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  1. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    I did not fully describe the concept of base ignition timing. It is necessary to decipher/sift through all the information available to get an understanding of what you are searching for to determine a way ahead. The tuners out there that have done this for a while are quite skilled, but do...
  2. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Happy to announce that after many road trials have an engine tune that is "not bad" (perspective) based on tuning the VE (fuel) table and having a "wedge" table for ignition timing. Tuning a motorcycle is the same as a car, but takes longer as table cell values, IMO, are done in single point...
  3. Rednaxs60

    C40 City Initiative

    The tail is wagging the dog! The vocal visible minority - all groups, are being placated in a big way. Much like the EV fad, an additional "plate" fee to cover lost fuel tax revenues is being implemented. EV insurance rates are outpacing that for ICE vehicles. Going to implode.
  4. Rednaxs60

    C40 City Initiative

    Way off topic, but coming to a city near you: https://www.linkedin.com/pulse/americas-c40-cities-ban-meat-dairy-new-clothes-private
  5. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Pidjones - agree wholeheartedly. The coolant specs for the '85 FI model is that the thermostat opens 80-84 degrees C (176-190 degrees F) and fully open at 95 degree C (194 degree F). With the tuning software I can see the engine coolant temperature cycling and the rad fan starting at...
  6. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Next tidbit for the '85/'86 GW FI Model owners, coolant temperature. Coolant temperature affects a lot of features in the OEM CFI ECU. It directly affects Cold Advance (ignition timing during engine warm up). Some of the other features are Cranking Enrichment - the fuel the ECU estimates to...
  7. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Yesterday's road trial (11 Mar 2024) was primarily engine timing, no VE changes. Adjusted COP dwell a point or two. Engine tune is coming into focus. Looked at the tables and looked at the 3D maps. The ignition table is looking good, but the VE table is rustic to say the least. Looked at the...
  8. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    I'm mentioning plugs and coils because there is very little if anything an owner can do to the 1200 engine regarding fuel and timing management. Lots of threads about modifying Timing is set for all 1200 engines and an owner cannot change this. The fuel management of the FI models is set, not...
  9. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Don't know what the issue is, more road trials and spark plug destruction to follow. Depending what I find from the next couple of road trials, this investigation may be a good precursor to individual cylinder fuel control (ICFT).
  10. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Second road trial and looking at the plugs. Engine tune is firming up. Took another set of plugs apart. #1 cylinder is a bit different, and the ground straps indicate that the engine timing may be advanced too much. Reviewed the data log and the engine timing is off. Redid the ignition...
  11. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    We tend to get caught up in new technology when some of the older ways such as posted above, are as relevant today as in years gone by.
  12. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    A short follow up regarding spark plug reading. Took the last road trial plugs apart, and the pugs are an interesting read. Looks like I can lean out the air-fuel mix and the timing is bordering on too advanced. Now I have a good place to start from for the engine tune. Honda did a good job...
  13. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Spark Plug 101 – my understanding of an engine part that doesn’t get a lot of recognition, and more adventures with the new ECU for my ’85 GW. Will be investigating how the plugs are fairing in my '85 GW. Lots of things to consider. These components come in varying sizes, heat ranges, and...
  14. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    There's a lot of engine tune feature(s)/parameters that are interrelated in an engine tune. The first order of business is to get the fuel (VE) table sorted out, then ignition timing, then the AFR table, then integrate all the other features into the engine tune. Required Fuel (RF) tuning...
  15. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Yesterday was a write off, weather did not cooperate for road trials. Good day to peruse the forums for pearls of wisdom regarding engine tuning, barometer sensor install, and such. Found some very good information regarding the four-stroke timing cycle that made sense of the information I have...
  16. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Corresponding with a fellow in the UK. He is reverse engineering the '85 OEM ECU. I believe I have mentioned this previously. He is looking into the programming for the travel computer as well. We are having a conversation regarding the OEM engine timing. Specs are for an idle timing of 10...
  17. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Going to be installing a remote Baro sensor and using one of the OEM CFI PB sensors. Bench tested it today, had done before, and all is well. Will be using an existing ECU 5V and ground circuit, just need to run a signal wire to the ECU. The PB sensor is a ND 179800 sensor, and this sensor...
  18. Rednaxs60

    1985 GL1200 Limited ECU Replacement/Upgrade - Part 3 - Road Trials

    Road trials progressing. As mentioned new to engine tuning, great learning experience. Getting the fuel correct is key so working on the VE table with a few small tweaks to the spark (timing) table. Used the AFR table generator to get an AFR table. Hard to tune the engine scientifically at this...
  19. Rednaxs60

    Ignition Control Module (ICU) Replacement Project for the GL1200 non-FI models

    More thoughts on this type of project. Have most of the components that I think are needed for a pilot project, bench test of such a project. Need a Hall Effect sensor, wouldn't hurt to have a spare available. I have the 36-1 trigger wheel. The 1500 engines have a 12-1 crankshaft trigger...
  20. Rednaxs60

    Ignition Control Module (ICU) Replacement Project for the GL1200 non-FI models

    A bit more information to digest. The NO2C Speeduino interface board is the same size as the Arduino Mega 2560 microprocessor - 8X4X0.2 cis. OpenLogicEFI (previously Detonator) Pre-Ignition X2 assembled - NO2C clone - $99.00 USD w/4 bar MAP sensor installed – QTY 1. Comes with the...
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