New pocket bike HELP plz - PocketBikeForum.com

1swtz24 · 04-02-2008, 08:02 PM

just picked up a pocket bike for my kids... to play around wiht.. brand new in the box from this guy in town (he siad they are direct from china)

had a small crack in the fuel filter.. replaced that. starts fine. idles fine...

runs great on the stand.. but the second its on the ground or any weight on it.. it boggs out and doesnt even move. when it gets throttle..

can some help me

thanks

*Sleeves* · 04-02-2008, 08:24 PM

does the tire spin on stand ? if so , your clutch springs sound to be broken or none exsistant. open the clutch side and see how it looks!

1swtz24 · 04-02-2008, 08:26 PM

yes the tire spins on the stand.. it trys to go. when its off the stand.. but wont

*Sleeves* · 04-02-2008, 08:32 PM

ok , well here what is happening , from what i gather , you bike runs on the same centrifical clutch as a snow mobile , there are three pads that are held in place by springs , that when spun very quickly the pads begin to open and grab on to the clutch bell , in turn , spinning the pinion , then to the chain , which finishes at the rear wheel .
I believe that one of the springs , that holds the pads , has broken off , or is defective . so when you start the bike on the stand , it has no load on it , allowing the wheel to spin freely , hence no stalling , but as you put weight on it , it stops the wheel from spinning as well as the engine from being able to turn over .

pull off clutch housing and bell ( 1 piece ) and take a look , it will be aparent !

1swtz24 · 04-02-2008, 08:35 PM

checked. no broken springs and all 3 are there

*Sleeves* · 04-02-2008, 08:38 PM

And yes , this is typical of a china rep minimoto or pocketbike!
Make sure everything is tight and use locktite ! It is not the sellers fault , but they should back up what they sell

1swtz24 · 04-02-2008, 08:47 PM

what should i tighten?

*Sleeves* · 04-02-2008, 08:56 PM

you will need new springs for it , nothing to tighten . for you it maybe best to ask for a whole new clutch . springs are hell to put on .

1swtz24 · 04-02-2008, 09:06 PM

how much would a new clutch cost?

*Sleeves* · 04-02-2008, 09:10 PM

dunno , i think i used to sell them for 10 or 12 , but i know i was selling stuff REAL cheap!

04-02-2008, 08:02 PM	#1 (permalink)
1swtz24 Pocketbike Beginner Join Date: Apr 2008 My Gallery Real Name: Bill Pocketbikes Owned: 1 Posts: 11	New pocket bike HELP plz just picked up a pocket bike for my kids... to play around wiht.. brand new in the box from this guy in town (he siad they are direct from china) had a small crack in the fuel filter.. replaced that. starts fine. idles fine... runs great on the stand.. but the second its on the ground or any weight on it.. it boggs out and doesnt even move. when it gets throttle.. can some help me thanks

04-02-2008, 08:24 PM	#2 (permalink)
Sleeves Pocketbike Dealer Join Date: Oct 2005 My Gallery Real Name: ??? Pocketbikes Owned: 2 Location: winnipeg Posts: 2,551	does the tire spin on stand ? if so , your clutch springs sound to be broken or none exsistant. open the clutch side and see how it looks! __________________ TRC , Amra , Mra , Smra 06' P1 BMS competition BZM 15.5hp Open 50cc 05' DM Telai - ZPF 18 h.p Open 50cc 08' CBR125r 96' Gsx-r 600

04-02-2008, 08:32 PM	#4 (permalink)
Sleeves Pocketbike Dealer Join Date: Oct 2005 My Gallery Real Name: ??? Pocketbikes Owned: 2 Location: winnipeg Posts: 2,551	ok , well here what is happening , from what i gather , you bike runs on the same centrifical clutch as a snow mobile , there are three pads that are held in place by springs , that when spun very quickly the pads begin to open and grab on to the clutch bell , in turn , spinning the pinion , then to the chain , which finishes at the rear wheel . I believe that one of the springs , that holds the pads , has broken off , or is defective . so when you start the bike on the stand , it has no load on it , allowing the wheel to spin freely , hence no stalling , but as you put weight on it , it stops the wheel from spinning as well as the engine from being able to turn over . pull off clutch housing and bell ( 1 piece ) and take a look , it will be aparent ! __________________ TRC , Amra , Mra , Smra 06' P1 BMS competition BZM 15.5hp Open 50cc 05' DM Telai - ZPF 18 h.p Open 50cc 08' CBR125r 96' Gsx-r 600

04-02-2008, 08:38 PM	#6 (permalink)
Sleeves Pocketbike Dealer Join Date: Oct 2005 My Gallery Real Name: ??? Pocketbikes Owned: 2 Location: winnipeg Posts: 2,551	And yes , this is typical of a china rep minimoto or pocketbike! Make sure everything is tight and use locktite ! It is not the sellers fault , but they should back up what they sell __________________ TRC , Amra , Mra , Smra 06' P1 BMS competition BZM 15.5hp Open 50cc 05' DM Telai - ZPF 18 h.p Open 50cc 08' CBR125r 96' Gsx-r 600

04-02-2008, 08:56 PM	#8 (permalink)
Sleeves Pocketbike Dealer Join Date: Oct 2005 My Gallery Real Name: ??? Pocketbikes Owned: 2 Location: winnipeg Posts: 2,551	you will need new springs for it , nothing to tighten . for you it maybe best to ask for a whole new clutch . springs are hell to put on . __________________ TRC , Amra , Mra , Smra 06' P1 BMS competition BZM 15.5hp Open 50cc 05' DM Telai - ZPF 18 h.p Open 50cc 08' CBR125r 96' Gsx-r 600

04-02-2008, 08:26 PM	#3 (permalink)
1swtz24 Pocketbike Beginner Join Date: Apr 2008 My Gallery Real Name: Bill Pocketbikes Owned: 1 Posts: 11	yes the tire spins on the stand.. it trys to go. when its off the stand.. but wont

04-02-2008, 08:35 PM	#5 (permalink)
1swtz24 Pocketbike Beginner Join Date: Apr 2008 My Gallery Real Name: Bill Pocketbikes Owned: 1 Posts: 11	checked. no broken springs and all 3 are there

04-02-2008, 08:47 PM	#7 (permalink)
1swtz24 Pocketbike Beginner Join Date: Apr 2008 My Gallery Real Name: Bill Pocketbikes Owned: 1 Posts: 11	what should i tighten?

04-02-2008, 09:06 PM	#9 (permalink)
1swtz24 Pocketbike Beginner Join Date: Apr 2008 My Gallery Real Name: Bill Pocketbikes Owned: 1 Posts: 11	how much would a new clutch cost?

04-02-2008, 09:10 PM	#10 (permalink)
Sleeves Pocketbike Dealer Join Date: Oct 2005 My Gallery Real Name: ??? Pocketbikes Owned: 2 Location: winnipeg Posts: 2,551	dunno , i think i used to sell them for 10 or 12 , but i know i was selling stuff REAL cheap! __________________ TRC , Amra , Mra , Smra 06' P1 BMS competition BZM 15.5hp Open 50cc 05' DM Telai - ZPF 18 h.p Open 50cc 08' CBR125r 96' Gsx-r 600

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