[alehman]

My CB350 is tuned well and idles great cold and warm @ ~1100 RPM. I'm finding though that when I come off the highway or rides where I sustain 5K+ RPM, it won't idle until I give it a little rest. Anyone else experience this? If so, what helped it?

 

[Crashoverride]

Mine drops lower so I just upped idle to about 1400 and then it seems fine when really hot.

 

[dmfcb750]

Check your voltage regulator, then ignitor system.

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[alehman]

I am running the sparck moto R/R and will check my voltage system for any irregularities when I'm back home and have my multimeter. I just set my points timing and gap. They are good but I will check under the cover when I get back home. I'm still not sure how either of these would be related to high speed riding causing a temporary idling problem.

 

[dmfcb750]

When voltage regulators fail, they tend to overheat and kill the spark entirely. It is an easy check. Check the resistance cold then check it again hot and see if it is in spec. The timing advance could be another cause but, not sure. This sounds similar to a regulator issue I had before. Chilton's manuals are great on these bikes.

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[ancientdad]

Chilton's manuals are great on these bikes.

there are many here who would disagree with that statement, but if it works for you...

 

[dmfcb750]

All good but, it has worked for me for years. Their logic, I understand.

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[frogman79]

I don't even bother setting idle or sync or idle mixture for that matter until the bike is up to running temp. Setting any of these while cold ish will most likely just cause the bike to not idle correctly when hot. Or idle too high.

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