Coil Issues.

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

OK, guys, I have been having issues with the pan. She has not been revving cleanly and misfiring, and backfiring.

I've been told it is going be the coils, then I've been told it's going be the carbs. and get different answers depending on the time of day.

I have removed the carbs and cleaned them, as the idle jets were blocked it seems, and have removed the coils.

secondary resistance is within spec, however, the primary side I am getting a rating of 3.5 ohms.

The Haynes manual says the spec should be between 2.1 and 3.1 ohms.

Would being out by .4 make a big difference?
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Current bike 1991 Honda ST1100 Pan European, 1986 Honda cb350sg (Finished)

Tankie · Crazy Courier Joined: 24 Feb 2017 Karma :

Not really, but you could be on the right track, check for arching and make sure caps and plugs are in good order.
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Nobby the Bastard · Harley Gaydar Joined: 16 Aug 2013 Karma :

Your multimeter probably isn't accurate enough to give a reading within the benchmark anyway.
Coil is probably fine. the usual sign of a failing coil is it stops working when hot and starts fine when its cooled down enough.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

Nobby the Bastard · Harley Gaydar Joined: 16 Aug 2013 Karma :

Have you considered the valve clearances? It's not unknown for clearances to tighten up. The symptoms are poor running and starting when cold but fine when warm.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

jaffa90 · World Chat Champion Joined: 06 Apr 2016 Karma :

What were the condition of the carb diaphragms?

R1stu · Shrek! Joined: 12 Mar 2003 Karma :

Valves gave been on my to do list. Been 20k since last checked.
____________________
Carbon closet tart! https://www.bikepics.com/members/r6stuk/02r6/
Stolen bike. 2000 R1: https://www.bikepics.com/members/r6stuk/00r1/
Current bike 1991 Honda ST1100 Pan European, 1986 Honda cb350sg (Finished)