[moparfarmer]

Ongoing problems with this bike.... dealer is avoiding dealing with the issues! 300 hrs, has a leaking cylinder head cover, I believe it has warped due to the engine overheating which I believe is caused by the engine running lean, this has been a problem with this bike since new. On any day you can drive up the street and hold the throttle at mid range revs in second or third, watching the exhaust it will glow red hot before the fan kicks in with the fan staying on for about 30 seconds. Anyone else had this issue? I know the O2 sensors fail but this has no fault codes.

 

[retro]

If it isn't under warranty anymore I'd pull the head cover off and reseal it. Its probably not warped at all. If it is damaged or defective its easy to replace.

As for your header pipe glowing red hot, that could be a symptom related to how you are operating the motor, or it could be an actual problem. It will have to be diagnosed to see if there is actually anything wrong with the electronic ignition advance. Pipes glowing a faint red are much closer to normal than you might think... I can make almost any motor glow, on purpose.

Any head cover leakage is entirely unrelated to red pipes.

Welcome to the forums!

 

[dalekoven]

Stainless head pipes are known for glowing. You have to understand that the dealer didn't build the machine and have no other choice but to follow manufacturers guidelines. Honda says no help, the dealer is up against the wall. That being said I know Kawasaki says your valve cover leaking is covered to 250 hrs. Why you ask? There is no hr limit on the warranty, just time. The reason is the 1st valve adjustment is due at 250hrs so you should have taken that cover off to adjust. To them, it's a wear item. You didn't adjust your valves , at recommended interval, it's a failure to perform maintenance. As outlined in the warranty statement; any failure that is caused by abuse, neglect or modifications not approved by the manufacturer can result in denial of warranty.

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[dalekoven]

That being said leaks and seepage in engines is normal as time goes on. Most are actually caused by the dis - similar cooling properties of components of the motor. I.e. the rocker cover cools at a different rate than the engine block, for example. This will cause "movement" of the sealing surfaces. Seepage is normal on all engines. Your car/truck does it too. Most people don't see it because it's hidden from view unlike play toys that have the engine looking right at you

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[dalekoven]

I also wanted to address your midrange issue. The way the fuel systems tend to work. 14:1 is optimal fuel air ratio. Idle tends to be richest point 8,9:1. Midrange tends to be leanest at about 15,16:1. Wide open is normally closer to 11,12:1. Wide open ratio being rich is all about cooling the combustion chamber. Motors aren't really designed for constant midrange operation. Most motors spend their lives at idle and WOT. Think about it. When you ride and shift do you just take the throttle to half and stay there? Not me! WOT to corner, let off , feed a little into apex and back to WOT! I hope this helps. As a side note if you are a midrange rider, lower you needle clip a notch or two. This will help the lean.

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[misterclean59]

This bike is fuel injected. Also I disagree about the percentages going all over the depending on throttle position. Optimun is optimun. Yes you can run a little rich all full throttle to bring down temps but not that big of a percentage.

 

[creed82]

My 2016 Rancher trx420fa2 (DCT trans) has been flawless now for 320+ hours and 3000 miles. No issues, just constant fun.