yamaha waveblaster bogging

[thehud]

hi i would like to know if any body has experienced the same problems i recently purchased a 96 wave blaster 760 dual carbs when i ride it it runs great for about an hour or so then i notice it starts to break up and the last time it would bog out sometimes when at full throttle i changed the plugs but how do you tell if they are getting fouled

[Technical Support]

Re: yamaha waveblaster bogging

Plugs will look black and oilie. have you changed out the plugs when you start having the problem? and what do they look like?

[thehud]

Re: yamaha waveblaster bogging

i changed the plugs and ran it the one up front only the electrode was dark brown the back plug the all the threads and electrode were brown also it was wet
the thing is the ski runs awesome for the first hour or so

[torquenut]

Re: yamaha waveblaster bogging

Do following, compression check.
When was the last carb rebuilt if not known they need to be checked.

[sailboatusa1]

Re: yamaha waveblaster bogging

Add carb and choke cleaner to the gas. This should get you by. The carb Diaphragm may need replacing good off season project. if this does not work. Check the fuel filters. I would only do the carb as a last result.

[Technical Support]

Re: yamaha waveblaster bogging

Dont put carb and choke cleaner in the gas. It will break down any crap in the fuel lines and any thing in the fuel valve then it will clog up the internal fuel filters in the carb and burn up your motor. It sounds like your running a bit rich, whats your carb settings?

[thehud]

Re: yamaha waveblaster bogging

well i brought this from a guy who does nothing but rebuild engines for the newyork area he said the carbs were done last year well anyway since i had been away i did not get the chance to use the ski so now i have a new problem its been a week today i go to start the ski and it sounds rough turning over i try a couple of times and now i feel the starter engauge but it does not turn so can i get to the starter without taking the whole engine out

[Technical Support]

Re: yamaha waveblaster bogging

Yes you can, but is your battery dieing on you? When you flushed out the ski, did you have the water running into the motor with out the engine running? You might have water in the motor from the last time you flushed it causing it to lock up. Let us know how you make out.

[thehud]

Re: yamaha waveblaster bogging

after i flush it i take the hose off while its running and i wait till the water stops running out of the tell tail then i shut it then i start it back up 2 more times just to make sure there is no more water but if there was water in it and i took the plugs out than should the water come out when i crank it over

[Technical Support]

Re: yamaha waveblaster bogging

Yes

[bigem1]

Re: yamaha waveblaster bogging

thehud:

A compression test should show you that you have a head gasket problem. When the ski heats up the head flexes enough to suck air and water through engine..been there done that.. I'll bet you also need a battery too...

Have A Great Day!!

[thehud]

Re: yamaha waveblaster bogging

well i also have another thread out about my ski not starting and in the end i have found out that the inmpeller is jaming up with the housing or i guess you call it the lining now i have only driven the ski 3 times i am wondering if that is the cause of the bogging problem the whole time

[bigem1]

Re: yamaha waveblaster bogging

thehud:

Great news.. I Hope that is was the problem. I can't figure out the wet plug.. Usually engines sound loaded up if propeller gets bound..

Oh Well! Thank God for little problems..
My ski has a bad emm or ecm module.. but Kawaski came through and is sending me a new unit..Seems they know of a problem with the 2000 stxdi units..I'm the original owner and have done all the proper maintance and had the unit servived every year a the dealer and they came through for me... only going to cost service fee.. $96.00 what good news could have been $1200.00 plus..

Have A Great Day!!

[thehud]

Re: yamaha waveblaster bogging

thats great news for you i hope you have a great summer with no ski problems actually when i said the back plug was wet it was wet with oil

[bigem1]

Re: yamaha waveblaster bogging

AMEN!

Have A Great Day!!