Polaris Scrambler 500 engine dies at 3/4 throttle! Find out why! How to replace a timing chain.
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- čas přidán 24. 02. 2021
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I'll show you what to look for and diagnose your Polaris Sportsman or Scrambler 500 and replace a timing chain. - Jak na to + styl
All good info- I made sure I went back and checked all that info in this video just to make sure I went through everything. Im still working on my project but so far so good. Thanks for all the great videos.
Thanks. With these 4 strokes, Timing is everything. Glad to help. Good luck with your project.
@@TitaniummanGarage 1998 sportsman 500 4x4 coming along good its all about waiting on parts - but while waiting I picked up a 2000 Suzuki Quadrunner with 867 miles - barn Find in great shape and with that came a Kawaski Mule 1000 package deal - only issue with mule was a broken holder needle for main jet in one carb and broken Main jet - waiting on parts other then that the thing has not seen alot of time running it has been sitting in the barn for years. Should be fun going through it all and just getting everything back to spec. your videos help alot so thanks.
@@G3MsFixIt Sweet deal. Mules are fun to ride.
@@TitaniummanGarage I commented on your most recent video about corroaded wires but I guess you didnt like it - and removed it so Its all good - keep making videos and Ill keep watching.
@@G3MsFixIt Thanks for letting me know. No I didn't see it. I have noticed some of my comments getting deleted from other people asking questions too. What was your comment?
After a very recent motor swap and having to deal with a camshaft and timing chain in my beloved's 95 425 magnum I have gained a bit of insight on these motors.
One very minor issue I have with your otherwise highly informative video, is I dont think shearing the flywheel key for what ever reason would cause the timing chain to jump since the crank timing gear has it's own woodruff key and that gear is retained by the nut on the shaft behind the stator cover. The flywheel and it's key is retained by a second nut outside the flywheel.
You are correct that shearing the flywheel key will toss the ignition timing out the window. Had this happen on a 50hp boat motor once, THAT was an adventure!
The silver links will go out of synch with the marks on the cam gear after so many revolutions and then line up again and then go out again and so on, all while the crank/valve timing stays correct.
I now have a 425 motor on the floor of my shop I will likely rebuild or even upgrade to a 500 per your other video to have as a spare since I have two 425 magnums and would not mind having one ready to go when needed.
Your correct. If I implied that the timing chain jumped..I didn't get my message across correctly. I was telling the viewer to watch the flywheel and if the key sheared off it would throw the timing off. Not the chain. Good luck with the conversion. Its pretty strait forward like a 425 with a little more power.
@@TitaniummanGarage could you please help my polaris?. PLEASE.
@@kartrfolife what do you have going on?
I got a 2006 scrambler and after I take it out of 4x4 it seems like it's in a low gear (doesn't rev as high) only way iv got it to fix itself was to put it into N and back into 4x4 and then back into 2x4 and that only works sometimes... any ideas what it could be??
Im having a weird problem. Its an 03 500 h.o. idles perfect starts good. But it has a lack of power and hesitates to redline in neutral. I pushed down on the air box which made it run better. Replaced the seal with a used one and put silicone on the snorkel seal to seal it. Helped a little bit. Checked the cam exhaust lobe looks to be the same hieght as the intake lobes. Adjusted the valves too. Put a new carb kit in changed the fuel pump, (pumps better now) put the diaprham needle to middle position and guessed the fuel air setting. Because i forgot to check how many turns out. I notoced i have an exhaust leak at the manifold wbat would you advise i put my focus on to. I plan on replacing the exhaust gaskets.
Sounds like its sucking in air somewhere and running lean. Check air lines to see if they are pinched or bad. Check fuel lines too. They collapse if they are old. 2 and a half turns out on the carb for the setting.
Kind of unrelated question here - do you know if the 500 motors are identical in size and shape as the 425 motors? I’m looking into putting a 500 motor into my 425 magnum since they’re easier to find motors for. Mine keeps skipping timing and destroying valves, and yes I’ve done the chain, valves, and the sprockets are good and tight. Double and triple checked timing.. kind of at a loss so I was wondering about 500 into a 425 swaps.
czcams.com/video/_3_MCGyRsdo/video.html. You bet it does.
Do you have a number I could send you a video of mine running and see what you think is going on
facebook.com/Titaniummangarage.
I have a sportsman 500 and at about 3/4 throttle it sputters.
Try the basics first. Needle and seat in carb. Might be getting too much gas.
@@TitaniummanGarage thank you! I’ll make sure to check that out!
LOL, you see black smoke, so that tells ya the timing is the problem?? Hilarious I'm surprised you have anything that works. Ahhh NO, black smoke is rich, either carb or coil ain't putting out at higher rpm's.
Ok. So why was the problem solved when I adjusted the valves?
Hey ItBseCrioN8, don't be a know-it-all. He fixed it. He had black smoke because fuel was pushing backwards. He was smart enough to figure that out.