Re: idleing problem.Help please!!
Ok listen. Put the boat in the water on your trailer with all trailer tie downs still locked down at the transom and bow of the trailer locked. Back her into the water so the motor when tilted down is fully submerged and able to pump water. Or if you keep it docked just tie up real good. Make sure your parking break on the truck is on good! But in reverse the thrust is less so you wont have a issue!
Start the boat. Rev it up and get her in reverse at 1700 rpm. With your air breather off of all the carbs close each butterfly one by one with your hand by sticking your finger in the carb and close each one and see if it bogs down on each cyl while the boat is under load at 1700 rpm in reverse.
They each should bog down the motor!
If you close one butterfly and dont here a bog or takes longer then others to get boged thenn that cyl is either getting to much fuel so the cyl is flooded or barly sparking and working less causing your ruff idle.
Now this can mean a couple of things. If the fuel pump is conected to the cyl that takes longer to bog its the fuel pump. because whats happening is the diafram in the fuel pump is warn punctered etc.
And what will happen is that cyl will draw alot of fuel flooding it causing the ruff idle and low spark bc of the flooded plugs.
Just because the fuel pump is shot does not mean that the other cyl arent getting fuel and wont get fuel.
It just means 1 cyl is getting to much fuel....
Or that cyl that takes longer to bog or dosent bog at all may have a bad plug or failed plug, or a bad coil, or a bad wire that goes from the coil to the plug.
Now these are the quickest easyiest ways to fix and try to solve the issue. Do these techmecs before you start ripping the carbs off...
""""(Also when the fuel pump is removed from the engine, start the engine with all hoses disconnected etc just as you disconnected it. And give some throttle and let it come down in idle and put in nuetral. Now if it is the pump she should idle in nuetral because now the 1 cyl is not getting extra fuel and the fuel left in the carbs will even out and should idle for about 2 min to 5 min,,,,,)""""""
"""""(Now if she dosent idle without the pump in then its not the pump!)""""
Now if you change the difram in the fuel pump and you change the coil, plug, wire and you still have a issue with that cyl then take all the wires off the plugs and do a complete comp test and be sure you have good even comp. Anything within 15 psi of each other is still considered good.
So if its 115 120 110 105 its still good but will give you a little uneven ness but not enough to sound like a uneven idle or be an unevian idle.
So if you check compression and its all good..... Then take that carb yjay bogged slowly or not at all off and rebuild it and put it back on.... Then it should be fixed..... You may find debri etc or signs that moisture may have bean in it etc.
Let the carb soak excluding the float in (SEA FOAM) (a product to clean fuel systems) for about 3 hours as long as all plastic pieces are off yje carb. Then rebuild the carb!
Those are the only things that can cause the un even idle....
You now at this point after doing this have checked and repaired spark,fuel,air, carb all the things you need to make her run... If you don't know how it works you wont be able to fix it!
Unless your stater is no good which if it is that would be most unlikly and it wouldnt even start at all. Or a elec short which is all uncommon
Follow these steps and trust me youll find the issue...
Dont start drilling your carb etc etc ...... Just not a good idea with debri shavings etc..could cause more problems.. ( No offence to Daviet at all) (I Just wouldnt do it at all personally!)
Get a very small hook pick and a small strait pick and get it out... And again No offence to daviets advice at all but I just wouldnt do that personally! Daviet may be a very experienced mechanic for all we know and he may have a very steady hand!
You can do whatever or however you would like to get it out! But just be carfull if your drilling
And tell me what happens...
Also your phone number was edited out and you cant post your number directly on the thread. You can click on my screen name and send me a P.M (personal Message) with your number and i willl walk u threw it again!
Hope my advice and daviets advice helped!
