3 forum posts
I recently returned from an outing where my MSR whisperlite performed less than admirably. The stove had been in storage for about a year since its last use. The issues I had with it were twofold: first it did not seem to be being priming properly and there was a very large ball of orange flame that was significantly larger than in the past and when it finally settled down to a blue flame it was very small and despite being turned up full blast it took upwards of 10-15 minutes to boil water. I switched to a smaller fuel bottle while on the trip and it began to work a little bit better, enough to get through the rest of the trip but still not anything like it used to. No roar, weak flame, extensive time to boil.
When I returned home, I figured the stove needed a good cleaning. I cleaned the stove per MSR instructions and lit it up. Now its working even worse, it will not settle down to a blue flame at all. I read the MSR troubleshooting, and began exploring this site and others. I figured it might be a clogged jet, dirty filter, or old degraded fuel. The fuel is old and likely degraded, but I don't think that would explain why the stove would be worse off post cleaning. I took the stove apart again made sure the jet was clear. Then I took apart the pump cleaned out the filter by submerging it in fuel and blowing through the end. In the whole cleaning process very little gunk came out, and it did not seem to be overly dirty. I then tried taking the stove completly apart and wiping down each piece with a paper towel to try to remove any gunk. No success.
Does anybody have any suggestions? My next step is buy a repair kit, and put a new fuel filter on the pump. Though I do not understand why it would work worse after I did all this work. At this point the stove is not even usable in the outdoors. Thanks for all the help. This is my first attempt at fiddling with my stove.