Results 11 to 20 of 27
Thread: Gp1200R carb problem
-
07-30-2020, 06:15 AM #11
- Join Date
- Aug 2016
- Location
- Panama city
- Posts
- 327
- +1
- 23
Good luck!!..You will find it, I' m positive..last one I had was a something sandwiched be teen mount, (wire/hose, can't remember what)..When it does a rpm runaway, use choke to shut it off on a two stroke.
It also could be getting air from fuel pump if the last plate gasket is not properly installed..Tie strip end was is what it was!!..also.put a long vacuum line on carb fuel pump and suck/blow...should be sealed.Last edited by Crazypirate; 07-31-2020 at 04:55 AM.
-
07-31-2020, 05:38 AM #12
- Join Date
- Aug 2017
- Posts
- 93
- +1
- 9
I sowed carburetors missed with sealant. idle speed became lower. but nothing changed when working on water. I will remove the engine and check it for air leaks.
the idle bolt is completely unscrewed. the throttle valves get closed but it works both on the trailer and on the water.Last edited by Oleg Russia; 07-31-2020 at 06:02 AM.
-
08-01-2020, 12:46 AM #13
- Join Date
- Aug 2017
- Posts
- 93
- +1
- 9
oil seals were installed this year. wsm firm.
-
08-01-2020, 03:59 AM #14
- Join Date
- Aug 2017
- Posts
- 93
- +1
- 9
-
08-03-2020, 01:39 PM #15
- Join Date
- Aug 2016
- Location
- Panama city
- Posts
- 327
- +1
- 23
Great find...My 800 has had WSM for years, 1200 has OEM for years..Did you use Grease on crank lip prior to install?
(Don't want them to run dry until the two stroke oil gets to them)
I just checked my idle speed screw setting, it was one turn in from #1 carb totally closed (of course #2 carb linkage has to be adjusted to match #1 carb)Last edited by Crazypirate; 08-06-2020 at 07:43 AM.
-
08-15-2020, 03:39 AM #16
- Join Date
- Aug 2017
- Posts
- 93
- +1
- 9
Hello. I eliminated the problem with air leaks. now it works well on the trailer. in water, the pressure on the return line also drops. it turns out some kind of carburetor pump does not pump? I just don't understand what's wrong with him.
-
08-20-2020, 03:22 AM #17
- Join Date
- Aug 2017
- Posts
- 93
- +1
- 9
this normal or not?
-
01-24-2021, 10:08 PM #18
- Join Date
- Aug 2017
- Posts
- 93
- +1
- 9
Hello everyone. and so my problem is due to lack of fuel. I recently read on the forum that the pressure of the pop off should be measured with the pump removed, that is, apply pressure directly to the needle. when I altered the carburetors according to the settings indicated on this site it says a 90 gram spring is needed. when I installed it I got a very small pop-off. so i use a 115 gram spring and get 40 psi pop off. What do you think if I remove the pump from the carburetor and check the pressure of the pop off, will it be more? and could this be a fuel shortage problem?
-
01-27-2021, 04:18 PM #19
Oleg, you need a 1.5 N&S, and a 95 gram spring to make the correct pop off. The restriction in the return line is supposed to be a 95. (Everyone uses the OEM jet in the return line once they rejet to the recipe. I can't remember which one, pilot or main, but it fits right in the return line once you use a tap to cut threads. Be gentle, the nipple is brass and is easy to strip as you cut the threads. Good luck with it!
-
01-27-2021, 08:06 PM #20
- Join Date
- Aug 2017
- Posts
- 93
- +1
- 9
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
1997 gp 1200 carb problem? (EDIT: COMPRESSION PROBLEM)
By chadbobb in forum Yamaha PWC Performance (2-stroke)Replies: 8Last Post: 08-19-2012, 07:37 AM -
XP 02 carb problem?
By gsxr69 in forum 2-Stroke PerformanceReplies: 4Last Post: 07-17-2012, 05:20 PM -
Carb problem?
By MetalGuru in forum Sea Doo Sport BoatsReplies: 0Last Post: 09-10-2009, 09:28 PM -
Possible carb problem
By sortsol in forum Yamaha Old School SkisReplies: 3Last Post: 08-24-2009, 12:02 AM -
97 GP Carb Problem?
By poorfish in forum Yamaha Old School SkisReplies: 11Last Post: 01-25-2008, 04:30 PM
Those are funny looking Spark Plugs! I'm just joshing yea, yes, those...
X-Charger Upgrade - Wrong Spark...