All posts by dstech

2001 trx350tm no spark

I have a 2001 trx350tm that I bought from a buddy, it doesn’t have spark. So far I’ve had to jump the neutral safety switch to ground so I could motor it over with the starter. I have all the plastics off the ATV; I’ve checked all the wires for continuity using a schematic I don’t have a peak voltage tester like the service manual calls for. I’ve checked all the CDI wires off the CDI and connected to the CDI with the key on. This is what I’ve gotten:
Plug disconnected from CDI
Bl/G (IGNITION FUSE) 12V. when connected to CDI 12v
LIGHT BLUE (THERMOSTAT) .31V. when connected to CDI 4.53v
Bl/Y (COIL POSITIVE) 0V. when connected to CDI 4.82v
Blue/Yellow (trigger) .72 v .320 OHMS. when connected to CDI .6v (when turning over)
G/W (ground) continuity good to negative on battery
Blue/R (oil light) 12v .87 when light is on 12v when light goes out
Bl/W (bat3) 12v. when connected to CDI 12v
Light Green/ R (ground for neutral) I physically grounded this wire to battery ground on frame. (the neutral safety switch is not working)
The coil is .4 OHMS testing positive to negative and 8500 ohms from negative to lug wire
The stator has .5 OHMS between all of the yellow wires and no continuity to ground but I can’t get any voltage measurement. (I checked by placing the negative on the multimeter to battery ground and checking each yellow wire while motoring). Am I supposed to be getting something out of the stator? Where do I take the reading? The service manual doesn’t show you. The stator doesn’t look burn or damaged the magnet for the trigger is still on the outside of the flywheel.
The R/R has also tested good all the diodes were around the same number placing positive on negative and vice versa.

87 350 TRX regulator/recifier or stator problem?

I have an electrical issue on my 87 350 TRX. The battery doesn’t recharge after use and it will die after a full day of riding. The battery tests at 12.5V and drops to 10.5-11V after starting and at idle. It doesn’t increase when revved. The person who sold it to me ran it without a battery in it, but he did use a portable jumper to start it and left it connected while running.

I just ordered a new rectifier/regulator, but could it be the stator? This will be the 3rd regulator/recifier I’ve replaced and it hasn’t fixed the problem, but the others were used and I can’t be sure if they were good. I have no idea how to test either, so info on that would be great.

I’ve read how to test and change a fuel pump on here and you guys helped me isolate a fuel issue to the fuel pump cutoff switch. I appreciate any advise you guys offer!

Thanks for all you help.

cracked final drive housing ??

Changing bearings in the final drive on my 300trx 2wd and noticed a hairline crack when I went to put the new needle bearing in for the pinion. Crack is right down the middle beween the hole where the c clip is to where the pinion goes into the bearing. Question is, will the hairline crack be a major issue or just keep going? A new housing is 150 and I have a lot more to buy to get it going so anywhere I can save a dollar is great

Ignition issues

Here’s my issue. My 2008 500 EFI sportsman is in great condition. Only 1500 miles. Was running it off and on the other day and it was running fine. Out of the blue, when I turn the key, solenoid clicks and my speedometer screen lights up fine…Turn it to start and there is nothing. I’ve got power. Acts like it’s not in neutral or I don’t have the brake lever pulled. Could this be a simple fuse issue.

R.p.m

I have a 2013 xmr 1000. It feels like when i am on forest service roads cruising that my rpm`s are to high. I would like to know what kind of rpm you all are running at at 30mph and 50mph. Thank you!

Winch instalion , How to page

Was looking around the forum for a step by step how to install a winch.. Couldn’t find much. So I winged it and installed a Badlands 3500# winch today..Pretty easy install. It works and nothing started smoking yet..Lol.. But was wondering how an installation section would be on this forum.. I am really not great at taking videos narrating . But I’m sure there is a lot of guys on this forum that cold do it.
Any way here are my pics.. 05 Polaris Sportsman 800.. Should i cut the panel for winch access or just leave it off.. I installed the cord remote access in rear trunk in case S$%t got real deep..
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2012 ranger 400

went on a trip and now it starts right up cold but as soon as it gets warm it wants to act like its flooded out and when it cranks you have to keep patting the gas till it clears out and then runs great till you shut it off again or wait till its cold,any help would be appreciated