07-01-2010, 04:07 PM #1
Different setting on highs on carbs
Why are the settings on the high speed circuit so different from each other.. It may look like this.. 3/8,
1/1/8, 7/8 turns out? Why are they different? And why are the lows all the same? ie.... 1/2 turn out.?
This isnt a particular ski.. Just wondering why they are different from each other.. I thought they were like 3 little engines all connected by 1 crank. I would think they all should be the same.. I'm sure others would like to know why also..
Anyone have a REAL answer to this? It wouldn't be the circuits are different, there all the same! SEPERATE CARBS.! is it heat related? A triple pump will flow all the gas you need to any of the carbs.
07-01-2010, 04:56 PM #2
i think it has to do with heat a little bit.. and every engine is different by a little bit
07-01-2010, 05:22 PM #3
Thats not a good enough answer! lol NEXT!
07-01-2010, 05:47 PM #4
- Join Date
- Jun 2010
- sutter, ca.
Iasked someone the same question...got no reply.
07-01-2010, 06:57 PM #5
I am confused by this also. I have been on another thread all week with someone else who is trying to get a 780 up and running because of this exact issue. One thing that I did notice that leads me to believe that it has something to do with the carbs themselves is that when reading the Clymer Manual to check the settings I found that the High settings varied on the 96 models but were all the same on 97 models.
Example: 1996 SLT780 is Low 1 3/8 and High 1 1/8 MAG, 7/8 Center, 1 1/4 PTO.
1997 SLT780 is Low 1 1/4 and High 1/8.
I still don't get it.
The only other thing I can think of is that maybe it has something to do with the firing order of the pistons.
07-01-2010, 07:46 PM #6
That would have nothing to do with it. Pistons dont care what hole there in. maybe its actual fuel delivery thru the system under load. every carb has a location on the ski and the fuel lines routes gas to different carbs. some are longer routes than others, but i still dont understand why it has to be so different. once you hit full operating fuel pressure, why is there such a difference? there shouldnt be any.
even jetting is the same on most unless its tricked out.
07-01-2010, 08:01 PM #7
im telling you its got to do with heat lol.. the way the the middle gets hotter then the pto and the mag gets hot from well the magneto.. this is what i have read before.. might not be all of th reason but part of it lol
07-01-2010, 08:53 PM #8
07-01-2010, 09:11 PM #9
07-01-2010, 09:19 PM #10
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By seaobin in forum Kawasaki Open DiscussionReplies: 3Last Post: 02-13-2008, 03:59 PM
By Fidohereboy in forum Sea Doo Open DiscussionReplies: 4Last Post: 09-27-2007, 06:51 PM
By IrishGpr05 in forum Yamaha PWC Performance (2-stroke)Replies: 1Last Post: 05-28-2007, 12:51 PM
By fenn in forum Yamaha PWC Performance (2-stroke)Replies: 6Last Post: 03-22-2007, 07:46 PM
By Bamafanatic in forum Shops, Tools and TricksReplies: 11Last Post: 10-27-2005, 04:54 PM