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| Coils/flywheel on cdi question http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=74773 |
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| Author: | mizzippi jb [ Sun Dec 08, 2019 8:18 am ] |
| Post subject: | Coils/flywheel on cdi question |
Saw a boat for sale browsing my wife's Facebook. 2013. Briggs. Stage 2. Builder sheet said 20 amp charging syetem with cut flywheel and advanced timing. So on a cdi the charging is 2o/50 and the coils limit rpms. I'm assuming if you mess with the flywheel and/or advance timing that you are reverting back to non cdi charging and doing away with Rev limit? Thx Sent from my SM-G973U using Tapatalk |
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| Author: | mizzippi jb [ Sun Dec 08, 2019 8:54 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
This Sent from my SM-G973U using Tapatalk |
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| Author: | cb5331 [ Sun Dec 08, 2019 10:02 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
| Author: | GNSPEED [ Sun Dec 08, 2019 10:24 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
On a cdi system they are rebroaching flywheel and using non cdi coils which still allows 20/50 charging and no rev limit |
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| Author: | Will [ Sun Dec 08, 2019 11:39 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
| Author: | mizzippi jb [ Sun Dec 08, 2019 4:24 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Any reason to shy away from a motor that this has been done to? Seems as though he's made everything revert to the the old 20 amp charging. I know what advancing the timing does in regards to sparking faster during the stroke but just not familiar with any instances (personally) in the Briggs world Sent from my SM-G973U using Tapatalk |
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| Author: | cb5331 [ Sun Dec 08, 2019 6:05 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
| Author: | mizzippi jb [ Sun Dec 08, 2019 6:11 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Well cb that's kinda the problem. Dude doesn't know what he's got. Ricky Aucoin (, the boat builder) built the motor and he bought it from him. I told the guy to put me in touch with Mr. Aucoin so I could talk directly to him. Motor has less than 80 hrs. So if I can talk to R A, I might be looking at it seriously. Guy is trying to find his contact info, but if anyone has it from mmt, please send it my way. Thx! Sent from my SM-G973U using Tapatalk |
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| Author: | cb5331 [ Sun Dec 08, 2019 6:18 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Don't know how close you are, but would be pretty easy to check with a volt meter. The 0/20 will have no charging at idle and will slowly climb as you lean on the throttle. I'm sure there is an easy telltale on the rectifier too. If he could post a pic, someone who spent any time at all messin with em would know the difference pretty quickly. It would not make a ton of sense to cut the flywheel AND switch to the old charging system. If you wanted the old coils and old charging system, you would just use the old flywheel too. I don't even think the 0/20 system will function with the newer flywheel. Sent from my SM-T710 using Tapatalk |
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| Author: | mizzippi jb [ Sun Dec 08, 2019 6:23 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Therein lies the issue. I be in Ga (and Arkansas a good bit this time of yr) This guy lives 30 min north of Houston TX Sent from my SM-G973U using Tapatalk |
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| Author: | Russ [ Sun Dec 08, 2019 6:41 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Get him to take a picture of the regulator. Itll have a red wire and either 2 or 4 yellow wires coming out of it. If it has 4, it's the 20/50. I find it highly unlikely they cut the flywheel, swapped the coils, and then put the old 20a alternator in and not swap the regulator, so if you see 4 yellow wires, it's the 20/50 charging system. #CFFITR #GhostBoat #Whoneedsphysicsihaveamudmotor |
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| Author: | mizzippi jb [ Sun Dec 08, 2019 7:48 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
2 yellow, 1 white. Def a 20 amp. So did they even make a 20 amp non cdi in 2013? Sent from my SM-G973U using Tapatalk |
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| Author: | banded-mallard [ Mon Dec 09, 2019 6:01 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
The one thing that it to worry about the older systems or having a NON-CDI engine is like others mentioned the lack there of a rev limit. Depending on the dumbass on the throttle, over rev'n the engine with stock internals is never good. Would definitely check changing system like others mentioned as well as leak down test for any valve issues. It really doesn't matter if it is non cdi, I ran my for years with no limiter. depending on the "mods", it may never get to 5000 unless he hit a sandbar or something. |
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| Author: | mizzippi jb [ Mon Dec 09, 2019 6:33 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Dude don't know what he's got. Can't answer any of my questions and now saying it's a 2010 frame and a 2013 motor. I'm out Sent from my SM-G973U using Tapatalk |
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| Author: | banded-mallard [ Mon Dec 09, 2019 9:29 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
one thing JB, if it is indeed converted back to a non cdi, and he does have the .310 or basically the old MOD 1, if you stick a 6* timing key in it, it will be a beast at .050" decking and if the ports look good. I wouldn't walk completely away before doing some digging. |
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| Author: | mizzippi jb [ Mon Dec 09, 2019 9:34 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Well that's the thing. He can't answer any of my questions and I have no way to talk to the guy who built it. Ricky Aucoin. Hard to deal with a guy who bought a motor but knows absolutely nothing about what he has. Sent from my SM-G973U using Tapatalk |
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| Author: | mizzippi jb [ Mon Dec 09, 2019 9:39 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
It's on a Facebook post I found on my wife's acct. Dude has a 16 60 go devil hull. 07 I think. Says the boat hits 41 with new prop. 36 with wore out. So you can see why I'm a little concerned [GRINNING FACE WITH SMILING EYES] Sent from my SM-G973U using Tapatalk |
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| Author: | banded-mallard [ Mon Dec 09, 2019 9:45 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
ah yeah, no prodrive is hitting that, gears limit that. I've hit 35 bumped 36 with my older briggs non cdi but was scared to hold it there due to stupid rpms. |
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| Author: | Will [ Mon Dec 09, 2019 6:18 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
I don't know about that SD, I'm 99% sure the motor I have now would push my old boat to the 40mph zone. It ran 35 with a 4750 limit. If he's spinning it up, it'll get there. The rods would be my concern, everything else is the old school works for higher rpm. |
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| Author: | mizzippi jb [ Mon Dec 09, 2019 6:24 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
Will you remember my old pd and 1644 go devil hull. That thing was super heavy and a round chine. Rode pretty deep in the water in the back. The motor on this boat is a Gator tail, but I can't see any lawn mower motor pushing a boat like that ("round chine and cut back transom) anywhere sniffing 40 Sent from my SM-G973U using Tapatalk |
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| Author: | banded-mallard [ Tue Dec 10, 2019 5:59 am ] |
| Post subject: | Re: Coils/flywheel on cdi question |
| Author: | Will [ Tue Dec 10, 2019 7:11 pm ] |
| Post subject: | Re: Coils/flywheel on cdi question |
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