suspect its going to have a lot in common with yours. So I might be bugging you for advice.
For riding buddies, check out local riding clubs and your local ABATE chapter: Inland Empire Sweet Old Bob's 2nd Tuesday of the month at 6:00 pm Corner of Trent and Ralph 3243 E Trent Avenue Spokane, WA 99220 509-710-7964 Based on the way you rode in the video, I suspect you'd enjoy riding with cruiser guys more than sport bikers. I have a friend that rides like you and if I lead I always end pulling over and waiting so he can get through a light. We have totally different riding styles. I've ridden with my local ABATE chapter before and I'm not very keen on their loud pipes. The way I ride is that I constantly listen to the engine, road, traffic, & tires. And I react based on what I'm hearing. When I ride with those guys, it messes me up and end up not being able to control the bike well. Regarding the microphone location, that's a good spot. I know other guys on youtube are mounting them inside their helmets so they can narrate as they go. Me, I prefer to keep it simple and use whatever is attached to the camera. I can always edit that out later. Anyhow, congrats to you and your EFI conversion.
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April 2nd, 2012, 12:46 PM | #10 |
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cool stuff but... how was it running before? it seems about the same as my ninja now, but i never need to use the choke.
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April 2nd, 2012, 07:02 PM | #11 |
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It ran fine, such as it was. Some of us tinker, change and create. I've done it all my life.
I liked the stock EX-250, but I love my own unique version of the bike. And yes, it regularly and reliably starts immediately on the first press of the button at 20 degrees, which, according to Weather.com, is the lowest temperature ever recorded in Carlsbad, California (1963). You're right, the difference that the FI makes in the bike isn't an overly obvious thing during most of its operation. |
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April 2nd, 2012, 07:14 PM | #12 | |
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April 3rd, 2012, 02:36 AM | #13 | |
Old Guy, New Bike
Name: Mike
Location: Nagasaki, Japan
Join Date: Jun 2011 Motorcycle(s): 2011 Blue Ninja 250R, Yamaha SRV250 Posts: 133
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I love to tinker & build and don't know anyone who gives a crap. Especially here in Japan, where people generally take their vehicle to the shop to do anything. Reading your post reminded me of the blank looks I got trying to discuss/explain my power commander install & what fuel mapping is with the other expats that I work with. It was interesting watching how fast your bike warms up with the ThermoBob. Definitely piqued my interest. Could be scheduled for my next round of mods. Riding this winter, I often thought the bike stays too cold. Since my commute is only about 15 minutes, it would rather that the bike warm up and stay properly warm. "suburban lawn drones" |
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April 3rd, 2012, 04:36 PM | #14 |
is stunning! ;)
Name: Matz
Location: Elgin, Scotland
Join Date: Aug 2011 Motorcycle(s): CBR600 FS2, XT350 Posts: 132
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42F a cold start! That's a summer in Scotland!
I'm very impressed with your fuel injection system, we started doing something similar at college to an old Robin Reliant owned by our lecturer, we got half way through before deciding just to stick an old Yamaha R6 engine in it instead, but hey, that did have fuel injection! Needless to say it was difficult to drive, the clutch in particular proved tricky, they are after all designed to be used with a lever and not a rusty pedal! |
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April 3rd, 2012, 05:43 PM | #15 | |
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I know the episodes are years old now, but I've enjoyed watching the guys from Top Gear repeatedly destroying Robin Reliants and Morris Marinas. There seems to be a general hatred of those two vehicles throughout the U.K. Finding creative ways to destroy them is apparently the absolute height of comedy. |
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April 4th, 2012, 03:21 AM | #16 |
is stunning! ;)
Name: Matz
Location: Elgin, Scotland
Join Date: Aug 2011 Motorcycle(s): CBR600 FS2, XT350 Posts: 132
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I have always been tempted to get one, over here you can drive one on a motocycle license, not sure their what you would call a honey magnet though!
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