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Title: Digi Sync / Pilot Screw Questions Post by: MnM Valk 97 on January 24, 2019, 07:06:19 PM Using Honda manual to set pilot screws; 1 3/4 turns out from lightly seated, warm up, out an additional half turn (using Moto Pro D tool). Using DigiSync as my tachometer, very patiently.
Turned all pilot screws out 1/2 tyrn with no idle change, so initial baseline was 2 3/4 turns out, then adjusted screw in until a 50 RPM drop was seen, then out 1 full turn. Resetting idle to ~900 RPM after each carb adjustment. I did 1, 3, 5, then 2, 4, & 6. By the time I got to #6 I got NO RPM drop, even with the pilot screw fully seated closed. Is this typical/normal/acceptable, or a bad omen? Also, when I'm done with the DigiSync should I remove the battery for long term storage? Thanks in advance. Title: Re: Digi Sync / Pilot Screw Questions Post by: The emperor has no clothes on January 24, 2019, 07:57:46 PM I can't speak to the pilot screw issue. But I removed the battery from my DigiSync because I didn't want it to leak and ruin the DigiSync.
Title: Re: Digi Sync / Pilot Screw Questions Post by: Ricky-D on January 25, 2019, 06:49:58 AM Ok, I feel you must have misinterpreted the instructions in the manual.
After the initial screw setting (1-3/4 turns) and warm up you should individually turn a screw out. (1/2 turn) if no increase in rpms is detected turn it back in to the base setting. Do this separately for each screw (carburetor). If an increase in rpms is detected when you turn a screw out 1/2 turn, then turn that screw out again 1/2 turn. If no increase of rpms is detected then, turn that screw back in 1/2 turn. What you had done is had every carburetor running too richly initially on with all the blanket turning out of the screws. Remember the base line is 1-3/4 turns out from lightly seated. When you are attempting to adjust a single carburetor all the other carburetors should either be at (1) the base line setting, or (2) the final adjusted setting. I hope this helps you to understand. *** Title: Re: Digi Sync / Pilot Screw Questions Post by: MnM Valk 97 on January 25, 2019, 01:13:57 PM Ok, I feel you must have misinterpreted the instructions in the manual. After the initial screw setting (1-3/4 turns) and warm up you should individually turn a screw out. (1/2 turn) if no increase in rpms is detected turn it back in to the base setting. Do this separately for each screw (carburetor). If an increase in rpms is detected when you turn a screw out 1/2 turn, then turn that screw out again 1/2 turn. If no increase of rpms is detected then, turn that screw back in 1/2 turn. What you had done is had every carburetor running too richly initially on with all the blanket turning out of the screws. Remember the base line is 1-3/4 turns out from lightly seated. When you are attempting to adjust a single carburetor all the other carburetors should either be at (1) the base line setting, or (2) the final adjusted setting. I hope this helps you to understand. *** That does help. I was scratching my head over this, but read and re-read a post very recently that came to the conclusion it is done collectively, which made no sense. THIS I can embrace. Thanks SO much for the wisdom. Guess there's no need to take the battery out of the DigiSync quite yet... Title: Re: Digi Sync / Pilot Screw Questions Post by: 9Ball on January 26, 2019, 05:51:05 AM I can't speak to the pilot screw issue. But I removed the battery from my DigiSync because I didn't want it to leak and ruin the DigiSync. Me too. I went to my toolbox to get my laser level and the battery had leaked ruining the tool. This reminded me that the digisync battery needed attention. Glad I remembered before ruining an expensive, unique tool. |