Chain / Sprocket Trouble

I have had my CAG for a while and i love it speed and acceleration are very nice, however i have done a few mods.

No engine wear or engine problems at all....

However i have been having trouble lately with my chain it keeps on coming loose and when a mate and I had a look at it the sprocket seemed bent and was forcing the chain to come off.

I ripped my bike apart and removed the sprocket to the eye it doesnt seem like its bent at all, neither is my wheel :? I dont know what it is, but atm it is rendering my bike useless as i cant ride it without the chain coming off and the bike reving out.

Any Ideas?

Thanks in advance.

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49cc CAG:
High Performance Fabricated Exhaust
NGK BPMR7A Racing Spark Plug
Advanced Timing Key
HP Two Spring Adj Clutch
Hi Tensile Bolt Kit
Speedo
Fibre Glass Racing Reeds
Pod Filter
HP Racing Fuel Line
Japanese C3 Rating Barings

mm, ok - check the following -

1. Are the teeth on the sprocket sharp/pointy??

2. Is your chain adjusted all the way back coz its gotten lose?

as Razzor mentioned, are the teeth on the sprocket ok ? also make sure your engine cog is lined up with the rear wheel sprocket, take a look from behind the rear sprocket and gauge by eye making sure the chain is dead straight from topside of the chain and from cog to cog, if you have the original chinese chain it may be time to buy another as these chains do stretch alot causing the space between the rollers to gain length which will cause an upset with the sprockets teeth spacings.

Make sure your engine mounts haven't come loose and the engine shifted slightly or your rear wheel is not aligned to the from sprocket correctly. Look along the top of the chain from behind the bike and see if your sprocket and chain are running true to the front sprocket. Don't forget the chain lube.

Good luck and happy repairs.

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U R never 2 old 2 race

Hey guys,

Yeh ur ideas helped, I actually purchased the Pocket Bike Secrets book last night and that filled me in on a few ideas of how to adjust the engine position etc so that nothing rubs and the chain doesnt fly off. Not a bad e-book if i dont say so myself!!!

Thanks guys.

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49cc CAG:
High Performance Fabricated Exhaust
NGK BPMR7A Racing Spark Plug
Advanced Timing Key
HP Two Spring Adj Clutch
Hi Tensile Bolt Kit
Speedo
Fibre Glass Racing Reeds
Pod Filter
HP Racing Fuel Line
Japanese C3 Rating Barings

try maybe tightening the chain

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Watercooled B1 Rep 40cc
Race Tuned Performance Sports Exhaust
Uni style Air Filter
19mm Dell Orto rep carb kit
Fibreglass reeds
Dual Front Discs

http://s49.photobucket.com/albums/f283/bigkev21/

omg why the hell would you post in a thread that is about 9 months old, how did you even come across the thread?
dont bother if its this old

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Blata B1 Origami
Victory kitted motor
Zocchi 3-shoe carbonium clutch

big kev, have you noticed big imporvements with 19mm carbie ?

what spacer setup do you have and have you had engine work done ? porting etc ?

ok.
1.- check your idle screw, make sure its not idleing to high, which makes it virabrate badly and cause the chain to jump
2.-make sure ur chain links can move freely up and down,(go through all your links and move them up and down)
3.-get a new sprocket
4.- Your wheel isnt align problery
5.- or your chain could be stretched out too much and wen you tighten it,it will only get bigger and make its just pretty much fall off

try these and get back to me

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Project Dark Magician
(All parts from www.ozminimoto.com.au)
Upcoming Mods:

Black Magic Engine Kit
Blue Footpegs
Quick Turn Throttle
Fatboy 316 Exhaust
Cag Black Fairing
70 Tooth Rear Sprocket
7 Tooth US Made Pinion

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