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sandybottoms
MMT Member
Joined: Thu Oct 29, 2015 6:38 am
Posts: 34
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 13hp Beavertail hop-up kit Well yesterday was entertaining to say the least..
I ordered the gx390 stage 1 hop up kit from NR Racing (hd valve springs, bigger jet, intake, choke holder, and timing key).
I also ordered the loop header with a muffler.
Long story short after working on it for a couple hours we ended up with a flooded out motor backfiring out of the intake.. (Face palm)..
Upon further inspection and a 12 pack, we tore the head back down and one of the push rods was bent, guessing that the valve springs might have got torqued too tight or something. We torqued everything to spec but it was an old wrench.
New parts coming Monday will post updates when I get it running or if anyone that wants to see how it turned out.
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| Sat Feb 13, 2016 11:01 am |
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SETx Longtail
MMT 1000 Club
Joined: Sun Sep 01, 2013 2:53 pm
Posts: 3480
Location: Hardin County, Tx
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Re: 13hp Beavertail hop-up kit Please explain the procedure for torquing a valve spring....
_________________
#CFFITR
-Custom pool noodle
-stage 4 water wings
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| Sat Feb 13, 2016 3:46 pm |
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sandybottoms
MMT Member
Joined: Thu Oct 29, 2015 6:38 am
Posts: 34
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Re: 13hp Beavertail hop-up kit Pardon my wordage.. The nut that's on the back of the valve springs might have been too tight..
That explain it for you?
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| Sat Feb 13, 2016 11:26 pm |
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krazo
MMT Addict
Joined: Thu Sep 06, 2012 8:44 pm
Posts: 667
Location: SE Bama
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Re: 13hp Beavertail hop-up kit
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1754 prodigy- stage 2 GTR
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| Sun Feb 14, 2016 1:22 am |
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SETx Longtail
MMT 1000 Club
Joined: Sun Sep 01, 2013 2:53 pm
Posts: 3480
Location: Hardin County, Tx
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Re: 13hp Beavertail hop-up kit
_________________
#CFFITR
-Custom pool noodle
-stage 4 water wings
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| Sun Feb 14, 2016 7:32 am |
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sandybottoms
MMT Member
Joined: Thu Oct 29, 2015 6:38 am
Posts: 34
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Re: 13hp Beavertail hop-up kit Valve.png
Part #5 is what I'm talking about.. And yes my engine talk is terrible, I can tear stuff apart and most times get it back together but that's about it.
Edit- pic is pixelated pretty bad its the 2nd piece from the far left of pic
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| Sun Feb 14, 2016 10:32 am |
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sandybottoms
MMT Member
Joined: Thu Oct 29, 2015 6:38 am
Posts: 34
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Re: 13hp Beavertail hop-up kit SeTx, any tips, tricks, or shit to check is appreciated.. I'm picking up a new set of rods in the morning..
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| Sun Feb 14, 2016 11:23 am |
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sandybottoms
MMT Member
Joined: Thu Oct 29, 2015 6:38 am
Posts: 34
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Re: 13hp Beavertail hop-up kit Rods and the rockers were toast, got that lined out and got it running, gotta wait for better weather to water test it, we shall see..
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| Mon Feb 15, 2016 3:43 pm |
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sandybottoms
MMT Member
Joined: Thu Oct 29, 2015 6:38 am
Posts: 34
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Re: 13hp Beavertail hop-up kit IMG_20160215_120309354.jpg
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| Mon Feb 15, 2016 3:46 pm |
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