Boggy 400 ex?

[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

[DirtDemon]

Ignition problem?

[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.

[Guest CRAZYQuad]

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

[bansheerider]

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.