warming your sled up?

[cstout]

I have got a 04 king cat 900. It has wiseco pistons in it. I was just wondering how long you guys let your sled warm up befor you ride it? I am asking because i cold siezed my piston last week. Thanks for any help.

 

[ACMtnCat]

On my 900s I had I would let it warm up about 4-5-6 minutes in the parking lot. The best way to know if its warm enough is to put your palm on the rear cooler and feel if its warm. And I NEVER pin the throttle till at riding altitude 3-4-5 miles up the road. Blip the throttle that first 3-4 miles DO NOT hold throttle in one position cruising up to the riding spot.

 

[cstout]

thanks. That helps a lot. I will start doiong that.

 

[Fiddy]

if it was me i would ditch the wiescos they expand to much

 

[Ultra]

YUP...and then the ring pin falls out...ring spins...catches a port and turns into junk...rebuild and repeat!

 

[diirtbag]

nothing wrong with wiseco's in my experience .need to warm up is all,I do the same as what was said untill cooler warms ,then cruise slow a bit

 

[Devilmanak]

When I put my Cutler motor in, I installed a temp gauge. It amazed me how long it takes to get it up to 115 degrees. I try not to even touch the throttle until it gets there.
Chris

 

[Ultra]

Got 7 1M's. Got temp gauges on every one. Takes a good 20-25 minutes to get up to temp, then when they are at temp thats just the water and the top end aluminum. I will then shut them down and let em heat soak for about 10 minutes. The idea is to warm up the steel crank.
Aluminum will warm and expand faster than steel, leaves you with growing gap between the crank and the cases. Fire them up again bring it up to temp again then head out, and then easy duty for the first 3-4 miles. Have not had a single motor issue in the last 8 years on any of my sleds as well as anybody in my group.

The rest of the day when you shut them off for no matter how long when you restart always give them about 2-3 minutes for the water to re stabilize. If you pull and go the now cold water in the coolers will transfer to the cylinders and shrink them, thats at the same time the pistons are expanding due to climbing combustion temps. That is a cold seize and it can happen any time the cylinders are shrinking and the pistons are expanding.
If you have a water temp gauge you will see a 20-30-40 up to a 50 degree water temp drop right at the cylinders, even if it has only been turned off for only 15 minutes, and this happens every restart all day long.

And I can't tell you how many times I have heard about the ring pin problem on wiseco's....sorry.