polaris msx 150

[cclaytonm]

have a polaris msx 150 it will run awhile a full speed then slows to about 35 mph when this happens the turbo gauge reading goes down to about half let up on throttle idle around a while give full throttle will go full speed again for a while then same thing happens does not have same time it will run a full speed sometime will cut back very quickly sometime will run maybe 5 min. need help what may be going on. thanks clay

[Technical Support]

Re: polaris msx 150

SBT doesn't support this Polaris engine, But it does sound like its going into overboost and the waste gate is stuck closed. Post your question on PWCtoday.com in the Polaris section, other MSX 150 members may have more info on this issue.