misfire

Brief Background: 3 years ago had 2 BRP Short Blocks put in. 4 x new Nikumi Cards installed, synced and tuned about 2 months after engines. Has run pretty good the last few seasons. 787 engines. Changed the Bilge pump a few weekends back. Not related I am sure, but this started right after...

trying to track down a fault on my 3D RFI. only runs on 1 cylinder constantly. Connected candoo pro and when individually activating coils with plugs removed and earthed can only get 1 to spark. Tested resistance in wiring between coil and ECM and both test perfect (0 ohms), but only 1 will fire...

trying to track down a fault on my 3D RFI. only runs on 1 cylinder constantly. Connected candoo pro and when individually activating coils with plugs removed and earthed can only get 1 to spark. Tested resistance in wiring between coil and ECM and both test perfect (0 ohms), but only 1 will fire...

ok so i have a 97 gsi, and i just spent some time replaceing a thrust bearing, i replaced the fuel lines to new ones that wont deteriorate, and i had to take the whole d!$# motor out just to tighten the 4 stud engine mounts the secure the engin to the plate. i had it aligned professionally. i...

I bought a 97 Speedster last summer. Long story short, Starboard side motor runs great, Port side motor misfires back into the carb. Carbs were professionally cleaned, new fuel, plugs, etc, I even switched the carb and ignition coil from the Starboard side to the Port side and it still...

Ive got a 97 gtx 787. I needed to add oil and only option at the time was some polaris 2 stroke snomobile oil. I've ran it a little and ever since adding the oil I have a random miss under load and is really noticeable in the top end at WOT at 7k that's when you really hear it miss. I've pulled...

first id like to say hello,i am new to this forum and you all have already greatly helped me in past post with other things and or current problems on my 1996 gtx. here is the story.....took it out of a 2 year sit....bought a new battery. tried to start it but the starter was frozen solid...

Hello All, I am writing this post in desperation to try and fix some issues me and my brother are having on two GTX's we purchased about a month ago. :cheers: 2000 Sea Doo GTX DI Millennium Edition (5649) 1996 Sea Doo GTX 787 cc (5640) Let me start with the issues on the 96.. We are...