number1kyster
TY 4 Stroke God
My father has a 2007 Attak GT with 18,000 miles. We are having some issues with it. It will not idle, it sounds like it is running on 3 cylinders, burns 30% more fuel than normal, and it struggles to pull above 9,000 rpm. Any ideas? Im wondering if the timing skipped a tooth. Maybe its something electrical? Anyone elses machine display these symptoms?
Check the plugs and the coils.
number1kyster
TY 4 Stroke God
Changed the plugs today. No difference. The plugs were a nice golden brown. Sled is at the dealer now. I'm guessing something electrical.
is it louder.....like bad exhaust leak?
APEX 06
TY 4 Stroke God
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- Snowmobile
- 09 Nytro XTX, 08 Apex Mtx
sleddog66 said:
X2 donuts
If it backfires when letting off the throttle then yes it would be the donuts. He didn't mention any backfiring issues tho
race24x
TY 4 Stroke Master
18000 miles my buddy had a similar problem at 16000 plus would stall at idle, turned out broken valve springs weak valve springs and valve issues. Please let us know what you find
number1kyster
TY 4 Stroke God
Donuts are brand new and not leaking.
number1kyster
TY 4 Stroke God
Dealer called. They tested the coils and they were all fine. They did a leak down test and here were the results:
From left to right if you are sitting on the sled:
8%
10%
30%
100%
They are going to take off a valve cover tomorrow and investigate. Turns out these motors aren't bullet proof. This Apex has been maintained and ridden by the book with 0 modifications!
From left to right if you are sitting on the sled:
8%
10%
30%
100%
They are going to take off a valve cover tomorrow and investigate. Turns out these motors aren't bullet proof. This Apex has been maintained and ridden by the book with 0 modifications!
biffdotorg
VIP Member
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Please report back what you find. Very interested.
hman
Newbie
- Joined
- Oct 31, 2006
- Messages
- 3
18,ooo miles and no problems till now, i would consider that bulletproof.
CaptCaper
TY 4 Stroke God
- Joined
- Jan 1, 2007
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- Northern N.H.
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- 2016 RS Vector XTX 1.25 Lug wifes..2013 RS Vector LTX.. 2003 600 VMax Past Machines 3-2007 Attaks 1-2010 Vector LTX.. sorry no Stinkdoos or poo's cats.
10000 RPM for a 4 stroke is demanding task. Given the conditions it is exposed to between weight,cold and you name it.
number1kyster
TY 4 Stroke God
Other than exhaust donuts and suspension parts it has been flawless. He was talking about bringing it in for the 25,000 mile valve adjustment but sounds like that can be done now.
When i had my R-1 streetbike i would twist that throttle all the time ! It would see 15,000rpm quite a bit.sold it with 18000mi no issues ran great ! now my R-6 i do the same but revs way higher ! i cant believe it would be the valve train on the apex,(maybe some 
)or at some point the boots were not sealing proper? syht happens ... let us know
)or at some point the boots were not sealing proper? syht happens ... let us know
number1kyster
TY 4 Stroke God
Like I said, this sled has been 100% stock it's whole life and maintained by the book. It never even gets held WOT for very long.