yamahahog
Newbie
- Joined
- Oct 31, 2015
- Messages
- 10
- Reaction score
- 1
- Points
- 203
- Location
- Evanston Wyoming
- Country
- USA
- Snowmobile
- 2015 Yamaha Viper M-TX 162 SE 1st stage MPI Turbo, 2007 Yamaha Apex MTN SE 162
I have a 2015 Viper SR MTX with the 180-190-MPI turbo it and I'm having issues all of the sudden not getting up to full rpm like I'm losing boost or something like that. Has anyone had any issue like this? PLEASE!!! HELP!!!
Dealerjohn
Expert
- Joined
- Mar 26, 2010
- Messages
- 264
- Reaction score
- 48
- Points
- 468
- Location
- Labrador
- Country
- Canada
- Snowmobile
- 2015 MTX Viper, XTX Viper, 2001 SRX 700
do you have a boost gauge? if not, get one.
yamahahog
Newbie
- Joined
- Oct 31, 2015
- Messages
- 10
- Reaction score
- 1
- Points
- 203
- Location
- Evanston Wyoming
- Country
- USA
- Snowmobile
- 2015 Yamaha Viper M-TX 162 SE 1st stage MPI Turbo, 2007 Yamaha Apex MTN SE 162
Yup I have a digital and a needle gauge.
madsledder
Extreme
- Joined
- Apr 30, 2006
- Messages
- 122
- Reaction score
- 4
- Points
- 718
- Location
- Creston B.C.
- Country
- Canada
- Snowmobile
- Yamaha
Check the connection for the map sensor make sure it hasn't come loose and check make sure the wires are seated in the plug on the map sensor.
loudelectronics
TY 4 Stroke Guru
- Joined
- Dec 1, 2007
- Messages
- 925
- Reaction score
- 42
- Points
- 738
- Location
- Souris, Manitoba
- Website
- presdwr.spaces.live.com
Look for any air leaks, check your belt, do any clutching? I had to switch to the 8DN belt. RPM was all over the place with the 8JP. I blew up 3 8JP in first few weeks with sled. Switched to 8DN and I have not changed one in 3 seasons.
