Honda 400ex modification questions
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By Malta54
I own a 2007 Polaris Sportsman EFI X2 model and have for the past months been experiencing loads of issues. Basically the Sportsman will only start if the throttle lever is pushed and will not remain on idle. This situation has persisted for months now and I have replaced the following parts:
Sparking Plug
Fuel Injector
Fuel Pump
Fuel Filter
Fuel Valve
Fuel lines
Power Control Module
The last part replaced was the Power Control Module and the Sportsman was tested and worked fine on a couple of occasions which were days apart so much so that some weeks later I took the Sportsman for an extensive ride and it worked perfectly. This was three weeks ago and today I tried to start the ATV it worked fine a few minutes and decided to switch it off so that I could continue with some prep work. A few minutes later tried to start it up again but noticed that it would only start if the throttle lever was pushed and once I removed my finger from the throttle lever the engine would not stay in idle and would simply shut down. Several attempts were made to start this and also tried to re-adjust the setting by turning the built in wheel like mechanism in the throttle cable but it was to no avail.
The above have been repeating itself on an off basis. Each time a part is replaced the ATV would work and then all of a sudden will not keep its idle. At this stage I cannot think of any other solution other than possibly some sensors which might have an intermitting fault but I cannot really say.
Would greatly appreciate any assistance.
Thanks in advance.
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By cameronokeefe6
I have owned my 84 Honda 200m for years now and I am wanting to see what i could do to upgrade horsepower , speed , performance , power etc and do it safely and not cause future harm to the engine.
I was thinking on getting a 200x piston, will this work and give a good power increase ? I have heard people have done this in the past and it works great. and i was also thinking on a 200x cam , will the 200x cam fit in this engine and make a difference also does it require the upgrading of any other parts and will i have to run 91 octane instead of 87 ? has anybody run this setup before and got good results ?
I was also gonna go with a 200x carb but not sure if i have to buy an intake to hook it up or will it just bolt onto the 200m intake and fit fine ?
If anyone has any suggestions and advice on what i could do it would be greatly appreciated ! thanks in advance.
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By mga
on my left brake handle (for the rear brakes) there's two wires attached to it. What are these wires for? They can't be for the tail light, since it only has on filament I tried to trace them, but i got lost in the harness. I checked wiring schematics, but didn't see anything like that.
I'll post a pic later.
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By Gwbarm
Just aquired this Honda 4514. I had heard of them and seen them but had never really looked at one. Amazing machine from the 90s.
It has a 14 HP inline 2 cylinder engine. A cute little fan like the old school cars had and a little radiator. It has a timing belt on the back of the engine running the cam and a water pump. Just like a miniature car engine with electronic clutches to turn blades on and off. Pretty hight tech for the 90s not a small thing and built like a tank weighs in at 600 pds hydrostatic trans. I have found out that almost anything you have to do to it the engine has to come out starter timing belt water pump. Very expensive parts i think most got junked for that reason, i did find out they were built by John Deere except for the honda engine.
Does anyone here have any expierience with these.
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By p5200
I've been using Valvolene 10w 40 ATV oil but, it's like $8.00 a quart. Is that about the going rate? Or is there cheaper alternatives that would be suitable? Thanks
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