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SgnDen
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« on: November 08, 2021, 12:59:54 PM » |
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I just had the '98 I bought given the once-over by a local shop and when I got it back, I went for a 3 hour ride. I noticed very quickly that it is idling at ~1100 - 1200 RPM which is clearly too high. I haven't looked for an idle adjustment knob yet but I'd imagine it's in there somewhere!  What should that engine idle be set at? I'm guessing ~900...? Thanks! |
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"Ask me about my ADH.....Hey, look! It's a squirrel!"
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Jess from VA
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« Reply #1 on: November 08, 2021, 02:16:59 PM » |
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If you set the bike at 900-1000 soon after startup, it will end up at 11-1200 after it's warmed up. Every time.
Setting it soon after startup means no burned fingers (this is what your shop did), but doing it after warmup will absolutely burn your fingers without a tool or heavy glove (working fast).
My idle adjustment wheels don't like to turn easily.
I do it cold. Then I note where it ends up hot, and turn it down a little next time it's cold. Eventually, I get it right.
BTW. The bike may not be charging at 900, but it is at 1000. Not that you want to sit at idle for long periods for any reason.
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klb
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« Reply #2 on: November 08, 2021, 02:44:43 PM » |
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If you set the bike at 900-1000 soon after startup, it will end up at 11-1200 after it's warmed up. Every time.
Setting it soon after startup means no burned fingers (this is what your shop did), but doing it after warmup will absolutely burn your fingers without a tool or heavy glove (working fast).
My idle adjustment wheels don't like to turn easily.
I do it cold. Then I note where it ends up hot, and turn it down a little next time it's cold. Eventually, I get it right.
BTW. The bike may not be charging at 900, but it is at 1000. Not that you want to sit at idle for long periods for any reason.
You got that right on the burn. First time I set mine on the 99 it was at full operating temperature. I could have sworn I smelled Bacon frying.  Plan B from then on. |
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SgnDen
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« Reply #3 on: November 08, 2021, 03:04:26 PM » |
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Thanks for that. Mine is definitely idling too high. I haven't owned a carbureted bike in 25 years so I figure I'm due for some burns.
Here's a question proving that I'm more than little behind with things like idle set knobs...Turn left for lower RPM and right for higher RPM? Since I'll start with it cold, it'll help to know in advance vs during running.
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"Ask me about my ADH.....Hey, look! It's a squirrel!"
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Jess from VA
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« Reply #4 on: November 08, 2021, 03:10:51 PM » |
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I believe you have it right.
Thumb it down (left) about half a quarter turn cold, and see where it ends up hot.
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SgnDen
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« Reply #5 on: November 08, 2021, 03:26:02 PM » |
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I believe you have it right.
Thumb it down (left) about half a quarter turn cold, and see where it ends up hot.
Will give that a shot tomorrow morning. |
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"Ask me about my ADH.....Hey, look! It's a squirrel!"
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John Schmidt
Member
Posts: 15199
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #6 on: November 08, 2021, 04:05:42 PM » |
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I set it hot, easy peezy. Just use a screwdriver to reach in and press against the protrusions on the knob. If it doesn't want to turn, get a second screwdriver to help turn it in the direction desired.
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SgnDen
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« Reply #7 on: November 08, 2021, 04:12:38 PM » |
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I set it hot, easy peezy. Just use a screwdriver to reach in and press against the protrusions on the knob. If it doesn't want to turn, get a second screwdriver to help turn it in the direction desired.
Like screwdriver chopsticks...perfect. |
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"Ask me about my ADH.....Hey, look! It's a squirrel!"
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John Schmidt
Member
Posts: 15199
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #8 on: November 08, 2021, 06:42:25 PM » |
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The knob location relative to the intake runners lets you lightly pry against the runners on either side with the screwdriver stuck behind one of the protrusions. If it's difficult to move, just take the second driver and push a bit while trying to move the knob with the other. Works in either direction.  |
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Jess from VA
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« Reply #9 on: November 08, 2021, 06:53:33 PM » |
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The knob location relative to the intake runners lets you lightly pry against the runners on either side with the screwdriver stuck behind one of the protrusions. If it's difficult to move, just take the second driver and push a bit while trying to move the knob with the other. Works in either direction. This sounds suspiciously like how my dentist works on my teeth. |
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John Schmidt
Member
Posts: 15199
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #10 on: November 09, 2021, 08:41:00 AM » |
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The knob location relative to the intake runners lets you lightly pry against the runners on either side with the screwdriver stuck behind one of the protrusions. If it's difficult to move, just take the second driver and push a bit while trying to move the knob with the other. Works in either direction. This sounds suspiciously like how my dentist works on my teeth. I don't have that problem Jess, I handle my teeth like my car...drop them off and pick them up later in the day. Yether...it workths jush fine! Rita did make me quit putting them in the dishwasher some years ago.  |
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Mooskee
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« Reply #11 on: December 01, 2021, 10:36:58 AM » |
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Idle setting in Honda manual is 900+/- 100  If you put a bit of lubricant on the adjuster screw where it contacts the tab on the #3 carb, it makes it a bit easier to turn. I use spray lithium grease. |
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Mooskee
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« Reply #12 on: December 01, 2021, 10:39:40 AM » |
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Screwdriver chopsticks work pretty well too.
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