Bajaj Pulsar Lovers 2007

[paiseh]

The carburetor is the heart of the engine, which regulates the petrol and air supply and prepares the air+fuel mixture for burning. It mixes approximately 15 parts of air with one part of petrol by weight and creates a fine spray of petrol by means of jets.

 

 

The rider controls the amount of the air+fuel mixture entering the combustion chamber by operating the throttle. When the rider accelerates, a larger volume of the air-fuel mixture is fed into the combustion chamber.

 

The Role of the Valves:

 

Usually a cylinder has two valves. The valve, which allows the air+fuel mixture to enter the cylinder, is called the inlet valve and the valve that allows the exhaust gases to leave the cylinder is called the exhaust valve.

 

During the induction stroke the inlet valve remains open and the exhaust valve remains closed. During the compression stroke both valves remain closed. Both valves also remain closed during the power stroke. On the exhaust stroke, only exhaust valve opens allowing the burnt gases to be forced into exhaust system. This is how valves enable the sequence of the four stroke operation.

 

The opening and closing of valves and the sparking on the plug at the precise moment is obtained by the timing. The timing is governed by timing gears attached to the crankshaft, while the current to the spark plug is regulated through contact breaker points at the distributor.

 

The ignition of the air+fuel mixture inside the cylinder creates tremendous heat. Hence to prevent engine from overheating the engine has cooling as well as lubricating system. In most Indian built bikes, the forced air-cooling system is used, where in the air passes through the fins of the engine, which help in dissipation/dispersal of heat. The lubricating system, on other hand consists of oil which is kept inside the engine block, from where it is pumped around the engine to lubricate (almost 160) moving parts of the engine, Temperature over 700 degrees is produced inside the engine and only part of this heat is utilized to convert it into power. The remaining heat is thrown out through exhaust gases.

[paiseh]

The average ratio for complete fuel combustion (stoichiometric ratio) is 14:1 or about 14 kg of air to 1 kg of fuel.

 

A lean mixture contains more air, while a rich mixture contains less air.

In the case of an air deficiency, the fuel may not be fully used, and it leads to a higher percentage of pollutants in the exhaust gases.

With excess air, power is reduced and engine temperature is higher due to a slower rate of combustion.

[paiseh]

Originally posted by miss@May 20 2006, 01:56 PM

Hi

 

You guys seem to be pro-bajaj.

 

A fren of mine is going to buy a bike that gives gd mileage. I recommended Bajaj but he's a bit reluctant cos the bike is new in SG. He's worried that maintanence might be high since parts might be rare.

 

I have read through some forum and reviews seemed to be gd. The bike is too new to have developed problems.

 

any comments from current bajaj riders regarding maintanence or problems faced?

Bajaj Pulsar debuted on November 14, 2004. There are 2 variants - the Pulsar 180 and the 150, both of which were launched in their newer DTSi avataars recently. DTS-i stands for Digital Twin Spark ignition, which uses two spark plugs to achieve optimum combustion of fuel. This system provides better efficiency and power, while eliminating the need of a catalytic converter to reduce emissions. The Bajaj Pulsar is acclaimed for its handling and is widely popular in India. The Bajaj Pulsar is now the most popular bike in its class. It has moved far ahead of its competitors - primarily the Hero Honda CBZ, the Fiero and the comparitively new Honda Unicorn.

 

If it is a problematic bike, it wouldnt have been the most popular bike in india. it wont be in spore. pls Dun tell me the bike's history is less den 2 yrs to tell if its a problematic bike. usually, it just takes less den a yr for problems of bike to be reported.

[miss]

Thanks guys for the info..

 

Will ask him to visit the forum..

[rocka]

Originally posted by paiseh@May 20 2006, 05:19 PM

The average ratio for complete fuel combustion (stoichiometric ratio) is 14:1 or about 14 kg of air to 1 kg of fuel.

 

A lean mixture contains more air, while a rich mixture contains less air.

In the case of an air deficiency, the fuel may not be fully used, and it leads to a higher percentage of pollutants in the exhaust gases.

With excess air, power is reduced and engine temperature is higher due to a slower rate of combustion.

sounds like a good mechanical student.

 

in fact if we are careful about using 98 and above, which is likely to be Octane purely, we should use 12.5 part air to 1 part fuel for complete combustion and most efficiency. but then again, exhaust will be at risk for handling too hot products and if u have a partner riding at the rear, he or she may take note of that.

 

there's no theory that leaner mixture gives higher FC. say we mix 14 part air to 1 part fuel, energy is absorbed by 1.5 part extra air thus reducing the frequency of power strokes the piston or crankshaft deserves. But FMHO, the less u throttle hard, the longer the fuel lasts. It's because, even you throttle 80% ( for example ) performance may be about 60-70% depending on age of bike. If u increase to 85%, performance go up to 62 or 72 only. Test it out yourself. The amount of throttle needed for a speed up of 90 to 100 needs more than that from 80 to 90.

 

Cheers!

[GoofRider]

neat!

[GoofRider]

i have error trying to up load my personal image and also avatar?

can anyone help me out

[paiseh]

Originally posted by rocka@May 21 2006, 10:16 AM

sounds like a good mechanical student.

 

 

there's no theory that leaner mixture gives higher FC

nope. i just copied n pasted from the net.

 

yes, there is a theory behind it. but wat u said is correct. leaner mixture means less petrol burnt. but tat doesnt mean better fuel consumption. it still boils down to how a rider rides his/her bike.

[paiseh]

ChemLub 15W40 Eng oil, $15 each

Eng oil is ready for collection! Pls contact me at 91873041 to collect! cheers!

 

1. Paiseh - 3xbottles

2. Arivar - 3xbottles.

3. waadee- 2xb

4.

5.

[paiseh]

Originally posted by GoofRider@May 21 2006, 11:13 AM

i have error trying to up load my personal image and also avatar?

can anyone help me out

is the file size too big? the dimensions of the picture u try to upload is also restricted by the server. maybe u could change it first b4 uploading?

[Rafalution]

Wah, this discussion is getting very the "chim" leh, hahaha!

[waadee]

actually iam still not hepi with my carb setting lah... i feel like der is something wrong...

 

for me iam not that particular abt fuel consumption as long as it doesnt get so bad like 30km/l .. now dats bad there is something wrong.

 

so far mine is 40km/l which is very high comparing to stock bajaj.

[Jeffaw]

catch no balls. haha. btw, any 1 of u guy, sticker up ur bike?

[waadee]

brader jeff.. u wanna sticker up eh?? but i scared sticker wont last. wanna make it last have to laqure the damn thing...

[GoofRider]

Paiseh>> u were in bugis jus now at 2pm right.. saw u and your gf on the bike.

[paiseh]

yes i was!!

[waadee]

seems like u guys happen to bump into each oder often eh??

 

broder paiseh i msg u did u receive?? i will collect ye old after 25th ok? will kol u wen i wan to collect

[Arivar]

Paiseh...I'll call or msg u on monday. U got my hp. no. can always msg me. wat u doin after 8?

 

Anybody know of any place where u can design n make ur own stickers?

[etky85]

any good tires for this bike.. cos dun wan the stock tires.. like cub they got dunlop tt900 which is good.. anyone change?

[paiseh]

guys, holiday plaza can customise own stickers. u can haf ur own desing den save it in a thumbdrive. go there print.

 

or u can choose their designs they have over there n mix n match.

 

 

arivar, mon im teaching tuition till 6pm. so im free after tat. might be going over to ah boy buy greese.

[Rafalution]

Originally posted by paiseh@May 22 2006, 09:26 AM

guys, holiday plaza can customise own stickers. u can haf ur own desing den save it in a thumbdrive. go there print.

 

or u can choose their designs they have over there n mix n match.

 

 

arivar, mon im teaching tuition till 6pm. so im free after tat. might be going over to ah boy buy greese.

Me scared of holiday plaza. Heard stuffs about vehicle theft there.........scary! Lost my bike once in JB, never again!

[Jeffaw]

Go jb as a group la.. hmm does it help??

 

I think i make sticker from bro yoshi.. u knw him?

 

Hey we make our club LOGO la.. den we paste it at the front of our fender.

[Jeffaw]

Bro etky85, pulsar main thread is now at SingaporeBikes.com -> Singapore Bikes -> Bikes & Bytes

[cookie_monster]

Originally posted by Rafalution@May 22 2006, 10:26 AM

Me scared of holiday plaza. Heard stuffs about vehicle theft there.........scary! Lost my bike once in JB, never again!

chain all bikes together n install alarm lor.... if still scare add disc lock

[waadee]

bajaj also ppl wan to steal meh?? i tot 1 look and they will not steal...