Mods for a Bullet..

RDX · 11th April 2007, 16:24

go for mikuni carbs... does wonders on ur performance.... i think it would be more than enough to start with

alpha1 · 15th April 2007, 16:39

Quote:

Originally Posted by swathyd

Once upon a time i used t be die hard fan of bullet. Then my friend told me that his friend got a carb from japan which increased the power as well as mileage( 48kms). He was also telling about new spark plugs.

It sounds contradictory.

Unless the carb radically improves the burning efficieny and does some magic on the transmission losses, you cannot get more power and more fuel efficiency simulataneously.

swathyd · 16th April 2007, 01:54

It was done by a mechanic in nagercoil , his name i think is chokalingam.

overdose14 · 16th April 2007, 02:29

first of all, free flow exhaust (simple remove rear part of exhaust). 2nd enrich fuel/air mixture otherwise chances are that you might end up with cease engine or blown gasket (my brother did that). no matter what you do FE will go down. otherwise changes won't be noticeable.

ac 427 · 12th June 2007, 21:58

Dear all,

I have a 1984 std 350 bull. Want to know what are the performance mods possilble on my bike.

Cheers.

ron_9191 · 13th September 2007, 00:10

Hi, you can start your mods from the airfilter coz the airfilter that comes with your bike seriously is a bad joke. You will have to fix a K&N conical filter. Then change your clutch plates to the bullet 500 ones. That should help you a lot. I tried the same on my Electra 2005 and it works just fine, there is a lot of difference.

simply_sunny001 · 13th September 2007, 12:01

Quote:

Originally Posted by ron_9191

Hi, you can start your mods from the airfilter coz the airfilter that comes with your bike seriously is a bad joke. You will have to fix a K&N conical filter. Then change your clutch plates to the bullet 500 ones. That should help you a lot. I tried the same on my Electra 2005 and it works just fine, there is a lot of difference.

Can u please tell the part number of the K&N filter that u used in ur bull

also,how much performance increase u have noticed after these mods

pics and prices will be very much appreciated

Thanks

prkshv · 13th September 2007, 19:01

i had asked about this to the K&N dealer here. he said if you put a conical (free-flow performance) air filter on the stock engine, it would suck in more cold air than the engine requires. it will be fine in low throttle but once you start rippin there will be problems. i suggest you either go for a simple stock replacement K&N that comes for the machismo. Or go the whole way... get the performance conical K&N air filter, get faree flow exhaust (thats like just a pipe), fix bigger jets... it will take off i tell you. maybe you could get a suicide shift to go with the extreme modifications, then it will be ek dhum kick ***.

cheers!

renamo · 21st September 2007, 14:58

Quote:

Originally Posted by prkshv

i had asked about this to the K&N dealer here. he said if you put a conical (free-flow performance) air filter on the stock engine, it would suck in more cold air than the engine requires. it will be fine in low throttle but once you start rippin there will be problems. i suggest you either go for a simple stock replacement K&N that comes for the machismo. Or go the whole way... get the performance conical K&N air filter, get faree flow exhaust (thats like just a pipe), fix bigger jets... it will take off i tell you. maybe you could get a suicide shift to go with the extreme modifications, then it will be ek dhum kick ***.

cheers!

This is so funny
"Sucking more air than needed", hahahaha
extreme modification = a filter, jets and a "just a pipe" like exhaust..

ROTFLMAO..

kchatt · 21st September 2007, 18:34

Modify a bullet !!!!!!
The list is endless
Simple ones
1. K&N Air filter
2. 500 cc 4 plate clutch
3. Change the main jet
4. Fit a glass wool filled silencer
Complex
1. Change the front sproket (15 tooth if you want to rip from stop and 17 if you want the power at the top gear)
2. Change the existing bushes in the engine with gun metal ones
3. Change the bearing to needle type bearings rather than ball bearing (I had SKF imported ones)
4. Polish the head so that the head sits without a head gasket
5. For extra lubrication use a oil pump from a 500 cc or a 535 cc

Want more ?????

Happy modding

Gordon · 21st September 2007, 22:57

Quote:

Originally Posted by kchatt

2. 500 cc 4 plate clutch

What exactly are the benefits?

Quote:

Originally Posted by kchatt

4. Fit a glass wool filled silencer

Could you stress more on this?! Two people have already told me something related to this. Told me that the "valves would fry". I've fitted an upswept Goldstar silencer on my Bullet, and have upsized the main jet. My mechanic tells me that nothing will go wrong since I've upsized the main jet.

ac 427 · 22nd September 2007, 01:54

Quote:

Originally Posted by kchatt

Modify a bullet !!!!!!
The list is endless
Simple ones
1. K&N Air filter
2. 500 cc 4 plate clutch
3. Change the main jet
4. Fit a glass wool filled silencer
Complex
1. Change the front sproket (15 tooth if you want to rip from stop and 17 if you want the power at the top gear)
2. Change the existing bushes in the engine with gun metal ones
3. Change the bearing to needle type bearings rather than ball bearing (I had SKF imported ones)
4. Polish the head so that the head sits without a head gasket
5. For extra lubrication use a oil pump from a 500 cc or a 535 cc

Want more ?????

Happy modding

Hey that was very usefull.

v1p3r · 22nd September 2007, 04:05

Quote:

Originally Posted by kchatt

4. Polish the head so that the head sits without a head gasket

WHAT?!

narenanatwentytwenty

speedcrazy · 22nd September 2007, 15:02

Skimming and polishing your head and trying to run without a gasket is a bad idea, leaks will happen.

To increase compression the ideal way is to mill the head as well as the top lip of the cylinder sleeve. Don't go too far unless you intend to use some really high octane fuel. The bike also becomes a lot less forgiving to bad fuel.

In addition to the above mods best bang for your buck can be had by porting, correcting and polishing the inlet and exhaust ports and reshaping the swirl chamber slightly.

Be sure to get this done by a professional tuner and at a good machine shop

darrenjpinto · 5th January 2009, 21:26

Hi guys, my 2 pence worth. Performance mods are indirectly proportional to efficiency. Now the stories you hear about someone changing an airfilter and getting more milleage as well as better performance, well when you do change an air filter or fit a free flow exhaust you bike will run lean and hence screw up your engine. So if you have to do something start with the short muffler, then upsize jets (both pilot and main) and change the airfilter. If you can then change the carb but putting a bigger carb means one has to increase the size of the inlet port, while doing all this dont forget to add a high output oil pump, change to better pushrods and valve springs.

11th April 2007, 16:24	#46
RDX Newbie Join Date: Apr 2007 Location: Pune Posts: 3 Thanked: 0 Times	go for mikuni carbs... does wonders on ur performance.... i think it would be more than enough to start with
	() Thanks

16th April 2007, 01:54	#48
swathyd BHPian Join Date: Mar 2007 Location: thiruvananthapuram Posts: 774 Thanked: 26 Times	It was done by a mechanic in nagercoil , his name i think is chokalingam.
	() Thanks

16th April 2007, 02:29	#49
overdose14 BHPian Join Date: May 2006 Location: Brampton,Canada Posts: 159 Thanked: 2 Times View My Garage	first of all, free flow exhaust (simple remove rear part of exhaust). 2nd enrich fuel/air mixture otherwise chances are that you might end up with cease engine or blown gasket (my brother did that). no matter what you do FE will go down. otherwise changes won't be noticeable.
	() Thanks

12th June 2007, 21:58	#50
ac 427 Senior - BHPian Join Date: Oct 2005 Location: Mumbai Posts: 1,424 Thanked: 464 Times View My Garage	Performance mods for bullet !!! Dear all, I have a 1984 std 350 bull. Want to know what are the performance mods possilble on my bike. Cheers.
	() Thanks

13th September 2007, 00:10	#51
ron_9191 BHPian Join Date: Aug 2007 Location: Toronto Posts: 390 Thanked: 302 Times	Performance mods for the bullet.. Hi, you can start your mods from the airfilter coz the airfilter that comes with your bike seriously is a bad joke. You will have to fix a K&N conical filter. Then change your clutch plates to the bullet 500 ones. That should help you a lot. I tried the same on my Electra 2005 and it works just fine, there is a lot of difference.
	() Thanks

13th September 2007, 19:01	#53
prkshv Newbie Join Date: Apr 2006 Location: Cochin Posts: 1 Thanked: 0 Times	be carefull with the K&N! i had asked about this to the K&N dealer here. he said if you put a conical (free-flow performance) air filter on the stock engine, it would suck in more cold air than the engine requires. it will be fine in low throttle but once you start rippin there will be problems. i suggest you either go for a simple stock replacement K&N that comes for the machismo. Or go the whole way... get the performance conical K&N air filter, get faree flow exhaust (thats like just a pipe), fix bigger jets... it will take off i tell you. maybe you could get a suicide shift to go with the extreme modifications, then it will be ek dhum kick ***. cheers!
	() Thanks

21st September 2007, 18:34	#55
kchatt BHPian Join Date: Jul 2007 Location: Hyderabad Posts: 39 Thanked: 4 Times	Modify a bullet !!!!!! The list is endless Simple ones 1. K&N Air filter 2. 500 cc 4 plate clutch 3. Change the main jet 4. Fit a glass wool filled silencer Complex 1. Change the front sproket (15 tooth if you want to rip from stop and 17 if you want the power at the top gear) 2. Change the existing bushes in the engine with gun metal ones 3. Change the bearing to needle type bearings rather than ball bearing (I had SKF imported ones) 4. Polish the head so that the head sits without a head gasket 5. For extra lubrication use a oil pump from a 500 cc or a 535 cc Want more ????? Happy modding
	() Thanks

22nd September 2007, 15:02	#59
speedcrazy Newbie Join Date: Jun 2006 Location: Bangalore Posts: 20 Thanked: 0 Times	Skimming and polishing your head and trying to run without a gasket is a bad idea, leaks will happen. To increase compression the ideal way is to mill the head as well as the top lip of the cylinder sleeve. Don't go too far unless you intend to use some really high octane fuel. The bike also becomes a lot less forgiving to bad fuel. In addition to the above mods best bang for your buck can be had by porting, correcting and polishing the inlet and exhaust ports and reshaping the swirl chamber slightly. Be sure to get this done by a professional tuner and at a good machine shop
	() Thanks

5th January 2009, 21:26	#60
darrenjpinto Newbie Join Date: Nov 2008 Location: Bangalore Posts: 7 Thanked: 0 Times	Mods Hi guys, my 2 pence worth. Performance mods are indirectly proportional to efficiency. Now the stories you hear about someone changing an airfilter and getting more milleage as well as better performance, well when you do change an air filter or fit a free flow exhaust you bike will run lean and hence screw up your engine. So if you have to do something start with the short muffler, then upsize jets (both pilot and main) and change the airfilter. If you can then change the carb but putting a bigger carb means one has to increase the size of the inlet port, while doing all this dont forget to add a high output oil pump, change to better pushrods and valve springs.
	() Thanks