Guest Honda416

Boggy 400 ex?

Recommended Posts

Guest Honda416

Hey, I need help with my quad. My quad ran great all summer in the dunes, but Labor day it started running like crap. When I first start riding, it runs great, and has loads of power top and low end. After about 15 min of hard riding, it start bogging in the top end of the gears, and is a dog. I tore apart my block, replacing all of the gaskets top to bottom. Everything looks good inside, jugs, piston, crank, top end, and all the gaskets are brand new like I said. I'm wondering if it's an overheating problem....what do you think????

Thanks for the help...

Jeff

mods:

416 bore kit

rev box

weisco piston

pro circuit exhuast

hot cam

Share this post


Link to post
Share on other sites
  •  Like what you are reading? Please help us by sharing this content.


Guest Honda416

I replaced the sparkplug boot, to make sure it's getting a better conection but nothing. I wonder if it could be in the aftermarket rev box, cdi, or something like that. Wouldn't that effect the way it runs right off the start though? It only seems to act up after some hard riding....

Thanks for the help.

Share this post


Link to post
Share on other sites
  •  Like what you are reading? Please help us by sharing this content.

Sounds like an ignition issue to me. Do you syill have the stock parts? Try replacing to troubleshoot.

Share this post


Link to post
Share on other sites
  •  Like what you are reading? Please help us by sharing this content.

Check Your Coil Sound Like It Is Bad. U Can Ride Untill Your Quad Gets Hot Then It Losses Power From What U Were Saying Rode 15 Min.then It Loss Power.it Start's Here Once The Coil Goes Out All The Way Your Quad Will Get Hot And Die. So Check Your Coil.

Well See U Later.

Share this post


Link to post
Share on other sites
  •  Like what you are reading? Please help us by sharing this content.


Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  •  Like what you are reading? Please help us by sharing this content.
  • Similar Content

    • By Giuseppe
      Hi. I own a 2001 Yamaha Kodiak 400 4x4. I am looking to buy new rims for it. I just don't know what rims exactly that I need to get as the back and front rims have a different offset. I'm looking at the itp Delta rims. I have tires from my grizzly that I would like to use on my Kodiak. They are size 25. If anyone could help with the specific rims that I need to order, it would be greatly appreciated. Thanks
    • By ut1w7b
      I have a 94 sportsman 400. It sat for several years before i got it. I have cleaned the carb it will start and run for about 5 min then it will flood. I have torn it down and cant see anything wrong. has anyone else ran into this problem any hel would be great.
    • By ej200421
      i was wondering if i could get some help. i been trying to locate where the fuel and air adjustment screws are located on my 95 kodiak 400. i think i found the fuel screw.. i know where the throttle adjuster is but i cant find the air screw. or is there an air adjustment on these carbs?
    • By M0BJT
      Hi Everyone
      This is my first post and I was wondering if there is anyone who can help me solve a problem I have with my Yamaha Kodiak 400 4x4 Fitted with a Mikuni Carburetor . The year of the quad is around 1998, the reason I am not sure of the date is, there wasn't any paperwork and no details on the frame either.
      The quad had a bad leak from the carb overflow which indicated that the float needle valve was blocked or passing so I replaced this and put everything back together. The quad ran really well until I took it onto some rough ground to have a ride around, a few hours later the engine started to run really rough as if the engine was flooding. I have removed the carb again and cleaned the needle valve out and the whole of the carb just in case there where any dirt behind it. Engine now runs fine again but fuel has started to run out the carb overflow again.
      I have tried everything to try and stop the fuel leaking out the overflow but its still happening. My last thoughts where to adjust the float level and its still happening.
      Has anyone got any thoughts on the problem or could suggest whats causing the fuel leaking out the overflow.
      Thanks for reading
      Kevin
    • By PWRUMLEY
      Need some advise pls. Couldn't get the quad to start put a new cdi on it fired right up rode for about a week, now it starts just fine but will only idle for a few minutes then die, but will fire right back up...now it's running a little rough I rode it for about an hour and it started missing out when I even touched the throttle. I cleaned the carbs and cleaned the plug rechared the k&n air filter, still fired right up but same thing, it won't stay idleing and misses out and wants to die when I give it gas. It seems like it's getting too much gas or not enough not sure, or possibly a vacuum issue. Any suggestions