Joined
·
108 Posts
This is a weird one, any insight would be appreciated. I just purchased an 89 & a 91 exciter. The 89 needed carbs overhauled and a new track, did all that & it was great. So about two weeks later picked up the 91, almost identical machine. It would only run with the choke on so I tore apart the carbs and found a plugged idle jet. I cleaned them out, put them together and all seemed fine for about an hour. Then it starts to load up horrible. If you shut off the fuel, just before it runs out of gas it takes off like a scared rabbit.
So, must be bad carbs, right. So today I went through them again. Floats good & correct height, needle & seats great. Choke pistons aren't bleeding off. So tear apart fuel pump. Good. Remove fuel tank and check ventilation system, fine. You get the picture. All looks good so decide to go for a ride and see. By the way both machines have factory jetting.
So the wife & I are out for about 45 minutes and all is great. Stop for a 5min break and go to leave and BOGG!! And I mean it barely moves. Here we go again. At least I have daylight this time. I'm on the trail so I can't take them apart but I pull the carb pistons to see which one is slobbering. No slobber but LOTS of vapour. What the??
So I take it home to "start ciferin' agin" and the wife gets stuck so I go to bail her out. Now she is no where near as aggressive as I so she did not notice her machine was VERY loaded up as well. Thats when a light came on. I just don't know if it's the right one. Its about 20 degrees warmer today than the last time we were out. These Exciters have a hot water shut off valve for the carbs. They are both stuck so I can't shut off the coolant flow. Could this be causing perculation? I will get new valves but what temperature should they be used at? It's about -2c today and the snow is hard so not very much is getting thrown on the heat exchangers.
I've been around machines for far too long but never owned snowmobiles before. Any insight would be nice. Thanks.
So, must be bad carbs, right. So today I went through them again. Floats good & correct height, needle & seats great. Choke pistons aren't bleeding off. So tear apart fuel pump. Good. Remove fuel tank and check ventilation system, fine. You get the picture. All looks good so decide to go for a ride and see. By the way both machines have factory jetting.
So the wife & I are out for about 45 minutes and all is great. Stop for a 5min break and go to leave and BOGG!! And I mean it barely moves. Here we go again. At least I have daylight this time. I'm on the trail so I can't take them apart but I pull the carb pistons to see which one is slobbering. No slobber but LOTS of vapour. What the??
So I take it home to "start ciferin' agin" and the wife gets stuck so I go to bail her out. Now she is no where near as aggressive as I so she did not notice her machine was VERY loaded up as well. Thats when a light came on. I just don't know if it's the right one. Its about 20 degrees warmer today than the last time we were out. These Exciters have a hot water shut off valve for the carbs. They are both stuck so I can't shut off the coolant flow. Could this be causing perculation? I will get new valves but what temperature should they be used at? It's about -2c today and the snow is hard so not very much is getting thrown on the heat exchangers.
I've been around machines for far too long but never owned snowmobiles before. Any insight would be nice. Thanks.