Hey bud, to be perfectly honest with you the motor on your Jaguar is 1 if the most Reliable DFIs made to date, No Chit…..that thing is a frickin Torque monster, 247hp at the prop, if it has red oil in the tank run her Down and get in with a BRP dealer online or personally that has XAD100 in bulk. Its 100% synthetic, has Carb X in it so theirs no De-carbing every 50hrs, run Startron or fuel coanditoner in your fuel, change over the plugs to the latest E-Tec plugs, get her propped to be at the 5800-6000 range when your LOADED dont prop it for a light load if you dont run that way, worst thing for any Stroke of motor…….it will do nothing g but add warranty to spend several thousand dollars on a optimax pop or SUV motor…….any help let me know Brannon 847 450 4011