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Nasty engine rattle and vibration
- Captainkiwi
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- Timbox
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Just trying to narrow it down a bit. Did you clean the carbs and go through all the electrical connections so there is no electrical connectors that would cause it? Good plugs? What color are they?
Thanks
Long time shade tree wrencher
KZ750 B3 (current Project)
03 B12S
09 KLR650
86 FJ1200
ZX14 (sold)
ZRX1200R (sold) Best bike I have ever owned, need another one
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- AtLarge
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Synched the carbs?
1973 Honda CL70-K3
1975 Kawasaki 350 F9-C
1983 Kawasaki KZ750-K1
1994 BMW K1100RS
2008 Suzuki GSX1300-BKK8 #1120
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- Captainkiwi
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- SWest
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- 10 22 2014
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- wrenchmonkey
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Captainkiwi wrote: When idling it comes and goes and if rattling on start up it goes when bike is put into gear. I'm going to try adjusting the cam today and I'll get back to you once I've done that. It doesn't seem to be a carb issue as it runs fine and starts well. I will pull the plugs today and check for carbon build up as well
I'll defer to the gurus here; Steve has always been a good judge of problems from keyboard's reach.
BUT
This sounds suspiciously like what my '82 550a was doing when I first got it. Cold starts and random idles. I was thinking it was tied to the primary chain (think it's called this) inside which I understand is always in rotation regardless of final drive chain's actions.
On the 550a (at least I am under this belief) you cannot adjust or tension this chain and the cam chain is auto-magic...
Steve advised me back then to review my carb synchronization and when I finally did that and got the idle and choke dialed in, all that noise went away as he stated. I still rarely hear it when it's cold started (hasn't been run in days or longer cold...) but it's usually short duration until the engine warms up for a minute. This I've attributed to my skill, or lack of, at synch'ing the carbs the first time...
Just thinking out loud... It may have no bearing on your model.
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- SWest
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- wrenchmonkey
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Definitely, having the correct manual or even every manual you can find on your particular motorcycle is waaaay worth the time and cost to get them. In my shop, back in the day, we had a long shelf right there in the work bays with all the manuals for everything we worked on. They were all tattered around the edges and you could see at the sides where certain chapters got greasier than others. :laugh: and I for one was happiest knowing the manuals were actually being used by others too. In fact it was those times when a new manual would get added to the shelf; we'd take bets on how long it would be before someone would say "Hey! There's a new manual..." and who would be the one to say it. :laugh:
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- SWest
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- Captainkiwi
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- Captainkiwi
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- SWest
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