I have a 1999 Suzuki Bandit 1200s. I took my motorcycle to the shop to have some very minor work done on it. The guy their told me I should get a jet kit put in it. I have no idea what that is or what it does. Could someone please explain what a jet kit is and if I should get it or are they just trying to make me spend money?
2007-06-27 11:22:18 · 12 answers · asked by koutetsu12 3 in Cars & Transportation ➔ Motorcycles
It has an aftermarket exhaust.
2007-06-27 11:28:41 · update #1
I bought the bike used with the exhaust already installed. Wouldn't it make sense that he would have done that? Would it be cheaper to just get a stock exhaust and remove the aftermarket?
2007-06-27 11:45:47 · update #2
Yes you want to. The bikes are lean-burning to satisfy emissions laws. The new exhaust makes it leaner which will rob power and burn parts. You'll see a lot more throttle response, but ride responsibly. I watched a good friend become the hood ornament on a Buick.
2007-06-27 11:35:25 · answer #1 · answered by KEN W 2 · 1⤊ 0⤋
Motorcycle Jet Kits
2016-12-10 13:16:16 · answer #2 · answered by janzen 4 · 0⤊ 0⤋
You might!
Do some research on the exhaust. Does it significantly change the flow of the exhaust and the back pressure?
How does your bike ride? Any problems with power, temperature, anything like that?
I bought a bike with an aftermarket exhaust, and it didn't run real well. It came with a jet kit that the previous owner couldn't figure out. I'm having people install it professionally and test it on a dyno as we speak.
If you change one part of the engine system, you probably have to change other parts to compensate.
2007-06-27 13:12:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋
guardrailjim had it right. You only need a kit if it's running wrong! Never fix anything that's not broken. A kit could have already been fitted. Kits are normally fitted if the exhausts are free-er breathing making it run lean. A simple no cost test, take out the plugs and look at the colour. If the colours right then the carbs are! Also if you fit the kit, you then have to balance the carbs again more cost! If you are happy with it stick with it.
2007-07-04 07:52:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋
a jet kit is a pre-packaged set of air/fuel nozzles and directions on how to install them. jets are the little bits of brass that control the air/fuel mixture that enters the intake manifold of your motor.
generally the kits are supplied by a company that has done some testing on your particular vehicle and decided that the settings you will attain with their pre-packaged kit will provide better results than the stock fueling.
as a general rule most vehicles are set up a little lean by the manufacturer to meet emissions standards. they want to use the minimum amount of fuel possible with out causing detonation (pre-ignition of the air/fuel mixture ahead of the flame front inside your cylinder head) in your motor, to be sure that all of the hydrocarbons are burned up and not allowed to enter the atmosphere.
a jet kit will usually let more fuel into the mixture, and can therefore have an effect of improving power. as a general rule, you don't NEED a jet kit in your bike unless you are running very lean and are experiencing power delivery issues with your bike.
if you had changed your airfilter AND airbox AND exhaust to free-er flowing units, then it would behoove you to change the way fuel is delivered to the motor. the faster the air flows through your engine, the more fuel you can safely add to the mixture.
sometimes people say things like you NEED a jet kit, when they really mean that THEY would install a jet kit. people with a little bit of knowledge say crazy things all the time (myself included). if you are happy with your power delivery, your motor is not pinging and you have not made any significant changes in the way your bike pumps air, then leave it alone.
2007-06-27 13:07:37 · answer #5 · answered by patrickh 3 · 3⤊ 0⤋
The Suzuki bandits run slightly lean even from the factory, they did this to be able to pass emmision testing, and noise testing to be legal for sale in the states. if when you are slowing down you hear your engine popping, you are to lean.
Go to www.holeshot.com and they have a very large amount of things for your bike. I would sugjest the Jet kit and the PAIR removal kit for starters, and posibly the timing kit.
If you want to return to the stock exhaust, the bike could still benifit from rejetting.
2007-06-27 12:50:14 · answer #6 · answered by Biker T 5 · 0⤊ 0⤋
if you changed the exhaust, then the carb is probably running lean. You need to change the "jets" in the carb. These control how much fuel is let into the carb to mix with the air. Possible bad things like burned pistons can result. Listen to the mechanic this time.
2007-06-27 11:31:31 · answer #7 · answered by randy 7 · 0⤊ 0⤋
Aside from what everyone explained, ask yourself this question, "Does the bike run to my satisfaction?"
If it doesn't hesitate, bog down at certain RPMs, back fire, turn the exhaust blue or glow red, then leave it alone.
Some exhaust pipes don't require the carburetors to be re-jetted.
And if yours did, the previous owner may have installed a jet kit.
2007-06-27 12:14:34 · answer #8 · answered by guardrailjim 7 · 1⤊ 0⤋
if im correct I think the jets help with the mixture of fuel and air, and your bike will run better. It may have been rejetted when the exhust was installed but the jets maybe wrong. or they just bolted on the muffler for some better sound. i just put pipes on my quad and rode it with out jets, and it wasent very snappy. Once I put the new jets and rode it again and very snappy and better throttle responence.
2007-06-27 12:03:57 · answer #9 · answered by Warren G 3 · 0⤊ 0⤋
If your bike has been modified with an aftermarket exhaust or performance air filter, you may need to rejet your carbs. What happens is, these mods force more air through the engine, and you need to rejet, or adjust your air/fuel mixture to compensate.
2007-06-27 11:26:55 · answer #10 · answered by Anonymous · 1⤊ 1⤋