How to get rid of misfiring on my Fiero F2?

ramki067 · 8th May 2009, 16:26

Quote:

Originally Posted by power_slave77

If you want to improve the performance and fuel efficiency of your F2, then change the head and silencer to that of a apache (not apache RTR). It makes hell a lot of difference. The vehicle becomes smoother, faster and more fuel efficient. I have done it on my bike and it is worth every penny. Get it done from Zen motors. They are the best people when it comes to TVS bikes in bangalore.

Thanks power_slave. Can you post some pics of your bike with changed parts?

Thanks,
Ramki

ramki067 · 11th May 2009, 08:43

UPDATE: I installed 100 main jet after much searching and found it in one of the shops in Shivajinagar(Prem Motors), I replaced the spark plug to NGK basic model CR7EI. Thanks to Joel dude, now the misfiring has reduced very much but its not gone completely. I still hear hear some misfiring after around 60Km/hr speed and reduce the acceleration. Any help?

Thanks,
Ramki.

abhijeet080808 · 11th May 2009, 11:48

Why don't you remove the secondary air injection system which leans the circuit? That should help.

fieroid · 11th May 2009, 15:31

TO completely get rid of the misfire,
you need to disconnect the SAI and also richen the pilot circuit. Switch to 15 pilot from the stock 12.5.

power_slave77 · 26th May 2009, 13:46

Here are the pics of my fiero f2 which has the following modifications

1. Alloy wheels of Apache
2. Front forks and disc brakes of RTR
3. Rear shocks of Victor GLX 125 (gas shocks)
4. Round head light of Fiero FX
5. Head of Apache
6. Silencer of Apache
7. Self start of Apache
8. SAI removed
9. 90x90 tyre in the front

ramki067 · 27th May 2009, 13:33

Thanks power_slave77. Will give it a try by removing SAI, meanwhile the engine leak on my bike is on the other side of the pic of engine you displayed here.

saurabhdadhichi · 5th August 2009, 09:51

I am in need of CDI for my TVS Fiero F2 as its been giving frequently starting problem.

The Bike however starts if its pulled for a few feets to gain speed & then put in gear.

Spark Plug, Carburettor, wiring has been checked already & seems to be pretty Ok. Can anyone suggest me where in Delhi can i get a genuine CDI?

11th May 2009, 08:43	#17
ramki067 BHPian Join Date: Sep 2006 Location: BANGALORE Posts: 610 Thanked: 35 Times View My Garage	UPDATE: I installed 100 main jet after much searching and found it in one of the shops in Shivajinagar(Prem Motors), I replaced the spark plug to NGK basic model CR7EI. Thanks to Joel dude, now the misfiring has reduced very much but its not gone completely. I still hear hear some misfiring after around 60Km/hr speed and reduce the acceleration. Any help? Thanks, Ramki.
	() Thanks

11th May 2009, 11:48	#18
abhijeet080808 BHPian Join Date: Jan 2009 Location: Bangalore Posts: 98 Thanked: 330 Times	Why don't you remove the secondary air injection system which leans the circuit? That should help.
	() Thanks

11th May 2009, 15:31	#19
fieroid BHPian Join Date: Mar 2005 Location: bangalore Posts: 706 Thanked: 304 Times	TO completely get rid of the misfire, you need to disconnect the SAI and also richen the pilot circuit. Switch to 15 pilot from the stock 12.5.
	() Thanks

26th May 2009, 13:46	#20
power_slave77 BHPian Join Date: Apr 2005 Location: Bangalore Posts: 37 Thanked: 130 Times	Pics of my bike Here are the pics of my fiero f2 which has the following modifications 1. Alloy wheels of Apache 2. Front forks and disc brakes of RTR 3. Rear shocks of Victor GLX 125 (gas shocks) 4. Round head light of Fiero FX 5. Head of Apache 6. Silencer of Apache 7. Self start of Apache 8. SAI removed 9. 90x90 tyre in the front Attached Thumbnails
	() Thanks

27th May 2009, 13:33	#21
ramki067 BHPian Join Date: Sep 2006 Location: BANGALORE Posts: 610 Thanked: 35 Times View My Garage	Thanks power_slave77. Will give it a try by removing SAI, meanwhile the engine leak on my bike is on the other side of the pic of engine you displayed here.
	() Thanks

5th August 2009, 09:51	#22
saurabhdadhichi BHPian Join Date: Jul 2009 Location: New Delhi Posts: 218 Thanked: 78 Times	Need Help for TVS Fiero F2 I am in need of CDI for my TVS Fiero F2 as its been giving frequently starting problem. The Bike however starts if its pulled for a few feets to gain speed & then put in gear. Spark Plug, Carburettor, wiring has been checked already & seems to be pretty Ok. Can anyone suggest me where in Delhi can i get a genuine CDI?
	() Thanks