Question about 2008 Yamaha Zuma
Hi, Paul if you take your bike to a dealer for a specific issue that costs outrageous amounts of money only to have the same problem 2 days later your situation is not unique unfortunately and it is a double edged sword. First, you suffer the emotional stress and frustration of spending all your hard earned "Drachma" and your bike does not get fixed. Second, comes the realization that not only are the technicians incompetent but also the service manager for not doing anything about it, this isn't rocket science, it's a glorified lawn mower engine with extra cylinders and carburetors sometimes. You need to put an end to all the double talk, dancing around the issue, and a "we don't care attitude", but how you ask, very simple you exercise the "nuclear option" go back to the dealer and ask to speak to the owner or general manager if the owner is not there, then with a straight face and polite voice you ask him/her if they can provide you with the name and contact phone number of the person at your brand motorcycle headquarters in your country that can recommend a repair facility that will fix your bike because your local dealer either can not or will not. I guarantee you that is all the grease you need to get someone to light a fire under the proper persons rear end to resolve your issue "toot sweet" For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at firstname.lastname@example.org Good luck and have a wonderful day.
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Posted on May 27, 2017
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Posted on Jan 02, 2017
SOURCE: Cold knock
This is just a suggest, mind you, but if its still under warrenty, I would run it by the dealer, because from what you write, it sounds like a little bit of piston slap.
That engine should be tight.
Posted on Nov 27, 2008
This could be a variety of issue's from over choking, to bad fuel. Make sure your not leaving the choke on to long, as this can foul the plugs. Bad fuel could cause this, as water or other contaminents get into the float bowl and don't affect the enrichment ports due to fuel bypassing the float bowl. This would lead to the bike running worse as the enrichment knob is pushed back in. Last but not lease, could also be an electrical related issue due to the bike warming up and causing a short or open as stuff expands. I would change your plugs, then drain the float bowl into a clear glass jar to examine contents. if fuel and spark seems ok, you will have to look at electrical. plug wires, crank shaft position sensor, coil. It may take someone with the tools to test these components in order to diagnose the issue. If you see that the tach (if you have one) or lights in your display's flicker, it could also be battery related. loose ground. Many possibilities.
Posted on Aug 18, 2009
If the bike has sat for a long period of time without being run - the gas that is sitting in the carb(s) will shellac.. Then the carb(s) would need to be cleaned and "rebuilt"..
Posted on Sep 14, 2009
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