Honda 400EX FourTrax - Engine Load?
99' 400 EX; Under a load the engine will not rev very high or create any power at all. The problem first occured after riding in the snow. Max top speed is about 15mph. Starts fine idles weel doesn't perform while in gear?
Dave Stehnacs dstehnacs@msn.com

Honda 400EX FourTrax - Camber adjustment, Riding situation?
I have a 2000 400ex. I have a few questions concerning the quad. My right front tire tends to stand up more vertical than the left front. My left front leans in at the top. Can I adjust this? If not, what part is the problem? Another question, not related is, after riding through water (couple feet deep) I usually notice a pinging sound in the engine. I have asked the local dealer about it, they didn't know what would cause it. They did assure me that riding in water was perfectly harmless... Any opinions???
John Fesler jfesler@indy.net

Honda 250es Big Red 3-wheeler - Motor oil Recommendations?
I just bought a 1985 Honda 250es Big Red 3-wheeler. I want to know what weight of motor oil would you recommend me using. Synthetic or not?
Thanks,
Gene reunite1@bellsouth.net

Honda odyssey FL250 1983 - Carb hose problems
I have a 1983 Honda odyssey FL250. I would appreciate any help I could get. On my ody's carb, there are three hoses. I need to know what the name of the part, and or what it is that connects these three hoses. Is it just a standard T valve?... I can use any suggestions.
Thanks,
Brian Navywrestler69@aol.com

Honda 3Wheeler 1985 - Rear swing arm trouble
I tried to change the rear swing arm on my 1985 Honda 3 wheelers but couldn't free up its axle (front where the chain tensioners are.) What's the secret?
Dave david@wpe.com

Honda 400EX 2000 - Oil leak
My 400ex (2000) has an oil leak on the left hand side as you face the front. I know where it is leaking but havve trouble explaining it. The bolt takes a 6mm allen and there is another right next to it. I think they are located on the top of the head and hold the rocker arms in. They have a brass or cooper washer. The leak is just weeping and started suddenly after riding it for all year. If anyone knows what I'm taking about or wants to help I would appreciate the help. Also please don't worry about asking me to be more specific. I would also like to know if any one has an easy explanation on how to adjust the valves on the 400ex. My biggest problem is how tight they should be on the feeler gauge. I have had people tell me to adjust untill the gauge wont move and then back off the screw. If anyone can help my boys (8&4) need it.
byrne mspsk@hotmail.com

Honda TRX300FW 1999 - Oil issues
I wanted to thank you for the informative website. I have a 1999 Honda TRX300FW ATV. I have been using the Honda Motorcycle oil due to the rumors that using automotive oils would cause clutch slippage. I use Mobil 1 synthetic 10W30 in my passenger vehicle. Thanks to you I will now start using Mobil 1 (non-30 weight) in my ATV. I usually change oil twice during the year using 20W50 oil for the summer months (I live in Alabama) and 10W40 for the rest of the year. I would rather use 15W40 during the cooler months unless you believe this to be unwise. I noticed that this weight was not on your recommended list.
Frank McMillan twofrans@pickens.net

Honda 400EX 2000 - Throttle Adjustment (thnx to Gabe(gellett@spam.net) on atv newsgroup)
- The 400EX has an adjustment for the throttle cable, I have found that the Y2K's are adjusted all the way in from the factory. This only allows for about 60-70% throttle opening.
- The easiest way to check to see if yours is this way is to pull the rubber boot back that co90vers the cable's entrance into the thumb throttle control.
- If it is adjusted in all the way (and it probably is), pull the fenders off, separate the boot from the air cleaner to the carb. Look into the carb as you apply full throttle. The slide should COMPLETELY disappear. Adjust the cable until it does so. Make sure the slide can return all the way to the idle postition.
- Reassemble. Start it, let it idle, turn the handlebars to make sure the idle does not raise. You are done. Wick the throttle in neutral, it will sound much, much meaner. Prepare for much more acceleration and throttle response.

Honda 400EX 2000 - Oil Selection and Change (thnx again Gabe(gellett@spam.net). This guy knows everything about 400EXs)
-Question: I have a 400EX Honda with about 6 hours on it. It smokes alittle bit sometime between shifts and after downshifting. Is this normal till it is fully broke in? I plan on changing the oil/oil filter after a couple more tanks of gas. -Thanks Nathan
-Answer: Your 400 is trying to tell you that your oil is either broken down or not a heavy enough weight. I have found that the EX is particular about oil (this goes somewhat for an XR400 as well,m although they are a bit easier on oil). I run Mobil 15w50 Synthetic, and don't smoke anymore. Have a friend who runs Synthetic 10w40, his bike was smoking severely on decelaration. We thought it was just the way his bike has been treated.l Recently we went for a ride and did a quick 20w50 oil change. The bike stopped smoking immediately. We will switch this bike back to a heavier synthetic on the next oil change.

Past experiences and tests:
-10w40 Conventional will smoke rather quickly after being changed, mainly on deceleration/between shifts. When drained, is obviously “worn out.”
-10w40 Klotz Synthetic works ok for a while, but will break down and begin to smoke like conventional 10w40.
-20w50 Castrol Conventional will work for 4 or maybe a few more tanks of gas before breaking down and beginning to smoke (depending on how it's ridden).
-15w50 Mobil Synthetic I have been running since mid April with no noticed smoke or oil bu;rn smell. The oil is beginnning to get some color to it, I will probably change it soon. -It will make you a believer...