What does engine knock sound like?

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Aug 19, 2010 | 09:18 AM

#11

Hillsidecycle.com

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Joined: Dec 2007

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Gotta believe that timing, or rate of advance, needs to be pulled back a tick.
Scott

Aug 20, 2010 | 02:41 AM

#12

Stylz

4th Gear

Joined: Jun 2009

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Quote:

Originally Posted by leadsled70

I know this is an old thread but I will try anyhow. Stylz, did you ever figure out your peoblem with the engine noise?

Yes, the consensus I get from everyone is turn up the radio, or buy louder pipes!

These are air-cooled ancient machines in a way, and thus, do different things at different times, for no rhyme or reason to the beginner.

What I can say, with more specificity is, the bike definitely runs rougher in 1st gear (pulling away from a stop) when it's hot. It's not a small difference. I assume it has something to do with some metal bits swollen in the heat, and not 'sliding' as easily as they should. I have to use more throttle to get it to go, and not bog down or stall.

It's very predictable -- it only does that when the bike is hot, and I'm starting from a stop. At the same time, in the same conditions, if I turn the bike off, and try to start it again hot, the starter doesn't turn very well. I first thought the battery was toasted, until I started noticing the 'hot' correlation. Anytime the engine's real hot, the engine doesn't turn over well; it starts every time (so far), but it feels like it might not.

Good luck,

]{evin