bog at holeshot

[done dooin'_winder up]

Mine acts like it's going to backfire. And it happens not just upon a dead stop.

did a wot run last week. when i slowed to make a turn and goosed it a few times around the turn, backfired through muffler. when new it seemed to rpm surge up and down if held at 1-2% throttle while turning around or maneuvering tight spots. still under 500 miles and i would rather rich than lean. maybe tps? i do not get any bog though normally. will check plugs today. anyone know if they are indexed? i'll mark them first anyway.

 

[sledding rocks]

check your secondary clutch , i noticed on the stand that the secondary some times is not coming back all the way into low gear . in most cases it would come back but the odd time it would only allow the belt to only shift 1/4 inch from the top , once u hit the throttle again it would act lazy for a split second , i find the centre bushing seems very sloppy imo . but not sure of the factory specs , i hope someone will look deeper into this , i will report this to my dealer

 

[jonlafon1]

check your secondary clutch , i noticed on the stand that the secondary some times is not coming back all the way into low gear . in most cases it would come back but the odd time it would only allow the belt to only shift 1/4 inch from the top , once u hit the throttle again it would act lazy for a split second , i find the centre bushing seems very sloppy imo . but not sure of the factory specs , i hope someone will look deeper into this , i will report this to my dealer

Notice this ! And actually could be related to belt blowing IMO

 

[tony lawhead]

Notice this ! And actually could be related to belt blowing IMO

it is your fuel regulator too much psi!!!! adding to much fuel down low

 

[ccyamaha1]

It turned out mine was a fuel pressure regulator, it was pumping 95 psi and is only supposed to be 44-45 psi.
totally different machine now

 

[tony lawhead]

It turned out mine was a fuel pressure regulator, it was pumping 95 psi and is only supposed to be 44-45 psi.
totally different machine now

sorry guy's not sure why it keeps replying holy crap

 

[jonlafon1]

sorry guy's not sure why it keeps replying holy crap

LOL I got it its the fuel regulator.. its all good

 

[jonlafon1]

It turned out mine was a fuel pressure regulator, it was pumping 95 psi and is only supposed to be 44-45 psi.
totally different machine now

Stock sled or flashed? Your dealer tested and adjusted?

 

[Shagnos]

your fuel reg is over psi, adding too much fuel down low!!!!

Tony, you passed out with your forehead on the send button!!

 

[Motorhead]

Tony, you passed out with your forehead on the send button!!

Now that is diagnostics!! Ha Ha..

 

[ccyamaha1]

Stock sled or flashed? Your dealer tested and adjusted?

Stock sled and yes it was at the dealer for this and Yamaha told them to check the regulator and sure enough it was The problems they replaced it with one that was still in a crate , that was good dealer service if you ask me

 

[Doowithblue]

That's what all dealers are forced to do it seems. No parts available.

 

[jonlafon1]

Yes good service. Thanks for info on what you found

 

[NOS-PRO]

I still have yet to see a bog, hesitation from my SW or others I ride with. These sleds range from stock to stock ECU/ TP clutch kit, flashed ecu with TP clutch kit and flashed with OSP clutching. Still, no hesitation and even made a video that I need to download to Youtube where I can pull the skis up instantly like the start of a snow-cross race.

 

[SledFreak]

Where is the fuel regulator located on the 998?