Howdy folks,
My Sportsman is still nearly new. Bought it new at the end of 2016 and have right at 50 hours and 91 miles on it.
Last weekend I was riding it around the property and parked it for about 10 minutes. When I went to start it up, I didn't hear the fuel pump pre-charge. The bike ran for about 5 seconds and wouldn't restart. I downloaded the service manual and proceeded with the checks. Everything indicated that it was the pump. Although I think the service manual is very vague when it comes to how many ohms it should read to be considered bad. Anyway I nearly fell over when I saw the price for a new Polaris pump ($400) so I found the quantum fuel systems pump kit much more reasonable ($69) and ordered it. I was pretty ticked off that the Bosch OEM pump failed at 50 hours but apparently I'm not alone. So I spent yesterday installing the new pump and regulator and took it for a test drive. From day one this bike has been cold natured. Starts right up, but unless it's been running for at least 3 minutes any throttle input causes it to pop back through the air cleaner. It is a slug until it gets up to temp. Yesterday was no exception but I will say that changing that pump alone increased the felt power considerably. It took off like a rocket and caught me off guard. I was very surprised at how much more power it made so I believe the OEM pump was weak from day one.
Are there any suggestions where to look to correct the cold starting issue? I am considering ordering the NGK plugs for it just for starters. I am also wondering about how fresh the fuel is since I've probably only refilled it about five times since I've owned it. I do use Starbright for the ethanol control and I add about 3 oz of Seafoam to every tank. The Starbright is what I use in my boat and motorcycle. They state that it will keep the fuel fresh for up to 3 years and I've never had any problems while using it.
I appreciate any suggestions.
Thanks!
My Sportsman is still nearly new. Bought it new at the end of 2016 and have right at 50 hours and 91 miles on it.
Last weekend I was riding it around the property and parked it for about 10 minutes. When I went to start it up, I didn't hear the fuel pump pre-charge. The bike ran for about 5 seconds and wouldn't restart. I downloaded the service manual and proceeded with the checks. Everything indicated that it was the pump. Although I think the service manual is very vague when it comes to how many ohms it should read to be considered bad. Anyway I nearly fell over when I saw the price for a new Polaris pump ($400) so I found the quantum fuel systems pump kit much more reasonable ($69) and ordered it. I was pretty ticked off that the Bosch OEM pump failed at 50 hours but apparently I'm not alone. So I spent yesterday installing the new pump and regulator and took it for a test drive. From day one this bike has been cold natured. Starts right up, but unless it's been running for at least 3 minutes any throttle input causes it to pop back through the air cleaner. It is a slug until it gets up to temp. Yesterday was no exception but I will say that changing that pump alone increased the felt power considerably. It took off like a rocket and caught me off guard. I was very surprised at how much more power it made so I believe the OEM pump was weak from day one.
Are there any suggestions where to look to correct the cold starting issue? I am considering ordering the NGK plugs for it just for starters. I am also wondering about how fresh the fuel is since I've probably only refilled it about five times since I've owned it. I do use Starbright for the ethanol control and I add about 3 oz of Seafoam to every tank. The Starbright is what I use in my boat and motorcycle. They state that it will keep the fuel fresh for up to 3 years and I've never had any problems while using it.
I appreciate any suggestions.
Thanks!
