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Mikuni tuning
http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=65745		 Page 1 of 1
Author:  SEACHASER [ Wed Feb 10, 2016 2:45 pm ]
Post subject:  Mikuni tuning
Now that asshat Dean is outta here maybe some of the knowledgeable folks can come back and actually add sum input to this once great site! But anyway, just got a Innovate LM-2 AFM and was wondering if its best to tune it under a load on the water or can this be done while sitting on the trailer?
Author:  cb5331 [ Wed Feb 10, 2016 2:48 pm ]
Post subject:  Re: Mikuni tuning
Has to be under load.
Author:  SEACHASER [ Wed Feb 10, 2016 2:51 pm ]
Post subject:  Re: Mikuni tuning
Thought so was just making sure. Thx!
Author:  richard nagon [ Wed Feb 10, 2016 8:28 pm ]
Post subject:  Re: Mikuni tuning
How about your idle and mid range circuits C.b :?:
Author:  cb5331 [ Wed Feb 10, 2016 8:50 pm ]
Post subject:  Re: Mikuni tuning
I do it all in the water, except for idle. Set idle by touch more than with the meter.

I'm no carb guru by any stretch of the imagination, but I'm looking for a smooth transition from circuit to circuit more than anything else. Two distinct needle transitions and then onto the main. I try to make those transitions as smooth as possible while keeping afr in a range I'm comfortable in.

And if that was some kind of loaded question, I don't do work for other people, nor do I tell others what jets to run in their motors so don't have to worry bout me telling people the wrong way to do it. I just learn as I go. It surely can't be any worse than I'd do without the meter. :lol:
Author:  SEACHASER [ Wed Feb 10, 2016 9:13 pm ]
Post subject:  Re: Mikuni tuning
With that being said what is the best AFR to try and tune to for best power and longevity? 12.1-13.5? Just starting with tuning since I just installed my cam.
Author:  Will C [ Wed Feb 10, 2016 10:16 pm ]
Post subject:  Re: Mikuni tuning
Cb has the best answer! At risk of starting a war i will say your looking for mid to low 12s under high load and low to mid 13s at lighter load. 10 different people will be 10 different answers. Your idling around needs to been done by feel since o2 prob isnt gonna work down low.
Author:  deadbird8 [ Thu Feb 11, 2016 6:13 am ]
Post subject:  Re: Mikuni tuning
Err on the side of running rich so you are set up once for all temps and loads- its an air cooled engine. As CB said, the smooth transition off idle is what I was going for and then used the meter to set mid and main jet. I shot for a Lambda reading between 0.85 and 0.90.

Get some Velcro straps and put it on your wiring so you can secure it to your motor while running. Also I found it helpful to secure the meter in the boat while running (Velcro on back of unit so it stayed where I could see it while driving ).
Author:  Will C [ Thu Feb 11, 2016 9:15 am ]
Post subject:  Re: Mikuni tuning
Lamda is the right way to look at things. I bet he is scratchin his head though :D
Author:  Muddslanger [ Thu Feb 11, 2016 5:52 pm ]
Post subject:  Re: Mikuni tuning
Hey guys, I know this is off subject but does anyone remember the website for those carbon air filters?


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Author:  flint87 [ Thu Feb 11, 2016 5:55 pm ]
Post subject:  Re: Mikuni tuning
How the hell do you know if you're ok if you don't have an AFM?


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Author:  cb5331 [ Thu Feb 11, 2016 6:14 pm ]
Post subject:  Re: Mikuni tuning
Read plugs...dyno...feel...hopes and prayers...
Author:  Russ [ Thu Feb 11, 2016 6:28 pm ]
Post subject:  Re: Mikuni tuning
Siliconeintakes.com
Author:  Muddslanger [ Thu Feb 11, 2016 6:54 pm ]
Post subject:  Re: Mikuni tuning
Thanks Russ


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Author:  flint87 [ Thu Feb 11, 2016 7:13 pm ]
Post subject:  Mikuni tuning
Author:  deadbird8 [ Thu Feb 11, 2016 8:29 pm ]
Post subject:  Re: Mikuni tuning
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