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Recent loss of power

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The Professor

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on: October 29, 2012, 03:07:57 PM
Recently I have a loss of power on my 150cc R9. I am due for regular maintenance so I am going to start with all new fluids, spark plug, and air filter. I have already cleaned the carb and that helped a little bit. I also removed the autochoke a while back because I was having issues with it. What other things should I be looking at for the power loss? My top speed used to be 70+mph and now I am about 50mph and it is really slow off the line and it was pretty quick before.

harry

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Reply #1 on: October 29, 2012, 05:04:45 PM
your belt might be worn  .
the weights might have flat spots.
 
other than that its carb, air filter and plug like you said..

oilyhans
i own a scooter shop  with rentals ,sales& racing parts.
i also appraise scooters for KBB.

2003 Vino classic stage 0.75
de-reged stock variator w/8g sliding weights.
1.5k rpm  springs
42mph
2005 veniceLX ~70cc~upjet~1.5k rpm springs & 7gr sliders
46mph
KeyWest de restricted~8gr slide

The Professor

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Reply #2 on: October 29, 2012, 06:07:57 PM
Do you know the specs for stock belt and weights?

The Professor

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Reply #3 on: November 14, 2012, 01:43:28 PM
So far I have replaced the air filter, spark plug, engine oil, and tranny fluid but it is still running slow. I am going to clean the carb and replace the weights and belt soon, but life got in the way so I have just been riding slow. It still has more power than a 50cc so it isn't too bad. Still wondering if anybody knows what teh stock weights are and wondering if anybody knows where to get new carb jets.

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