davefrombc

There should be a "hook" on the spring that clips over the lower lever in your pix, and the other end of the spring likely just sits against the case. The longer part with the hook hooks over the lower lever arm next to the bent down tab of the upper lever. Here is a drawing of the assembly :

The edges of the U cup seal(s) go towards the outlet. The pressure in the system when you press the brake forces the lips of the cup out to hold the pressure. If it is backward the pressure pushes them in and bypasses the piston. That easily could be the problem . You wouldn't be the first to accidentally put them in backwards 😇

No, there should be no blow back into the reservoir when you put pressure on the pump , only on release should any air blow back, and only until the air is out of the pump. it sounds like the plunger on the master cylinder has a defective seal. There is no check valve on the master cylinder so when you release the brakes the wheel cylinders push the fluid on the lines back to the reservoir. If there was a check valve , once the brakes were applied they could not release. I think you got a defective master cylinder. There are videos on rebuilding them on Youtube and rebuild kits are not expensive.

You should.. I don't know if you're familiar with bleeding brakes , so I'll toss this in . When you pump, while the handle is down in the pumped position, close the brake bleeder vqalve so the master cylinder has to draw from the reservoir rather than drawing back from the line . Same goes when just at the master cylinder itself .. block the outlet with your thumb when releasing the brake handle . You should get pressurized fluid on each pump after the first .

There is very little volume per stroke on the master cylinder , so I would suggest just keep bleeding the system until all the air bubbles out. A faster way , but a lot more expensive is to buy a tool to do a reverse brake bleed. It's a handy tool if you need to vacuum test switches and air motors as well as bleed brakes on any of your vehicles. Here is one on Amazon.com: https://www.amazon.ca/Performance-Tool-W87030-Automotive-Bleeder/dp/B013VUZ7WG?th=1&psc=1&source=googleshopping&locale=en-CA&tag=googcana-20&ref=pd_sl_54ilvkye00_e

There's one in page 2 of the sites service manual list in the downloads section. You'll need 10 posts before you can download it . Here's a link and info you need to read before trying to download it. Basically , you need 10 posts without spamming the site to get them . This manual covers the 250 to the 400.

That o ring missing might be your problem. That might be the source of excess air entering the system.. Is the slide of the main jet all the way down at closed throttle ? if for some reason the throttle cable is holding it slightly open that could also be your problem.

Here is a ad for the carb where you can see the assembly of the choke mechanism.. I'd just drill a small hole on the choke lever you held with your finer and replace that with a lawnmower cable to the choke and mount it so you have a simple pull /push to operate the choke . If you have all the parts , it should be easy to reassemble it, otherwise McGyver it like I suggested. https://www.amazon.ca/Carburetor-HONDA-TRX200-1984-Wheeler/dp/B00KLKIZIS

Starter is toast. Those magnets are supposed to be permanently attached to the case.

Welcome to the forum.

That should work as a spark test too..... and with a brighter ,easier to see light. When you finally find the fault, please let everyone know just what it was . Every time someone posts a problem solved it helps the next one with similar trouble .

If that's the case there could be electrical problems causing it. Get a spark checker like this one and it'll tell you right away if the spark cuts out when you try to accelerate . https://www.amazon.com/JND-Fool-proof-Engine-Ignition-Tester/dp/B0042KJV9U/ref=pd_lpo_vtph_263_lp_t_1?_encoding=UTF8&psc=1&refRID=XPM0TCGERPD45V7VN6DG

It is possible a weak spark or faulty plug that fails under increased pressure could cause the problem. I still think it is a lean burn problem though. It could be from a plugged passage or a tiny hole that you're missing in the jetting ..Check for a leak or crack allowing air to enter on the block side of the carb too. There is no rev limiter on your quad.. My own quad is a 1991 Honda Fourtrax 300 FW .. basically the same machine you have except it is full time 4 wheel drive. Here is a video on servicing the carb.

Clean the carb again. You have a classic "running lean" problem when you open the throttle . It could be a plugged passage or the tiny drilled holes in the main jet tube, the idle air screw maladjusted or possibly the float level set too low so the float bowl doesn't fill properly. There is a download of the service manual that would cover your machine in the forum's download section .

Can't be . it comes off the intake port of the block downstream of the carburettor. It is connected to the vacuum of the intake manifold .

There is a service manual for your Polaris in the download section . It is in multi-part pdf sections .A quick glance at some of them on the engine and carb didn't show that hose , but you might find it in a more thorough read through the complete manual. Could it be the impulse hose for the fuel pump since it ports off the intake on the engine side of the carb. If there is a separate pulse hose from the crankcase , you could try blocking that hose off and see how the engine runs. With it open the engine would be running very lean. That looks like a 90 degree connector to join to another hose leading possibly to a vacuum motor to operate something on the quad.

Welcome to the forum Mario. Ihaven't seen any Linhai quads in our markets but yours looks like a nice one and well equipped .

Eating or drinking a non-alcoholic beverage while driving in itself is not illegal , but if a cop sees you weaving or doing some other driving errors that can be attributed to distracted driving you could get a ticket for that. Cops here are exempted from some of the rules on fiddling with electronics while driving, and it has led to a few cases of them getting into accidents while using a cell phone or checking their on board computers. Use of a hand held microphone that is used as a microphone only is exempt from the no hand held electronics laws here. That covers CB's, police radios and HAM gear ..It is illegal to use the mike to tune the radio to a different channel or any other function than push to talk because it leads to the driver diverting his attention to driving. Yup, it's a fine line , but its there to allow use of communication gear not held and tuned in the hand. Yeah , in that campaign photo what could go wrong ?..... Other than him blowing a new navel into that lad . Your mid terms are going to make for some interesting watching this coming November. The Dems need to really work on getting the vote out and find some very good candidates to run in the red states to turn them as bright a shade of purple as they possibly can. Let tRump and the ERW carry on much longer they way they've been going and I can see a lot of Americans waking up one morning wondering "What the hell happened"? I'm afraid they're putting America and all her trading partners on a path to a repeat of 1929.

By the same token of taking "freedoms" to extremes , we should remove all speed limits and traffic signs because we shouldn't interfere with peoples " freedom" to speed with reckless abandon or their "freedom" to speed through intersections with no consideration of others. We should be able to park anywhere we want and how we want. In any society there has to be some reasonable limits to "freedoms" for the good of all. Freedom is not total anarchy and total anarchy grants no-one any " freedoms". A crash because someone was exercising his "freedom" to ignore traffic rules and common sense is the ultimate denier of "freedom" for the victims maimed, paralyzed or killed by that fool. By the way , in many jurisdictions there is a ban on tinted windows of the drivers and front seat passengers windows and limits the the amount of tint in the windshield. Those limits to "freedoms" are there for the "safety" of LE officers so they can see the driver and front seat passenger . Admittedly it actually does little to protect them, but it is a law that few take as any assault on their "freedoms". I draw the law on all limits to "freedom" that are unreasonably extreme, and to definitions of "freedom" that are also taken to extremes.

You have the freedom to take risks with your own life and limbs but you should not have the freedom to risk other's. When you knowingly risk the safety of others, that is not freedom. That is stupidity and selfishness . No phone call is worth risking anyone's lives , no matter how safe you think you are using a handheld cell phone while driving or how much you want to risk your own life in the name of "Freedom" .

I have a 1991 TRX 300 FW I bought used about 5 years ago. So far , the only major mechanical repair it has needed is a new rear axle and wheel hubs. The splines wearing out on them is a fairly common problem for the older machines. The hubs nuts must be kept lubricated and tight. Mine wore to the point the left wheel spun freely on the axle. I didn't notice it because being full time 4x4, it wasn't obvious until I got in a situation where the right rear wheel was in the air and one wheel on the front had no traction. My winch saved the day, and a new rear axle and hubs made sure of no repeat of that problem. The only other repair ? New front brake shoes. Here is a link to the shop manual for your TRX 300.. It's in the sites download section.

Yes . tRump is the consummate circus barker. Tell the people what they want to hear and ignore the facts. I won't begin to try to argue universal health care with you except to say it is not free, nor does it cater to the "freeloaders" . We pay for our healthcare through our taxes and it covers everyone with no co-pays, exclusions ( for necessary healthcare, vanity surgeries are not covered)and no caps. Everyone is covered. Yes . "freeloaders" too, but nobody goes bankrupt because they had the misfortune to get sick. The ERW has done a fine job of poisoning peoples minds as far as universal health care goes . .You'd think good caring Christians and working Americans would want universal health care that covers everyone and at less cost than health care in the US costs now. Health care should not be something anyone should have to worry about; whether the have a "Cadillac " plan through their union or company plan or a minimum plan because that's all they can afford working for the less than best company, or the bum on the street that "good Christians" tend to ignore Christs teachings on the subject and look down on them. Not all of those bums are freeloaders by choice . Some are there because the US system of health care failed them , and others because they were unable to keep up with changing technology, the realities of today's workforce and the profit decisions of the 1%, and yes , the"War on drugs that has done more harm than good to the vulnerable while enriching those that profit by jailing them.

I won't begin to try to explain how CO2 and methane released, as well as deforestation, all from human activity contribute to the global warming we see now . Especially when you ignore the overwhelming evidence presented by the scientific community to believe the blabber of the few that deny the facts. When you look into the background of some of the deniers in the scientific community , you too often find they are closely associated with Big oil and other industries that are heavy producers of pollutants. I also can't convince you or present any better evidence than that shown by accident statistics involving hand held electronic device... Cell phones are the overwhelming examples. Yes, texting is by far the worst, but dialing and even just the holding and chatting distracts. Our laws here do make exception for the use of microphones. The catch is the microphone has to be just that .. The radio must be attached to the vehicle either permanently or in a holder, and the microphone must not be used to change frequencies or other functions other than push to talk. By the way , I don't know in your jurisdiction , but here you can be fined for distracted driving if you are seen to be eating , drinking coffee or in the case of the ladies doing some makeup maintenance ( maybe just not the ladies in today's world) and you weave or otherwise indicate your attention is not on the road. Do yourself a favor ( favour in our spelling) and read some from the mainstream studies presenting the evidence for the effects of the increased CO2 in the atmosphere that has been going on since the beginning of the industrial age and the other factors leading to the increase in global warming. I certainly can't begin to explain it properly . Stay away from the extremists and nut cases on both the right and the left. Universities trying to present logical arguments for social reforms such as universal health care and other "Socialist" ideas will always be branded as pumping out "Socialist" ideas by the Extreme Right Wing who have vested interests in keeping the US the only western industrialized nation not having universal health care. Ant time anyone presents arguments that could affect the profits of the 1% are going to be attacked by them , and what better way than to scream they're socialist or communist ideas and interfering with your "freedoms" . It has worked for the last century,although maybe not quite as well as it did during the Cold War .

Two things I disagree with you on ..1) Climate change accelerated by human activity is not BS. It is a proven fact. The storms and record breaking temperatures ( including the record cold and snows in the north-east the last couple of winters) . The floods and fires in various countries as the weather patterns and jet stream shift are a result of the change .. It may not be as apparent in parts of the southern States as it is in the north ( and the farther north you go the more apparent it is ). 2) The cell phone ban while driving is a good thing. Recent statistics everywhere cell phone users use their phones while driving have shown it is more dangerous than driving over .05 ( or .08). We have a total ban on any hand held electronics while driving here , but unfortunately still see to many cases where that damn phone in the hand and the inattention to driving it causes has resulted in collisions, from minor fender benders to fatalities. They allow hands free calling here where use of voice calling and blue tooth ear pieces are used, and even that has occasionally been cited for reduced attention. Fines for distracted driving via cell phone use are quite steep here , but still far too many are addicted to doing it. If you don't see many examples of cell phone related distracted driving and accidents where you are , you are in either a very lightly populated area for traffic or you just haven't been paying attention to just how much of it is going on. I have had too many close calls here by fools on their cell. Mine stays in my pocket while driving. I can call back to anyone who phones while I am behind the wheel, and I can pull over out of traffic and stop if I need to make a call. Yes , anti-Hillary sentiments also played a large part in tRump's vote count . Not so much because she was unqualified for the job or for any "illegal" things she and Bill have done in the past .. The biggest part of the anti-Hillary sentiments are a direct result of the GOP and their ERW specifically spending years of character assassination and trying to find something illegally done to pin on the Clintons, with spectacular lack of success despite millions spend doing so. The dislike for Hillary was (is) partly due to a perceived arrogance in her but largely to the years of lies and character assassination by a GOP that feared the Clintons and a Democratic win. Do I think the Dems could have fielded a better candidate with far less baggage ? you bet. I don't think Bernie would have been the one .. He is too far left for too many Americans fed with a constant barrage of "anti - socialist" propaganda. I take no pleasure in telling American that will listen "I told you so" . I'm still amazed that tRump ( or as some in another forum I'm in call him "IQ45" for his position on the Presidential succession and his stupidity seeming to match in numbers) still commands support by about 1/3 of Americans and far higher support among the GOP. The latter may be because of the fear of losing control if they actually voiced opposition to him and his cabinet of despicables. As a friend from tRumps great enemy,, Canada, I hope Mueller soon comes up with the evidence to move the great orange wonder from the White House to the Big House; but then he would be replaced by Pence. Sorry , he is a lot smarter politically, but I don't see him as much of an improvement for the good of America. I think the mid terms are going to make for some "interesting" developments in the political landscape down your way .

I think the sprag ( one way clutch) is being blamed for another problem. I can't tell what is making it stall after idling for a few minutes, but I very much doubt it is the sprag.. It is more likely a fuel problem . Is it running rich with a lot of carbon black building up on the spark plug?