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| Longtail bogging down https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=24552 |
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| Author: | brandon327 [ Thu Dec 01, 2011 11:18 pm ] |
| Post subject: | Longtail bogging down |
Got a mudbuddy 27hp kawa longtail with 9x7 prop. When you put the prop below the waters surface the motor bogs bad even at full throttle. The motor runs fine out of the water at full throttle. The carb has been cleaned and checked. The gorverner seems to be working. Any ideas as to what is wrong? |
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| Author: | indawoods [ Fri Dec 02, 2011 1:34 am ] |
| Post subject: | Re: Longtail bogging down |
sounds like firing on one cylinder or starving for fuel. check spark both sides, then fuel flow/ pour gas directly in carb under load. fuel line may be restricted/fuel pump etc.. |
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| Author: | brandon327 [ Fri Dec 02, 2011 8:03 am ] |
| Post subject: | Re: Longtail bogging down |
Fuel pump is what i was thinking. I has an electric fuel pump. It just puzzle me as the only time it does it is when it is under a load. I can run it full throttle out of the water and it runs great. |
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| Author: | bayoumonster [ Fri Dec 02, 2011 9:21 am ] |
| Post subject: | Re: Longtail bogging down |
The symptom you describe is classic for running on one cylinder. I'd check for spark first. |
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| Author: | backwater86 [ Fri Dec 02, 2011 11:04 am ] |
| Post subject: | Re: Longtail bogging down |
Do you have a OMC style hose connection from the hose to gas tank? They SUCK!! remove and get a parker hose barb and run the fuel line directly to the gas tank |
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| Author: | Rem man [ Fri Dec 02, 2011 8:11 pm ] |
| Post subject: | Re: Longtail bogging down |
might check your primer bulb to... have seen the inside shredded!! |
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| Author: | JGUT [ Wed Dec 07, 2011 2:47 pm ] |
| Post subject: | Re: Longtail bogging down |
sounds like you have a bad coil. like others have said only running on one cylinder. |
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| Author: | Strapassasin [ Wed Dec 07, 2011 9:12 pm ] |
| Post subject: | Re: Longtail bogging down |
My 27 gdlt did same thing bc of bad coil. Put ur hand on each head while running and see if both are hot. U prob running on one cylinder. |
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| Author: | paul91 [ Thu Dec 08, 2011 12:35 am ] |
| Post subject: | Re: Longtail bogging down |
I'd been fighting the same problem with my 16 vanguard. While the engine's running, pull each spark plug cap and see if you notice a difference in the amount the engine is bogging down. Mine didn't make a difference when I pulled the left one, but it killed when I pulled the right one. I started checking all the electrical stuff to that cylinder and ended up finding the coil arcing to ground on the engine block. A little silicone on it and it's fixed. Good luck |
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| Author: | TonyGMcElroy [ Thu Dec 15, 2011 11:55 am ] |
| Post subject: | Re: Longtail bogging down |
Same thang happen to me but I had a push rod come loose luckily it wasn't bent and we got it goin again in time 2 kiss some woodies |
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| Author: | critch5 [ Thu Dec 15, 2011 3:37 pm ] |
| Post subject: | Re: Longtail bogging down |
mine does the same shit but only a single cylinder! any ideas? |
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| Author: | critch5 [ Thu Dec 15, 2011 3:40 pm ] |
| Post subject: | Re: Longtail bogging down |
mine does the same shit but only a single cylinder! any ideas? |
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| Author: | Neva_easy87 [ Fri Dec 16, 2011 5:43 pm ] |
| Post subject: | Re: Longtail bogging down |
Check the push rods like tonyg said i had the same problems did everything u did then started tearing the motor aprt and found a bent push rod got a new one and it ran perfect |
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