problem:
my scooter will work fine if i pull the back wheel of the ground, but if i put the scoot on the ground and hit the gas the scoot will not really go anywhere. i know the throttle cable has NOT come lose because when i hit the gas the engine does make a different sound but it almost sound like it gutless and has no compression, however when i lift the scoot up it sound great and will accelerate! it was in the shop, it has a brand new 70cc bigbore kit because i thought maybe the piston or cylinder was losing compression and it was cause the compression was only 75 when it should be 130. i have not had it tested again yet but i think it should have good compression now with a new cylinder head, cylinder, piston rings, reed valve, and new pins in the carb and new float valve in the carb. thats what the shop put in it. i took it out of the shop cause the bill was just getting bigger and bigger.
how the problem started:
i bought it used and trust me i got really screwed over! 50 kms later as i just pulled in the drive way i went to hit the gas again and the engine sounded like it had no power. i had the scoot was driving for about 20 min. it was wide open for a little bit but i only keep it wide open for 1 min or so then i ease off for about 3 min and then wide open again for 1 min. (when i say ease off i mean the throttle is about 3/4 open).
list of new parts:
-70cc athena big bore consits of : piston, cylinder, cylinder head, piston ring, piston clips, reed valve,
-carb needles
-float valve in carb
additional info:
-has 8550 kms
- when i bought it it also has a 70cc atehna big bore
- i find the exaust pipe is putting out more exaust then it should
- scooter smells like gas when you start it
what i think it might be:
i was thinking maybe a torque spring- it behind the clutch and its not the 3 little springs in the clutch its behind the clutch. if its not stiff enough it puts your scoot in a high gear which will flood the carb.
- for some reason its getting to much gas ( i think)
- the day i got the scooter home it was stalling every time i came to a stop. i adjusted air to fuel mixture on the carb and it worked great for the 50km i drove it!
thanks for any advice also what spark plug should i run in it? right now i am running a brand new NGK BR8HS
thanks
my scooter will work fine if i pull the back wheel of the ground, but if i put the scoot on the ground and hit the gas the scoot will not really go anywhere. i know the throttle cable has NOT come lose because when i hit the gas the engine does make a different sound but it almost sound like it gutless and has no compression, however when i lift the scoot up it sound great and will accelerate! it was in the shop, it has a brand new 70cc bigbore kit because i thought maybe the piston or cylinder was losing compression and it was cause the compression was only 75 when it should be 130. i have not had it tested again yet but i think it should have good compression now with a new cylinder head, cylinder, piston rings, reed valve, and new pins in the carb and new float valve in the carb. thats what the shop put in it. i took it out of the shop cause the bill was just getting bigger and bigger.
how the problem started:
i bought it used and trust me i got really screwed over! 50 kms later as i just pulled in the drive way i went to hit the gas again and the engine sounded like it had no power. i had the scoot was driving for about 20 min. it was wide open for a little bit but i only keep it wide open for 1 min or so then i ease off for about 3 min and then wide open again for 1 min. (when i say ease off i mean the throttle is about 3/4 open).
list of new parts:
-70cc athena big bore consits of : piston, cylinder, cylinder head, piston ring, piston clips, reed valve,
-carb needles
-float valve in carb
additional info:
-has 8550 kms
- when i bought it it also has a 70cc atehna big bore
- i find the exaust pipe is putting out more exaust then it should
- scooter smells like gas when you start it
what i think it might be:
i was thinking maybe a torque spring- it behind the clutch and its not the 3 little springs in the clutch its behind the clutch. if its not stiff enough it puts your scoot in a high gear which will flood the carb.
- for some reason its getting to much gas ( i think)
- the day i got the scooter home it was stalling every time i came to a stop. i adjusted air to fuel mixture on the carb and it worked great for the 50km i drove it!
thanks for any advice also what spark plug should i run in it? right now i am running a brand new NGK BR8HS
thanks