I had done some basic repairs (replaced the oil filter, did oil change, replaced battery) because of a problem with the bike dying suddenly after my first long ride (less than 2 hours) and before I got the safety inspection finished. Because the oil warning light came on I changed the oil and replaced the oil filter and since the battery was quite dry I replaced it with the exact model that was being used as recommended at the local parts store (a Canadian Tire).
It's a bit of a long story but the problem developed on a long ride (about 6+ hours of riding with some brief stops) from Ontario to Quebec (in central Canada) I experienced some major problems when we ran into very slow traffic and I was stuck in 1st gear starting and stopping following a long stretch of highway driving). The bike had run great on the highway at 60+ km/hr until this point but then it started revving very high cutting out sporadically. At this point luckily I was able to get it into a uhaul trailer and tow it the rest of the way back to Halifax, Nova Scotia.
I had a retired aircraft mechanic give me some advice and help to re-adjust the clutch lever and it is running fine in first (and all other gears) but when it is in neutral or the clutch is engaged the idle is very poorly regulated. I rarely have a problem the bike stalling anymore but once the engine is warmed up it is not uncommon for it to be idling all the way up to 3,000 rpm (I have the owners and service manuals which recommend an idle of 1,000-1.200 rpm).
Although this was not ideal I was still riding the bike on a short commute to work with minimal issues. Then I took it for a longer ride (~70 mins each way with ~45 mins break) and the next day on the way to work, after warming up the bike and running it for ~10 mins, it was suddenly idling all the way up at 5,000 rpm in neutral!
After doing some basic research I am going to make a go at adjusting the pilot screw and possible the air flow screws to try and retune the idle to the recommended setting. I'll let you know if I get anywhere.
Otherwise I have read that the high idle could be related to air leaks and getting new carb diaphrams might be a good idea, anyone have any opinions on this?
(for example from https://www.carburetordiaphragms.com...-carburettors/)
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