valve adjustment help needed - ArcticChat.com - Arctic Cat Forum

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post #1 of 5 Old 06-12-2010, 11:57 AM Thread Starter
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Hello all!
I have an 651 H1 that Im having trouble setting the back lash on the valves... When I set the piston to TDC, the valves were very tight. I adjusted them to spec.(exhaust .006 intake.004). Now they are making tons of noise... Any ideas????
THANKS IN ADVANCE!!!!!
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post #2 of 5 Old 06-12-2010, 01:43 PM
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you set them on the wrong stroke. you can be tdc and be on the wrong stroke. my guess is they are loose now and you need to reset them. on a four stroke you can be tdc on two different strokes.
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post #3 of 5 Old 06-12-2010, 10:04 PM Thread Starter
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I thought I might have done that too... On one stroke, the springs were compressed and on the other stroke, they were depressed with a 1/4 in. gap... I adjusted on the compressed side. Was that wrong?
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post #4 of 5 Old 06-13-2010, 01:23 PM
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Sled: 2011 Pro RMK and 2009 M8
10-11 Mileage:
09-10 Mileage: 700
08-09 Mileage: 500
07-08 Mileage: 250
ATV: 2008 650H1 and 2008700 H1 SE
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2008 Mileage: 350
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Sounds like you did it on the the stoke. Did you have the timing plug out and have the timing mark line up? Durring the compression stroke all the valves should be closed.

--------------2008 700H1 SE (Wifes Ride)---------------------------------------------------------------------------------------------------
27" Executioners--Front and Rear AC bumpers--RTR 1.5" flex lift--Sanny steerlites and shock bushings

--------------2008 T-Cat------------------------------------------------------------------------------------------------------------------
30" Silverbacks on 14" ITP SS212--3.6 diffs--welded sld--front and rear bumpers--RTR 2" flex lift--Sanny steerlites and shock bushings

-------------2009 M8--------------------------------------------------------------------------------------------------------------------------
2" bar riser--SLP pipe kit--SLP 40/36 Helix--2010 Seat--AC diamond Plate Flyscreen--AC Ice scratchers--De-decaled

-----------2011 Polaris Pro RMK-----------------------------------------------------------------------------------------------------------------V-Force Reeds--Super Q can

-----------2013 Polaris Pro RMK-----------------------------------------------------------------------------------------------------------------
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____
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2006 650 V-twin
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post #5 of 5 Old 06-13-2010, 08:59 PM Thread Starter
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I got it. Thanks! I was 180 off. Runs a lot better now but it still is using oil. Plenty of power but using way to much oil for 180 hrs.
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