Valve Adjustment? - Polaris Riders
 
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post #1 of 10 (permalink) Old 05-05-2003, 05:23 PM Thread Starter
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Valve Adjustment?

Does the Pred require this? I haven't dealt with ATVs a WHOLE lot (much less four stroke ATVs) and I keep hearing about this. I don't remember seeing this in my owners manual!?

David De Anda
SE-Rious Performance Racing
Phoenix, AZ
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post #2 of 10 (permalink) Old 05-05-2003, 10:49 PM
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I've heard that you do not have to have them adjusted, like the hondas. If anyone else has heard differently, please let me know.

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post #3 of 10 (permalink) Old 05-06-2003, 03:08 PM Thread Starter
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That's sweet! Anyone else heard different?

David De Anda
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post #4 of 10 (permalink) Old 05-06-2003, 05:39 PM
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The clearence should still be checked periodically, it's much more labor intensive to make adjustments. The shims are between the valve stem and the cam followers (buckets) hence the cams will need to be removed to change shims.

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post #5 of 10 (permalink) Old 05-07-2003, 02:24 AM
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I have over 60 hours on my machine... I know it's still running good based on running a Predator equipped identically to mine, except he had the Air Force box and I didn't. And we TIED.

So I wonder how often I should check the clearances?

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post #6 of 10 (permalink) Old 05-07-2003, 03:54 PM
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Was at the Dealer yesterday and took my preddy in for its 6 month service while still under factory warrenty.

Service manager claims valve adjust is done at the 1 year service mark.

Heapster

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post #7 of 10 (permalink) Old 05-07-2003, 07:35 PM
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I cant find anything in the Service manual that stats a time period for checking the valves.....
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post #8 of 10 (permalink) Old 05-07-2003, 08:19 PM
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They haven't figured that out yet, seasonal get's my vote....

The Toy Box; -
85 ATC250R -
87 TRX350RPV -
88 TRX250R -
01 TRX400EX -
95 Scrambler 400 -
03 TLD Predator -
04 Predator Dale Earhardt Jr.LE-
05 Sportsman 800EFI-
05 Predator LE-
06 Hawkeye 4x4-
06 Raptor 700 50th Anniversary edition-
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post #9 of 10 (permalink) Old 06-07-2003, 06:26 PM
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MY BIKE WAS WORKING GOOD BUT IT DID NOT REV QUICK AND SOMETIME DIDN'T PULL HARD.
WITH OUT ANYTHING TO COMPARE IT TOO. I ADJUSTED MY OWN VALVES OVER 6HRS OF PLAYING WITH LASH CAP AND CAM TIMING TO GET.007'' ON THE INTAKE AND .011'' ON THE EXHAUST THE BIKE PULLS LIKE MAD AND REV'S QUICKER. A NIGHT AND DAY DIFFERENTS. ONE OF MY VALVES WAS AT LESS AN .003'' THIS IS THE MUST IMPORTANT ADJUSTMENT TO AN ENGINE AS I REBIULD ENGINES AT A HEAVY DUTY DIESEL SHOP. THE IMPORTANT THING IS TO GET SOMEONE THAT WILL SPENT THE TIME DOING THIS JOB, AND NOT JUST SAID GO ENOUGH.

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post #10 of 10 (permalink) Old 06-13-2003, 05:03 PM
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I had my tank off last night at work and decided to check the clearence. I have well over a hundred hours on it and the clearances were at .011 and .006. I never beat on my machine but it was run hard. I would say that unless your comfortable with doing it or your pred is running bad, I would leave them alone.

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