Recommendations for ignition module
Suggestions on what to buy / what to stay away from?
Tips on typical gotchas etc for this project?
Last edited by Z; Aug 23, 2022 at 12:05 PM.
While an expensive upgrade, the ThunderMax #309-313 is compatible with the '99-'01 MM EFI in the touring bikes..
https://www.thunder-max.com/Products...ms309-313.aspx
Whatever you decide on, I hope you have a friend in an adjoining state to CA.... It's almost impossible to get a vendor to send a non-EPA or CARB approved product to a CA address these days...

Last edited by hattitude; Aug 24, 2022 at 11:18 AM.
And yes, being i CA does present challenges!
That has a been a problem for years..... There are far too many of them around... But no one seems to talk about the incompetent dyno operators...
Everybody says, "Dyno tune is the best way."
I advise, "Dyno tune by a competent dyno operator is the best way."
Many skip the part about "competent dyno operator". There are more than a few hacks out there...
Several years ago, I went to a class at DynoJet in Las Vegas. It was about tuning with a PowerVision tuner. I was the only civilian in the class. All the other students (about 24 in all) were working in the PowerSports industry. Most were currently doing dyno tuning. Most also used the DynoJet 250i dynamometer in their business.
Many were knowledgeable and seemed more than competent. There were about 4 stand outs that were obviously at the head of the class. I'd let them tune my bikes anytime, anywhere.... And yet, there were a couple that, based on their questions, had a weaker understanding of dyno tuning than I did. I remember thinking, "Good God, they have been tuning people's bikes...!"
Last edited by hattitude; Aug 24, 2022 at 04:07 PM.
EFI and computers have made it much harder to change stuff on a bike,in a lot of cases. One that annoys me is they just change something exhaust/intake then throw more fuel at it, instead of actually measuring AFR at a given rpm to determine what is best for that particular engine at the altitude that it operates at. When dealing with a stock or modified carbed bikes they certainly can have a lean spot, but in a lot of cases just adjusting the mixture screw makes all the difference. When tuning that is where one should start first. If that doesn't cure the lean spot, then look at a bigger pilot jet, different needle etc. You don't have to do a plug chop, but at least ride the bike for a bit between changes, notice if there are any lean spots, have a look at the spark plugs and go from there. When tuning you are looking for a light tan color at the base of the porcelain in the spark plug.
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I have made up my own tuning map and it took awhile to get it set set just the way I like it but I am really happy with the ThunderMax. I did at first just download fuel maps off of the ThunderMax web site when I first got it. I found that most of their maps are set up for Max Hp. I started with my 88 and ran their maps and then went to a 107 and ran their maps and was not happy with them and so I started to make my own adjustments. When I went to a 110 I decided to start from scratch and made my own map and then started fine tuning that until I had it right where I liked it. The 110 runs fantastic, good fuel milage and a ton of power. Runs great throughout all the rpm ranges.
ThunderMax would be the way to go especially if you plan future upgrades. Just need a laptop. I have a laptop that is dedicated just for tuning my bike and for running Diagnostics and coding on my Audi
Bruce
I have made up my own tuning map and it took awhile to get it set set just the way I like it but I am really happy with the ThunderMax. I did at first just download fuel maps off of the ThunderMax web site when I first got it. I found that most of their maps are set up for Max Hp. I started with my 88 and ran their maps and then went to a 107 and ran their maps and was not happy with them and so I started to make my own adjustments. When I went to a 110 I decided to start from scratch and made my own map and then started fine tuning that until I had it right where I liked it. The 110 runs fantastic, good fuel milage and a ton of power. Runs great throughout all the rpm ranges.
ThunderMax would be the way to go especially if you plan future upgrades. Just need a laptop. I have a laptop that is dedicated just for tuning my bike and for running Diagnostics and coding on my Audi
Bruce
The only down-side I see to going with the ThunderMax is that I (believe) that I then become locked into the existing Magneti Morelli FI system on my 2000. If I later decide to do a Delphi upgrade or switch to carbs, I think the T-Max controller will become a thousand dollar brick (though I suppose I could sell it.) I'm still very strongly leaning toward it tho. I had an engine failure a few years back that led to a rebuild with some performance upgrades and the bike has *never* run acceptably well since, even after two dyno sessions.







