I just started my new to me 07 phazer that I bought about a month ago. I let it warm up on the lift to adjust the track and it is bogging at times when giving it gas, other times it is fine and sometimes it will idle low around 1200 rpms then backfire when giving it gas. I am going to change spark plugs to see if that changes anything. Just curious if anyone has experienced anything similar or any ideas on what to look at?
- Joined
- Jun 1, 2004
- Messages
- 7,755
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- sudbury on
- Country
- Canada
- Snowmobile
- 2016 apex xtx
2011 apex xtx
2009 phaser rtx/x
1997 et410t/r
1988 vk 540
fresh gas in it?
when replacing the plugs, open up the plugs for the coils and make sure the wires are good to the terminals. on the one we have they frayed until only one strand was left. it would be fine cold but start acting up once warmed up.
could be a dirty tors switch at the throttle block as well. ours is picky about how you hold the throttle otherwise it farts while running down the trail.
when replacing the plugs, open up the plugs for the coils and make sure the wires are good to the terminals. on the one we have they frayed until only one strand was left. it would be fine cold but start acting up once warmed up.
could be a dirty tors switch at the throttle block as well. ours is picky about how you hold the throttle otherwise it farts while running down the trail.
Not Burn'n Oil
Newbie
- Joined
- Nov 19, 2020
- Messages
- 9
- Age
- 35
- Location
- Menomonie Wisconsin
- Country
- USA
- Snowmobile
- 2012 Phazer MTX
I also just got a phazer, 2012 mtx, and it had very similar issues. the guy i got it from, got it in offseason last year and had done alot of "garage starts" and shutting it off right away. I pulled the spark plugs and they were black and fouled as can be. These will foul easily if you start and do not let warm up before shutting off from what i have read and experienced early on, once you start do not touch the throttle until after it lowers from its warm up RPM (2500 i think) down to it's normal idle of 1800.
After i replaced the spark plugs it started right away and went through its idle sequence perfect for the 3 days in a row i checked it. What i did when starting it (knowing i would not be able to ride it) is after it warmed up and idled for a bit, i would rev it up just to point of clutch activation a few times before shutting it off and that seems to have worked for me to avoid fouling the plugs. (i am very much a newbie so not saying that is recommended, just something i found worked to prevent the fouling of plugs during "garage starts")
Start simple and replace the plugs, i was worried a little bit about mine too and once i replaced the plugs it eased my worries. Now just wait for some snow to find out.
Just to be safe i also drained all the gas out of the tank and filled up with fresh fuel and added a bottle of seafoam.
After i replaced the spark plugs it started right away and went through its idle sequence perfect for the 3 days in a row i checked it. What i did when starting it (knowing i would not be able to ride it) is after it warmed up and idled for a bit, i would rev it up just to point of clutch activation a few times before shutting it off and that seems to have worked for me to avoid fouling the plugs. (i am very much a newbie so not saying that is recommended, just something i found worked to prevent the fouling of plugs during "garage starts")
Start simple and replace the plugs, i was worried a little bit about mine too and once i replaced the plugs it eased my worries. Now just wait for some snow to find out.
Just to be safe i also drained all the gas out of the tank and filled up with fresh fuel and added a bottle of seafoam.
Update. I got the plugs changed today and here is what it does. There is no more backfiring but I can not get the idle over 1700. When started cold it will idle at 2600-2700 rpm then when it warms up it would idle at 1300 rpm so I adjusted the idle up all the way and it will only get to 1700 rpm. I searched this and a few others had this problem but there was never a fix posted.
