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| Cutting out http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=70407 |
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| Author: | duck_watcher12 [ Sat May 13, 2017 6:02 am ] |
| Post subject: | Cutting out |
Just added mikuni carb, heads, cam, roller rockers, and gutted exhaust, have trouble with the motor cutting out at 3200 to 3300. Running 167.5 main jet 30 pilot. Motor will hit 4700 no problem out of the water and in water cuts out. Anybody have any idea what could be causing this? |
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| Author: | brickgw [ Sat May 13, 2017 8:23 am ] |
| Post subject: | Re: Cutting out |
Make sure both cylinders are getting good spark and she isn't running on 1 cylinder. Sent from my SM-G900P using Tapatalk |
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| Author: | duck_watcher12 [ Sat May 13, 2017 9:42 am ] |
| Post subject: | Re: Cutting out |
I did forget to mention it has brand new coils, I changed them to be able to rule out ignition problems. |
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| Author: | duck_watcher12 [ Sat May 13, 2017 9:44 am ] |
| Post subject: | Re: Cutting out |
It did flood through the overflow tube earlier so I'm thinking it's got something to do with the float or needle and seat |
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| Author: | cb5331 [ Sat May 13, 2017 10:02 am ] |
| Post subject: | Re: Cutting out |
Did you gap the coils correctly? |
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| Author: | duck_watcher12 [ Sun May 14, 2017 5:50 am ] |
| Post subject: | Re: Cutting out |
Used a feeler guage and checked the old one then put the new one on and checked it till I got it |
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| Author: | cb5331 [ Sun May 14, 2017 9:05 am ] |
| Post subject: | Re: Cutting out |
What if the old ones weren't set correctly? Sent from my SM-T710 using Tapatalk |
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| Author: | duck_watcher12 [ Sun May 14, 2017 10:42 am ] |
| Post subject: | Re: Cutting out |
Well I would assume they were since it ran good up until I had everything added |
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| Author: | duck_watcher12 [ Sun May 14, 2017 10:45 am ] |
| Post subject: | Re: Cutting out |
What is the recommended gap to run? I mean the one coils were at .010 that's what I put them back on at |
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| Author: | Will C [ Sun May 14, 2017 11:39 am ] |
| Post subject: | Re: Cutting out |
Briggs spec is .005 gap. But if you are at .010 i doubt its your problem |
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| Author: | MaXXis85 [ Mon May 15, 2017 8:08 am ] |
| Post subject: | Re: Cutting out |
First of all 30 pilot Is a lot. 25-27.5 is a good start, But that is irrelevant to the current situation. Cutting out as in electrical spark stopping, or a fuel/air delivery issue? What needle and seat you have installed? If its not a 2.3 you will flood the carb. |
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| Author: | duck_watcher12 [ Mon May 15, 2017 8:59 am ] |
| Post subject: | Re: Cutting out |
I have not checked the needle and seat. I bought the kit from the boat dr. As far as the cutting out once I hit 3200 to 3300 rpm it's like it's bouncing off of the rev limiter. |
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| Author: | duck_watcher12 [ Mon May 15, 2017 9:02 am ] |
| Post subject: | Re: Cutting out |
Personally I'm wondering if the needle is sticking |
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| Author: | Smoke [ Mon May 15, 2017 10:02 am ] |
| Post subject: | Re: Cutting out |
| Author: | MaXXis85 [ Mon May 15, 2017 10:31 am ] |
| Post subject: | Re: Cutting out |
cdi or non cdi? External limiter? |
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| Author: | duck_watcher12 [ Mon May 15, 2017 7:32 pm ] |
| Post subject: | Re: Cutting out |
No I have not talk to Andy yet. And it is a cdi |
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