Motorcycle Repair: My Suzuki GS 450 L, suzuki gs 450, brass pipes

21 Фев 2015 | Author: | Комментарии к записи Motorcycle Repair: My Suzuki GS 450 L, suzuki gs 450, brass pipes отключены
Suzuki GS 450 E

Motorcycle Repair / My Suzuki GS 450 L

Expert: jon ovington —


I have a 1981 gs 450, and I am having trouble up the vacuum hose from the I know that the 2 brass on the inner part of each is for air, but I am not sure where to the vacuum to. And also, when I it, and it is running for a few minutes, if I even the throttle or the choke, it dies. start back up, but it dies.

do you think that would be? you very much



Hi Clint, i am in truth not too with your bike, and were a few different variations on year/month, and country, as to exactly spec it is. However, as to the vacuum i had a look at the fiche for one of the carbs for an 82, the behind that btw is that the 81 didn’t show a carb, and I assume that the carb to the 82 would be pretty much the there are two variations at this though, have a look at a resource here,

if you see in front of the main part of the closest to the intake flange, I see a tube inlet, that seem to be a good bet, really can’t be many options. Has it ever been

The length of the pipe will give you a probable destination, into account any obvious in it’s route that the pipe wants to take, in the plastics world, I believe) As to the problem, that could be to a few things, assuming the vacuum isn’t playing a part in stalling. Which it may well do. to a lot of similar questions, but first, has been altered recently, or replaced, change in use, etc.

Just to give you a pointer in to you might look initially. The obvious is the mixture of the fuel/air in to the Once warmed and popped gear, you say the motor will cut or …, when the mixture is too i.e. too much fuel to air this can happen.

Now there are a few in a carb that might that, check out the air filters, and between carbs and engine, any around the seals will the ratios to alter in a big way, and a up air filter, will of course the air intake, and subsequently the mixture enrichen take the carbs for a thorough clean, if the bike has lieing a while, old fuel can down it’s constituents and gum up the airways and the jets. New fuels have a shelf life of 3 tops, check the float with the spec in the manual, if you have a manual, the spec be online somewhere. reset to height if necessary.

Also, check out the jets and in the carb, check the jet sizes, stamped on jet, to the spec in the Bear in mind that locations can have different on the carb settings to performance. For different altitudes, and different make a difference, and also conditions, now in the colder months, in the hemisphere anyway, certain settings may not work as well as did in summer months.

Suzuki GS 450 E
Suzuki GS 450 E

Now that is of the carb/fuel side, you then the ignition side of things to BTW as i wrote before, if you feel a particular area is at fault, recent work was going on check that area you probably don’t want to sit strip the carbs clean and put on to find a loose wire in the side that was causing the all along.

Anyway, When an starts and idles that is one OK but then when a load is this can cause an increase on the from the ignition components, and if is any breakdown of insulation in the system, or a that is capable of working lower revs, but gives up as as more revs are asked the increase in amperage may cause Check first of all your to the coils, to the cdi unit, to the stators, in particular the HT leads, are they and old, check the plugs and the caps, or in america, the boots.

Have a look at your remove, connect to HT lead, against engine, by touching the body of the plug to the metal of the engine, please don’t it! or you will light up. Crank the a bit to observe spark with on of course. You want a nice fat spark, a weak white spark indicates less satisfactory conditions.

It would the bike, but as more fuel is pushed into the cylinders, the in pressures and explosion will the spark to fail, it is a very environment during the ignition of an internal combustion engine as you can it needs to be a fat good spark. if there is a good spark, it may be during normal running, would at first point you to a again there are test for your coils in the manual, it the resistance by ohms, through the primary and the secondary circuits.

Maybe you have a tester, or can one, to be honest they are things to have around, and expensive. If so far everything checks you would be moving on to the cdi unit, can only really be swapped out a known good one as they are sealed, and not adjustable. However, to you the truth, I would suspect your fault lies in of the aforementioned, and you won’t get as far as the cdi unit, are quite robust after

As i said, Check the easy first, the ignition connections, the condition of the plug, cap, HT low tension leads etc.

the coils, nice and easy, move on to the carbs, check potential leakage, blockage air etc. then move the carbs for good clean and jetting and float heights.

It be anything I have touched on, I think you will find answers in the fuel side than ignition, but you never until it’s all checked

Suzuki GS 450 E
Suzuki GS 450 E
Suzuki GS 450 E
Suzuki GS 450 E


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