June 27th, 2016, 07:16 PM | #1 |
ninjette.org newbie
Name: Fernando
Location: Carson ia
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100 ohm resistor
I bought a new ignition switch for my 95 ninja 250 and it doesn't have the 100 ohm resistor in it. Which wire so I need to solder it into? On my old one its on the brown wire but ive read I'm supposed to solder it into the grey wire. Any help is appreciated.
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June 27th, 2016, 07:43 PM | #2 |
EX500 full of EX250 parts
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Gray goes to the igniter, where you need the resistor. Brown just feeds the switched circuits in the junction box.
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June 27th, 2016, 07:45 PM | #3 |
ninjette.org newbie
Name: Fernando
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Okay so leave the brown alone, cut and splice the resistor into only the grey wire before the plug in correct?
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June 28th, 2016, 07:22 PM | #4 |
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Does this help?
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June 29th, 2016, 08:19 AM | #5 | |
EX500 full of EX250 parts
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Quote:
There shouldn't be any resistors in the brown wire. That would simply reduce the power going to your horn, ignition, and all lights. If there are any resistors there, someone screwed something up, and you should fix that.
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September 23rd, 2016, 08:04 AM | #6 |
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Name: Robert
Location: Fl
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What wattage should the resistor be? I called radio shack and they have them in stock but they have a bunch of different wattage ratings?
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September 24th, 2016, 11:55 AM | #7 | |
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Quote:
What is the function of this resistor? How does it prevent the engine to be started up without a proper key?
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September 25th, 2016, 06:36 AM | #8 |
EX500 full of EX250 parts
Name: Bill
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MOTM - Aug '15
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I don't know, as I've never needed to rig up a non-OEM ignition switch. It's small enough to fit inside the keyswitch and utilizes the wires going into it, so I'd guess 1W is probably enough, but you're not hurting anything by going bigger.
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September 25th, 2016, 06:58 AM | #9 | |
EX500 full of EX250 parts
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Location: Grand Rapids-ish, MI
Join Date: Jul 2012 Motorcycle(s): '18 Ninja 400 '09 Ninja 500R (selling) '98 VFR800 (project) '85 Vulcan VN700 (sold) Posts: A lot.
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MOTM - Aug '15
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Quote:
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1 out of 1 members found this post helpful. |
September 25th, 2016, 08:36 AM | #10 | |
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Quote:
Thanks!
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January 23rd, 2017, 01:53 PM | #11 |
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Name: Ben
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January 23rd, 2017, 02:12 PM | #12 |
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If someone would measure the voltage across one while in use, you can use the formula:
V² / 100 = watts |
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January 23rd, 2017, 02:31 PM | #13 |
ninjette.org newbie
Name: Ben
Location: Tulsa, Ok
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Thanks. A buddy just bought a theft recovery 08 and is asking for help.
I directed him this way for future help. |
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October 4th, 2018, 04:27 PM | #14 |
gokartmozart
Name: randy
Location: land of corrupt govt-illinois
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kart wiring
still got problems with my engine running full time , sometimes it will run great then it won't ...frustrated , I've been trying to find an aftermarket brainbox , igniter or whatever it's called , to replace the stock unit (realy don't need that PESKY gray wire crap) just started searching forums again for what others are using as a replacement , any help ? OH yes , also built a 250 kart , build is complete , it's ready except for intermittent ignition problems . just a shout out for any help--- thanks
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October 4th, 2018, 07:00 PM | #15 |
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here you go:
https://www.diyautotune.com/shop/meg...d/microsquirt/ http://microsquirt.com/ http://www.msextra.com/forums/ Last futzed with by DannoXYZ; October 4th, 2018 at 08:50 PM. |
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October 6th, 2018, 07:37 AM | #16 |
gokartmozart
Name: randy
Location: land of corrupt govt-illinois
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100 ohm resister
I found the exact resister used on the switch (the color stripes indicate ohms , watts, etc) google "resisters" and all info on how to identify resisters is available....to get to my problem/question I'm trying to get in touch with someone who POSITIVELY KNOWS wiring . A diagram showing the ignition, cranking, charging, and cooling circuits is what will help. All the info I've seen so far looks like hack jobs, or wire colors are not identified very well (as in this thread). sorry if I ruffled your feathers. Again...if you KNOW wiring please post. I have over 45 years welding/metal fabrication experience that I can share if anyone might be interested, built several karts, fabricated and repaired many custom motorcycle parts, not to mention all the race car stuff. sort of like Ducatiman ...got lots of experience doing what I do
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October 6th, 2018, 07:53 AM | #17 |
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Is the first gen 100 ohms? For some reason I think it is 130 in the first gen and 100 on the second. I could be wrong. I will look at the wiring diagrams tonight
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October 6th, 2018, 12:33 PM | #18 | |
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Quote:
There's only TWO types of wires to worry about at ignition-switch. 1. INPUT - brown wire coming in with power from battery 2. OUTPUT - goes to various circuits like horns, lights, etc. ONE of these, is a GREY wire going to the ignition computer The way it works is the ignition computer compares voltage on GREY wire vs. BLACK/YELLOW wire directly connected to battery. If the voltages are the same, the bike's been hot-wired and it will refuse to start. So the resistor's presence is to signal that it's actually ignition switch that turned on bike. You've got intermittent problems, nothing to do with the resistor, that's an all/or nothing, black/white, yes/no binary indicator. Either the bike starts or it won't and the condition will be permanent, not random (resistors don't change resistance day-to-day). You've got loose wiring, shorts, or bad connectors somewhere. Pull out the voltmeter and get voltages at every wire, going into and out of every connector. Also get out hair-dryer and get the ignition computer hot. See if it stumbles then? There's been cases of overheated ones failing. And... check carbs. I had problem where bike would run for 2-3 laps perfectly fine. Then it'd die like it ran out of gas, kaput! Found this little critter in my float bowl! |
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October 7th, 2018, 06:54 AM | #19 |
gokartmozart
Name: randy
Location: land of corrupt govt-illinois
Join Date: Nov 2015 Motorcycle(s): 250 ninja ,it's realy a ninja motor on a scratch built alum chassis (avatar is my old kart) Posts: 22
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100
definitely not carbs, - ultrasonic cleaned 3 times. gray wire is at ign switch (needs to be switched on)? BK/Y on igniter--- OK to frame ground ? where should white and brown on reg/rec be connected? G/BK on igniter, (safety switches) OK to frame ground? BR/BK on igniter, 10A fused from ig sw? not sure if my wiring is causing some sort of interference to make ignition intermittent
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October 7th, 2018, 08:06 AM | #20 |
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I was just looking through the diagrams and service manual. Can someone show me any reference to the resistor.
Anyhow I found a resistor that was removed from a first gen ignition switch. It measures 330 ohms.
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October 7th, 2018, 10:47 AM | #21 | |
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Quote:
I doubt we'd find any official reference to resistor since it's a component INSIDE ignition switch. Similar to finding references to individual odometer gears. Smallest component that'll have a part# is ignition-switch or instrument cluster. Last futzed with by DannoXYZ; October 8th, 2018 at 08:57 PM. |
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October 7th, 2018, 10:48 AM | #22 | |
ninjette.org certified postwhore
Name: AKA JacRyann
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Did you completely disassemble carbs down to bare jets?
Did you poke cooper wire of various gauges through all the holes? Did you floss out all hidden fuel-circuit passages? Did you soda-blast them afterwards to clean out the debris? There are guys who can rebuild engines with their teeth and both hands tied behind their backs who've had to pull carbs 4-5 times and do more thorough "cleaning" before their carbs were back to factory fresh condition. Some threads of interest: https://www.ninjette.org/forums/showthread.php?t=318676 https://www.ninjette.org/forums/showthread.php?t=315193 https://www.ninjette.org/forums/showthread.php?t=316395 https://www.ninjette.org/forums/showthread.php?t=317977 https://www.ninjette.org/forums/showthread.php?t=318271 - don't rule out clogged filters https://www.ninjette.org/forums/showthread.php?t=317810 https://www.ninjette.org/forums/showthread.php?t=280658 https://www.ninjette.org/forums/show....php?p=1041052 - Ultimate solution to your problems. Quote:
Wiring doesn't cause interference, high-voltage does. Is your ignition computer same distance or further away from ignition coils than factory? If not, build Faraday-cage around it to be sure. I've built them around server closets to encapsulating entire buildings to reduce interference. Also rent, buy, steal an oscilloscope. Will solve your problem in 5-minutes. |
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October 7th, 2018, 02:08 PM | #23 |
gokartmozart
Name: randy
Location: land of corrupt govt-illinois
Join Date: Nov 2015 Motorcycle(s): 250 ninja ,it's realy a ninja motor on a scratch built alum chassis (avatar is my old kart) Posts: 22
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Thanks for the links , I'll pull carbs again , didn't floss passages, just blew with compressed air. Maybe try a different cleaner in ultrasonic, been using a product formulated for sonic cleaners , don't remember the name but it has always worked for other small engine carbs. Will take some time to look at all the links , and try all suggestions . thanks for all the help ... still wondering about those wire locations though.
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October 8th, 2018, 09:11 PM | #24 |
ninjette.org certified postwhore
Name: AKA JacRyann
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MOTY - 2018, MOTM - Nov '17
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Don't ground to frame, too unreliable. Wire directly to battery as shown in wiring-diagram. Same with all other wires. Only thing that should be grounded to frame is starter.
Crimp, solder AND heatshrink-wrap your terminals. That's done in military, aerospace and motorsports (F1) for a reason. Last futzed with by DannoXYZ; October 8th, 2018 at 10:21 PM. |
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