Triumph Forum: Triumph Rat Motorcycle Forums - View Single Post - LT MAP Tubes and flat spot issue.
View Single Post
post #2 of (permalink) Old 04-10-2019, 01:16 PM
Grand Prix 125
Join Date: Aug 2018
Posts: 35
I can't help with the problem you describe but I don't believe it's related to MAP tubes. At the speeds you mentioned the engine will be turning ~3000 rpm. From my experience on my 2010, leaking tubes cause problems at idle and poor throttle response below 2500 rpm.
You can see a drawing that shows the MAP tubes on Each tube consists of 5 pieces, 3 rubber connections and 2 hard plastic tubes. Do yourself a favor and get rid of the stock Triumph tubes and replace with single piece flexible tubing and tube clamps at each end.
jaknife is offline  
For the best viewing experience please update your browser to Google Chrome