Wow, what a great form.
Just signed up a few weeks ago and have spending hours reading up on my newly aquired 98 speedster and some of the issues I might encounter.
I do have one issue with this boat that someone might be able to help me with.
First a little back ground info. I found this boat at a dearlership in Michigan. It's in great shape. Less than 50hrs, stored inside, compression averages 135 for both engines, no major issues really except I sometimes have the port side engine stall when I slowly speed up to WOT. This is a real pain when trying to pull up a skier. If I quickly jam it to WOT it seems to run fine. It's just when accelerating slowly that it stalls the port engine. It also seems to take more effort to get it to start when it is cold. In the beginning it would sometimes stall when idling for a few minutes. The dealership told me to just turn up the idle speed a little, which I have done. Both engines now idle the same...according to the tach.
Another thing I found was that when at idle I had water squirting out the port side exhaust pipe on the section of the U shaped pipe. I fixed this with a large gear clamp and piece of rad hose. I'll wait until the winter to have it TIG welded properly. Could the water squirting on the MAG area of the engine cause the stalling or are they sealed up pretty good??
After reading about the problems people have encountered with the twin 787's here on this form, I have been slowly picking away at some of the simple things that might be causing this issue They are as follows: New plugs, new fuel filters, cleaned RAVE valves. I do have a shop maual and my next steps are to pull the carbs and check their adjustment and maybe check the clearance on the rotary valve.
Other than the stalling the boat runs great, lots of power and good top end speed.
Anyone else out there with similar problem or have any suggestions before I tear into the carbs???
Just signed up a few weeks ago and have spending hours reading up on my newly aquired 98 speedster and some of the issues I might encounter.
I do have one issue with this boat that someone might be able to help me with.
First a little back ground info. I found this boat at a dearlership in Michigan. It's in great shape. Less than 50hrs, stored inside, compression averages 135 for both engines, no major issues really except I sometimes have the port side engine stall when I slowly speed up to WOT. This is a real pain when trying to pull up a skier. If I quickly jam it to WOT it seems to run fine. It's just when accelerating slowly that it stalls the port engine. It also seems to take more effort to get it to start when it is cold. In the beginning it would sometimes stall when idling for a few minutes. The dealership told me to just turn up the idle speed a little, which I have done. Both engines now idle the same...according to the tach.
Another thing I found was that when at idle I had water squirting out the port side exhaust pipe on the section of the U shaped pipe. I fixed this with a large gear clamp and piece of rad hose. I'll wait until the winter to have it TIG welded properly. Could the water squirting on the MAG area of the engine cause the stalling or are they sealed up pretty good??
After reading about the problems people have encountered with the twin 787's here on this form, I have been slowly picking away at some of the simple things that might be causing this issue They are as follows: New plugs, new fuel filters, cleaned RAVE valves. I do have a shop maual and my next steps are to pull the carbs and check their adjustment and maybe check the clearance on the rotary valve.
Other than the stalling the boat runs great, lots of power and good top end speed.
Anyone else out there with similar problem or have any suggestions before I tear into the carbs???
