I haven't looked on mine but are you possibly over filling it? usually an overflow tank is only to be filled partially so when the fluid expands when hot it doesn't spill out. As for towing, I am not sure, I had to tow my friend about 1/2 mile when he ran out of gas and we just did it at idle 3-4mph to avoid getting water in the engine, worked out ok was just slow going.

 

I have a 2017 and mine is doing the same thing. When I first got it I topped up the coolant and the cap was easy as pie to take on and off. After my first oil change with the deck off (20 hours) I took the cap off and it was he'll to get back on. Ever since then I have been leaking coolant. I thought it might have been the water pump gasket or oil cooler like other people have had problems with but I confirmed today that it is leaking out of the overflow. I put a strip of paper towel inside the overflow tube and after about 20 mins I checked the hose and the paper towel was soaked in coolant. It is not over filled I believe it is due to a bad seal between the reservoir and cap. More noticeable when doing tail stands but even just playing around lightly I am losing some. I took the cover off during my ride just to check and make sure that it wasn't expanding too much. I think something got warped, either the cap or the reservoir and it's not sealing properly.

 

Hmmm is this just a 2017 problem?

 

-Update- I decided to try a new coolant reservoir cap to see if that would fix my leak. My dealer said they have never heard of any leaks coming from the reservoir. Picked up a new cap (about $20 Canadian) and it screwed on much easier. I went for a ride and rode hard all day, tail stands for days. I would check the coolant expansion reservoir periodically and it was building up a little pressure when before the coolant would not expand into the reservoir. Normally I would loose about a 1/2" of coolant after a ride and after engine cooled I was still on the fill line. It seems the new cap fixed my problem so I'll see how long this cap holds up.

 

 

Hey all,

Just signed up so I could comment on this thread - although it is not an official recall by BRP, our local dealership here in Ottawa, Canada is aware of this issue and is replacing the coolant reservoirs under warranty. Once the cap is removed the bottle itself changes it's shape from perfect circle to a slight oval causing the cap to no longer hold pressure.

We have a fleet of rental Sparks and both 2016 and 2017 models have this issue. All of our bottles have been replaced under warranty and BRP rep for our region is aware of the issue.

The issue is still happening even with the new bottles. The trick is to never open the cap!! BRP needs to redesign the bottle and recall them all.

 

i removed the cap on my 2014 last summer. It took like 30 min to get the coolant cap back on. I was mistified, it simply would not fit. I had to use a razor blade and trim a bit off of the plastic bottle.

it fits not, but I loose like a few cups of coolant per season....

 

Which cap did you decide to use instead?