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By MarkinAR
I don't have a ton of electrical experience, but I think the basic workings of a regulator/rectifier are pretty straight forward. 3 diodes, so 2 power wires and 3 diode wires. Symptom is relays click on/off, more or less no power, sometimes will work, mostly no electric to switch, can jump solenoid and it runs.
If i understand a reg/rect correctly, i should have constant resistance one way on each power wire. So in a total of 12 ohm tests (3 per power wire, one way positive, one neg so 6 for one wire, 6 for the other), i should have 3 resistances one way on each power wire, am I correct? And they should all be reasonably close in resistance?
If i understand the way the reg/rect works correctly, then I have one bad diode as it doesn't read the same as the other 2 and this would be the cause of my issue?
All testing performed on the reg/rect unplugged on workbench, with a Fluke.
Thoughts?
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By Dimelol
I have a 2003 Kodiak 450 that i purchased a while back with around 300 hours on it. It has never ran right from the beginning. Initially i thought it was just a carburetor issue because it was all clogged up from sitting for months. It has been cleaned, rebuilt, and taken off probably about 10 times troubleshooting this problem. I have quadruple checked everything including float height ect and it is set correctly, the jets are also brand new, needle and seat have been pressure tested as well. So after all of that I am convinced that the carburetor is not the culprit. I have an issue where the idle is very choppy, almost as if it is misfiring with a rich condition on top of that. I can use a brand new plug and run the machine for just a few minutes and it will be a dry and and coated in black carbon build up. The exhaust also has a strong smell at idle. I had trouble restarting it when hot for a while, but i adjusted the valves and it seemed to solve that issue. They were both way out of tolerance (tight). The weird thing is, outside of idle it seems to run pretty well.
So with all that being said I have ruled out the carb/valves/compression and moved on to the ignition and this is where i have a few questions about factory specifications. I guess the main question I have is, how strict are these tolerances? And could them being off by this amount cause the issue I am having? Do all three of these parts really need to be replaced? I would like to know before I spend the money on these new parts, and it not fix my problem. Below I will list what the specs were in the service manual along with the reading i got. This is my first experience testing ignition components. I just found it odd that all 3 are out of spec according to the service manual.
Spark plug cap resistance: 10 kΩ at 20 °C (68 °F)
My Reading: 8.90 kΩ
Primary coil resistance: 0.18 ~ 0.28 Ω at 20 °C (68 °F)
My Reading: Fluctuated between 0.4 - 0.5 Ω
Secondary coil resistance: 6.32 ~ 9.48 kΩ at 20 °C (68 °F)
Reading was within the specified range.
Pickup coil resistance: 459 ~ 561 Ω at 20 °C (68 °F)
Reading was within specified range.
Rotor rotation direction sensing coil resistance: 0.085 ~ 0.105 Ω at 20 °C (68 °F)
My reading was 0.3 Ω
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By RCNY1
Seems impossible to find a pair of front shocks for my 02 Yamaha Kodiak,newer or older listings are they the same as a big bear ? Factory are $245 each !!! Any help appreciated
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By Sonders
Hey guys. New guy here with my first Yamaha quad. Traded for an 01' Kodiak 400 that needs some tlc. It was running but idle is off, missing some hardware here and there, none of the lights work on instrument panel and front brakes didn't work were the main things that jumped out at me. I drug it home and have started tearing into it. Started with fresh oil change and flushed the dirty brown coolant and replaced with fresh coolant. The carburetor is missing the side cover for the throttle cable and I don't see where I can buy just that cover without buying a complete carb, so went ahead and ordered a new one (hasn't arrived yet). the Starter relay solenoid was crap and had to mess with it to get it to start half the time so replaced it. I have a few questions as I'm going through this quad that I'll list below.
1. It has a cut plug on wiring harness under the instrument panel. Can anyone tell me what this plug goes to? There currently is not a plug running to the 4wd indicator light on instrument cluster so I'm wondering if 2 of the wires are for that possibly??
2. Also in the front, there is a air duct under the rack and black plastic panel that runs down to the engine case. Is there supposed to be some sort of cover or anything over it? I looked online at parts diagrams and couldn't even find this duct or the duct that runs up by taillight in any of the diagrams.
3. this fuel line on top left side of carburetor; is this what goes to the gas tank cap or is it just a vent line for carb? Follow up question, where does the line that comes off of the gas tank cap go to?
I'm sure I'll have many more questions as I work through this thing. Thanks in advance for any replies.
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By Richard Fernandez
Just bought Kawasaki Prairie 650 vtwin 2002 and replaced old carb with new, but the bolts to hold down the air housing are missing. Anyone have any idea what size they are? I apologize for not being very mechanically inclined. Any help would be much appreciated.
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By Jquest
I just picked up a raptor and the plastics are all faded. I would like to repaint them but not sure where to start. What are the steps to paint my plastics? I want to make sure the paint will not damage especially if I spill gas on it. Thanks I’m advance!
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By New2quad
I cant find replacement plastics for a yamoto 70cc quad... i have searched high and low. I appreciate and help. Thanks!
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By serious3
my big bear 400 has lived all its life outside in horrible weather, the plastics are in good shape but very faded scruffy looking, is there anything i can put on them or use to restore them to their former glory?
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By bumpercarkid
Do you think it's worth taking off the plastic and to get new? The back plastic has one small chip and the front has a crack. But do you think I should take it off and get the new remade stuff?
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