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Old 5th November 2009, 18:42   #1
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Default Bajaj Ct-100 average problem

hi folks,

recently bought a second hand bajaj CT100 2004 for my peon's use (just because i heard its kmpl was good). The bike had clocked 110K.

now even after getting the carburettor etc cleaned & adjusted (authorised bajaj), the bike is not exceeding 30kmpl. Top of it, the bike plainly refuses to start in the mornings. If the choke is applied, it starts and stops immediately when the accelator is pushed.

Would replacing the carburretor help? Any other pointers?..

Last edited by panky12345 : 5th November 2009 at 18:44.
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Old 5th November 2009, 18:47   #2
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Get the bike completely serviced and put in new filters if required. A good clean up and tuning should sort out the issue, realastically mileage should be around 60-70 for this bike under normal usage in city traffic.

Also check the tappet adjustment, timing etc. May be a good idea to get a comp check done to see if the health of engine is ok. More than carb check the float valve and jets, if you need to replace then attack those parts. Rest of the carb rarely fails.

I had one for 2 years

Last edited by Jaggu : 5th November 2009 at 18:49.
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Old 5th November 2009, 18:56   #3
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Thanks Jaggu, What kind of filters? Air - filters? Sorry, am totally newbie to this. (own a bullet).

Edit: What is timing and how does it effect FE?

Last edited by panky12345 : 5th November 2009 at 18:58.
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Old 5th November 2009, 19:27   #4
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Does your bike smokes?does it makes a lot of metal sound from cylinder?if yes then bike needs complete engine overhauling including new pistons and timing, be ready for 6-8K.
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Old 5th November 2009, 19:41   #5
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nope it doesnt smoke much, nor is a lot of sound.
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Old 5th November 2009, 20:08   #6
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Quote:
Originally Posted by panky12345 View Post
bajaj CT100 2004... ...The bike had clocked 110K. ...
phew! 110K ? Think its good to go for engine refurbishment assuming that not much has been done to it recently. Open it up then you know whether to keep the bike or let go.
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Old 5th November 2009, 20:19   #7
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Quote:
Originally Posted by Jaggu View Post
... realastically mileage should be around 60-70 for this bike under normal usage in city traffic.

..
ct100: we have been getting consistent mileage of around 55kmpl for normal city usage. never remember getting anything above 60. might be some problem this particular piece. but do not expect anything great and also 110K seems a lot of usage for the engine. get the engine checked if it requires rework.
i hope you didn't pay too much for your bike. all the best.

Last edited by somspaple : 5th November 2009 at 20:21.
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Old 6th November 2009, 14:33   #8
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just check the exhaust fumes in the morning when you start the bike if it is having a whitish smoke..that would imply that its time for a engine overhaul.Also you can try replacing air and fuel filters.As jaggu suggested try adjusting/replacing timing belt that could also hamper the mileage big time.
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Old 6th November 2009, 18:28   #9
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Quote:
Originally Posted by Rennjit View Post
phew! 110K ? Think its good to go for engine refurbishment assuming that not much has been done to it recently. Open it up then you know whether to keep the bike or let go.
+1 to that. But how did you know it was 110K? (odo will reset after 99999) - Sure it is not 11,000 kms?

Had a CT100 for 2 yrs and 23000 kms - driven carefully, I could eke out 75 km/l. Average was between 55 - 60.

Problem - apart from the engine / air filter mentioned above - could be improper carb setting (running too rich), worn out spark plug (colour of the plug will indicate how the engine is running : black - too rich/oil problem; white - too lean; medium - optimum), sticky clutch.
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