Saturday, January 29, 2005

2003 Yamaha Majesty F1 -125 cc fuel injection problems.

Before buying Yamaha fuel injection scooters (whether Majesty or the newer Cygnus SR F1), there is a note to consider. Due to the small displacement of these engines (125 cc) and the sake of lowering costs, Yamaha engineers have left out an fuel/air ratio sensor at the exhaust. This results in needing to tune the air/fuel mixture computer for the fuel injection during EACH oil change...which is not noted in the instruction manuals. Yamaha notified stores to tune the engines during each oil change. But because each Yamaha resale store are individually owned, service quality varies. Therefore, owners of scooters have to remind the stores to tune it while changing the oil. Even though the service is suppose to be free, you know...its best to endorse other services to make sure they did the job right. FYI: what happens if you don't tune it? The engine will die everytime you release the accelerator (eg. at the red light, slowing down, etc.).

Besides the engine, the only other complaint is that the compartments under the seat is not big enough for 2 helmets even though it can carry 2. I have to fit my rain coat and gloves in the front glove compartment and put my locks in the compartment under the seat. With the locks in the seat compartment, 1 heltmet will hardly fit in it. So consider this point if you require to carry large loads. Otherwise its a great getaway scooter...(for getting away from whatever).

4 Comments:

Blogger Den said...

Hi, I was just surfing around and found your page!
Very cool,I didn't know you could find all this interesting stuff.
If you are interested, go see my small motorbike related site.
It isnt anything special but you might still find something of interest.

October 8, 2005 at 10:00 PM  
Blogger Den said...

Hi, I was just surfing around and found your page!
Very cool,I didn't know you could find all this interesting stuff.
If you are interested, go see my small motorbike related site.
It isnt anything special but you might still find something of interest.

October 18, 2005 at 5:17 PM  
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March 29, 2007 at 9:35 PM  
Anonymous ted said...

Hi, I am very surprised at what you wrote about the Majesty fuel injection engine coz' I also own one. Yet, I had never heard of what you said. So...perhaps I should talk to the store to do the adjustment for my scooter next time I change my oil.
BTW, you are so right about the helmets things since that also bothers me a lot. Hope I can share more about the majesty scooter things with you.

August 30, 2007 at 2:42 PM  

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