New trick to starting a heat soaked turbo, w/o temp switch

[WyoBoy1000]

I don't know if it works or not but it seemed to.

When they get heat soaked the ecu cuts fuel and can make it impossible to start until the temp drops.

Have someone blow/ or pressurize the barometer tube, and try starting it. The increased pressure will trick the ecu and increase the fuel and start the engine.

Did it on one and it started 3rd pull, But its hard to say if it was because of the trick or it just decided to start. So if you have it happen give it a try and let us know.

 

[backcountryislife]

I'll being my fluffer along when I go sledding from now on!!!

 

[MAINJET]

Can you post a pic of you blowing on the hose??? Just want to make sure I do it right...

 

[WyoBoy1000]

Can you post a pic of you blowing on the hose??? Just want to make sure I do it right...

Thats why you have a buddy do it while you start it, or hold the camera.

 

[ACMtnCat]

You can also just unplug the air sensor (blue/white plug at the ECU) then start it, shut it off then plug it back in and start it again. Your back in action!

 

[M.M. 700]

HAHA having to blow your sled to get it to start.

 

[clutch]

Blow on it honey, it's vapor locked!

 

[WyoBoy1000]

Blow on it honey, it's vapor locked!

Sounds like a threesome

 

[backcountryislife]

hey, got a serious question though,

This year, our cutler has been bogging here & there (seems like after a very quick stab right after we start it), and if I flip the switch, it goes right back to running fine, I hit the gas, then flip it back to normal. What does that do, and how would I imitate that on the attitude box?

Pretty sure I added some red fuel last year when we started running it to 15psi, perhaps pulling that back would take care of it? Then just turn it up a bit when we want to run that much boost maybe? That was the only tuning I've ever done on the thing, and JUST now it crossed my mind that we never had that little bog before I messed with the box.

Thanks

 

[ACMtnCat]

I think when you flip the switch it is leaning it all the way out. I'm not 100% sure about that, but I think thats what it does.? I would pull that red back to the original position and see if that is what it is. Also, how old are the plugs? If they are from last year, I'd throw some new ones in and make sure the gap is adjusted to .025".

 

[JHG]

I think when you flip the switch it is leaning it all the way out. I'm not 100% sure about that, but I think thats what it does.?

I'm 95% sure that it's the opposite of this. When the temp switch is disconnected, it adds a ton of fuel. It will work like a choke on a cold morning. When one of my my stator coils was getting weak last year, the only way I could start the sled was to add fuel with the switch and then start it like it was flooded. Once it was running then the stator output was high enough to keep it running. Every time I have hit the switch while riding, it bogs.

When the temp switch activates on a heat soak, it tells the ECU to withhold fuel so the sled won't start till it cools. When you disconnect the switch, it does the opposite and over-fuels the sled.

Like I said, I have a 5% chance that this is completely wrong. I just know the sled acts flooded when I throw the switch before I start it.

 

[hatchers]

yes, the temp switch thing works just like a choke

ive had my hands on couple different turbo Ms..and they all seem to act a bit different in regard to a "hot start"

for some reason i have not ran into this issue yet this year

but in the past i did find one step by step operation that worked every single time (for me, and i know its worked for others)

1- kill switch on, sled wont start
2- pull rope 3 times with flipper hammered down
3- kill siwtch off, sled will start
4- pull rope with flipper down
5- this has worked 100% of the time for me...i do know this did not work on freaks sled, not sure why

 

[Dr. Shokula]

The switch defaults the ECU to full fuel start. Easy to make it too! $10 bucks for a really nice toggle switch from the autoparts store and a foot of wire. Works great. And no offense but it beats the hassle of blowing into your barometer hose. If I saw two guys at the bottom of a hill with one guy pulling it over and another blowing into a hose Id probably fall off the sled laughing. Turbo cats run awesome when done right IMO, blowing into your sled to start it just gives those those DOO and POO guys something to pick at. hahaha. Good idea to get ya out of a jam, but probably not the "fix" everyone wants. Gotta love Boost !!!!

 

[WyoBoy1000]

Agreed! This is just if your in a jam and havent done the heat switch yet, mine has a switch.

Hatch, the way you are starting it sounds like a flooded issue, with the sled in the not run position and flipper open it cuts the fuel and clears the cylinders of exes fuel, then the full throttle pull gets it going. Seems like just the opposite to the heat soak.

 

[Tree Boss]

Agreed! This is just if your in a jam and havent done the heat switch yet, mine has a switch.

Hatch, the way you are starting it sounds like a flooded issue, with the sled in the not run position and flipper open it cuts the fuel and clears the cylinders of exes fuel, then the full throttle pull gets it going. Seems like just the opposite to the heat soak.

The switch that's on the sled is for the not starting problem, switch it off and pull the rope 3 times and then turn it back on and it should start up.

Chad never had to use the switch and neither did I, I'm surprised to hear that it's getting heat soaked but just so you know I think that's what the switch on the sled is for.

 

[hatchers]

Hatch, the way you are starting it sounds like a flooded issue, with the sled in the not run position and flipper open it cuts the fuel and clears the cylinders of exes fuel, then the full throttle pull gets it going. Seems like just the opposite to the heat soak.

it does act 100% like a flooding issue and i totally understand what you're saying, and i said "hot start" not "heat soak"...two different things

what im doing was a hot topic last year and in several threads, a few peolpe tried it and it works, but not for everyone

 

[WyoBoy1000]

The switch that's on the sled is for the not starting problem, switch it off and pull the rope 3 times and then turn it back on and it should start up.

Chad never had to use the switch and neither did I, I'm surprised to hear that it's getting heat soaked but just so you know I think that's what the switch on the sled is for.

I used it once and worked just like described there was another sled without the switch that had the heat soaked problem.

it does act 100% like a flooding issue and i totally understand what you're saying, and i said "hot start" not "heat soak"...two different things

what im doing was a hot topic last year and in several threads, a few peolpe tried it and it works, but not for everyone

My bad, I read right past the hot start. I have told many about doing it and help many people. I think all of us are glad you posted it way back. Thanks again.

 

[glassman]

Trying to one up everyone else has gotten a little crazy. Blown and boosted, what will they think of next?

 

[Union bay Firecat]

not a boosted sled, but couldnt resist getting a buddy to give it a BJ

 

[WyoBoy1000]

Nice