2007 Apex won't start cold. ( -20 C -5 F)

[CaptCaper]

I've been starting my 07 Attaks in 14 below this last weeks. I have a 20 series battery. I also hold the starter engaged via key until it starts and holds running. If you release then try again it may flood it. Also I found by changing the adjustments from 0 to - or plus 15 on the fuel injectors settings made a difference.
I always have sprayed all contacts and connections with WD 40 on all my machines,outboards,cars,trucks,etc. Keeps them A1 and Never had an issue over the years since 1980's when WD came out.

 

[Rich Kay]

I've been starting my 07 Attaks in 14 below this last weeks. I have a 20 series battery. I also hold the starter engaged via key until it starts and holds running. If you release then try again it may flood it. Also I found by changing the adjustments from 0 to - or plus 15 on the fuel injectors settings made a difference.
I always have sprayed all contacts and connections with WD 40 on all my machines,outboards,cars,trucks,etc. Keeps them A1 and Never had an issue over the years since 1980's when WD came out.

I know the adjustment your talking about but cant figure out what you mean....From 0 to - or plus 15 ??? doent make sense....

 

[Stubbs]

My 06 was harder to start in the cold with 10 series plugs. My 11 is even worse with the stock 9’s in it.

 

[maim]

best things i have found for cold starting without block heater, 1st 0w40 synthetic yamalube or equivilent for faster cranking speed. 2nd make sure you have over 1/2 tank fuel as the added weight of fuel seems to help pressureise the injectors for a better start. 3rd thing is to pull the side panel and rotate the clutch counterclockwise at least 2 full revolutions to remove frost from the cylinders so that the engine spins over faster and also is easyer on the starter. 4th is some kind of boost pack to help it crank longer/better.

i have used all of these to help get sleds running at -40 but i acknowlege that i am getting lazy and am usually stopped where there is a generator or hydro so i installed a block heater to make my life easy.

 

[YukonMP]

Never heard of turning it over by hand but I like it. Thanks to you guys I look like a freaking genius out there.

 

[Darren Betker]

Have a question for all you guys... how many are running the 10's instead of the 9's for spark plugs? Just wondering.

What do sparkplugs have to do with cold starting?

 

[Darren Betker]

I've been starting my 07 Attaks in 14 below this last weeks. I have a 20 series battery. I also hold the starter engaged via key until it starts and holds running. If you release then try again it may flood it. Also I found by changing the adjustments from 0 to - or plus 15 on the fuel injectors settings made a difference.
I always have sprayed all contacts and connections with WD 40 on all my machines,outboards,cars,trucks,etc. Keeps them A1 and Never had an issue over the years since 1980's when WD came out.

Only problem with wd40 is that it evaporates and needs constant reapplying

 

[Stubbs]

What do sparkplugs have to do with cold starting?

Spark plugs have #’s for a reason, they indicate heat range. The higher the # is, the “cooler” the spark from the plug is. If you have a motor that isn’t a particularly good cold starter, using a spark plug with a cooler heat range # certainly isn’t going to help the situation.

 

[CaptCaper]

Only problem with wd40 is that it evaporates and needs constant reapplying

And I do re apply... buy it in gallons and also large spray cans with the fine long nozzle... it's last's long enough thou to keep things going.

 

[ZapeX2]

Just throwing this out there, but when it's extreme cold why not a very, very, I mean a very small amount of ether. I've never tried it on my sled but if you were careful with the dosage, should help. I know, I know.... KaBOOM.... but IF... you were careful... maybe?

 

[trailanimal]

I believe ether washes away oil making it hard on the engine at start.

 

[thor452]

I have tried this to no avail.

Sent from my Moto Z2 Play using Tapatalk

 

[terez]

Simple. Turn the key on an off 4 times to cycle the fuel pump. Start the engine with the throttle cracked slightly open, and keep the key in the start position until it catches. DO NOT let the key off until its running.

This when its really cold.

I also went to a bigger battery and an AGM battery.
I went up to a 310cca series 20 agm.
It fits in the battery box with the foam removed.

Sled rolls over much faster regardless of temp and has the balls to do the job when really cold.

There are 2 probs when starting 4strk sleds in severe cold.
1. They don't roll over fast enough.
2. They flood easily as the ecu throws major fuel sensing the ambient temp and the slow roll over doesn't allow the engine to catch either soon enough or at all.

Result is flooded motor.

The fuel system gets primed when the key is turned BEFORE rolling over the starter. Its that lil cycle you hear when turning the key on.
If you try rolling the motor over before the cycle is done there may not be enuf fuel to catch....
You should always let the cycle complete before rolling over the motor...even when its not crazy cold. But if you don't do it when really cold you are asking for flooding.
When its really cold turn the key on/off a few times BEFORE rolling the sled over...insures the injectors are primed and get a good initial squirt.
The other trick is to keep the starter rolling when the motor is struggling to start....helps it catch as well as provides a bit of air along with the super rich fuel that's being introduced.
The trick of slightly opening the flipper while rolling over also helps to provide some air while the sled is having the super rich fuel introduced and rolling over slowly.

You wont hurt the starter or motor by leaving the starter rolling a lil longer till the motor fully catches....and make sure to leave it rolling till the motor fully catches...not just coughs...
When its really cold you only have a couple tries before it will flood.....then grief.

Cycle the key on/off a few times.....roll the sled over until the motor catches...if it isn't catching DONT let off the starter...keep it rolling and open the throttle a bit and keep it rolling till it starts.
This will usually always do the trick IF you have a strong battery.

And NEVER shut the sled off ntil it fully warms up...especially when its really cold...you run a high risk of fouling a plug(s)

 

[Rich Kay]

Spark plugs have #’s for a reason, they indicate heat range. The higher the # is, the “cooler” the spark from the plug is. If you have a motor that isn’t a particularly good cold starter, using a spark plug with a cooler heat range # certainly isn’t going to help the situation.

thanks for the explanation....

 

[CaptCaper]

This when its really cold.

I also went to a bigger battery and an AGM battery.
I went up to a 310cca series 20 agm.
It fits in the battery box with the foam removed.

Sled rolls over much faster regardless of temp and has the balls to do the job when really cold.

There are 2 probs when starting 4strk sleds in severe cold.
1. They don't roll over fast enough.
2. They flood easily as the ecu throws major fuel sensing the ambient temp and the slow roll over doesn't allow the engine to catch either soon enough or at all.

Result is flooded motor.

The fuel system gets primed when the key is turned BEFORE rolling over the starter. Its that lil cycle you hear when turning the key on.
If you try rolling the motor over before the cycle is done there may not be enuf fuel to catch....
You should always let the cycle complete before rolling over the motor...even when its not crazy cold. But if you don't do it when really cold you are asking for flooding.
When its really cold turn the key on/off a few times BEFORE rolling the sled over...insures the injectors are primed and get a good initial squirt.
The other trick is to keep the starter rolling when the motor is struggling to start....helps it catch as well as provides a bit of air along with the super rich fuel that's being introduced.
The trick of slightly opening the flipper while rolling over also helps to provide some air while the sled is having the super rich fuel introduced and rolling over slowly.

You wont hurt the starter or motor by leaving the starter rolling a lil longer till the motor fully catches....and make sure to leave it rolling till the motor fully catches...not just coughs...
When its really cold you only have a couple tries before it will flood.....then grief.

Cycle the key on/off a few times.....roll the sled over until the motor catches...if it isn't catching DONT let off the starter...keep it rolling and open the throttle a bit and keep it rolling till it starts.
This will usually always do the trick IF you have a strong battery.

And NEVER shut the sled off ntil it fully warms up...especially when its really cold...you run a high risk of fouling a plug(s)

This says it all....good stuff ..and it's what I have done..learned by ones here back 10 yrs ago..