when to adjust the valves on my 350x

**3leggeddog** · 11-20-2005, 07:58 PM

how do you know they need adjusted,and how do you do it?i am new with these darn thumpers.my 350x seems to make some noise in the valvetrain and i don't know if it's nomal,or if they need adjusted.do you check the tolerence between the rockers or something?

**Unclediezel** · 11-20-2005, 08:08 PM

It must be valve week here in trikeland-----Follow the Shop manual recommendations for clearances--Somewhere near your flywheel there will be a rubber plug on the motor- pop it off-rotate the motor until a "T" is visible in the hole-pop off your valve covers - and make sure all your rockers are free- Valves closed- if not - make one revolution until the T lines up again- you will be checking the clearance (Free Space) between rocker arm and valve tip.

Specs can be found at the front of the site -----BTW - How did your brakes turn out?

**3leggeddog** · 11-20-2005, 08:35 PM

i got em working,but i ahd to use the MC off my r.i must have air in the MC,or i rebuilt it wrong.thanks for the advice

**Unclediezel** · 11-20-2005, 08:41 PM

No prob--
As for valves---Dont sweat it---Ive been an auto mechanic for 20+ years -and when I came to 2 stroke toys -it took me forever to understand what the hell a reed valve does!

**edog** · 11-20-2005, 09:03 PM

When it starts getting hard to start.This happened to my Tri Moto.

**350Xhilaration** · 11-20-2005, 09:34 PM

I'll send a service manual and parts manual with craig if I can remember.

REMIND ME with an email...rhuel.adams@gmail.com

**3leggeddog** · 11-20-2005, 10:10 PM

your the man rhule!!!!

**SpeedBump** · 11-20-2005, 10:45 PM

The noisy topend is more than likey a stretched timing chain.. ATC350X Timing Chain (the valves may need some adjusting as well.

)

ATC350X Timing Chain I bought and used one of these DID chains in my 300EX. The BorgWarner is the OEM if I remember correctly.

ATC350X Timing Chain Another one on Ebay.

Get some

of your new toy...come on already.

Service Honda Part & Price... Little steep eh?

**200xcellent** · 11-21-2005, 12:54 AM

Stretched timing chain? This thing still has paint on the top of the foot pegs!!!

**chris200x** · 11-21-2005, 01:27 AM

Maybe something here can help.

http://www.3wheelerworldforums.com/s...ad.php?t=43286

I'm in the process of learning how to do this myself. The only diffrence is it's a griz 600

But I suppose it's the same process for all motors is it not?

**chris200x** · 11-21-2005, 07:10 AM

This will do the trick. Just scroll down a bit and skip the fender removal steps. My good freind Huffa just turned me on to this one.

http://raptor.popolz.com/adjust.html

**TeamGeek6** · 11-21-2005, 12:22 PM

Stretched chain with "still having paint on the footpegs?" Maybe not, but the rubber in the tensioner guides can shrink and cause the chain to be loose. I assume it has rubber guides like many other Hondas.

Get a piece of plastic pipe or a stethescope and listen around the engine, itll be obvious where the noise is. Put the pipe against the engine case and hold your ear to the other end, the pipe will magnify the sound.

Make sure to not overtighten the valves, that caused them to burn. I always test a set (for one cylinder for example) by setting them to "book" then backing them off loose till they start rattling, to see how much difference there is.

Best thing Ive found for old Hondas is to adjust the valves with engine running and hot. That made huge differences in the Honda 4-street bikes because the clearance hot and clearance cold are never the same, and the clearances often decrease when hot.

**max** · 11-21-2005, 02:32 PM

the dude sold it. my motor is about to blooooww

. i hope not budy

**350Xhilaration** · 11-21-2005, 04:49 PM

I'd have to disagree with the "adjust them hot" theory. Unless Honda ATCs have a different spec than a Honda car. (which is possible, but i doubt it). Honda car valves have always had a clearance spec that was for a cold engine. Do ATCs have the same? By the way according to Honda, Cold = <100 degrees F.

I'll look at the svc manual tonight if I remember to see if it specifies cold.

As far as backing them off a bit til they rattle, Are you talking about while the engine is running? Can't (Shouldn't, CAN do anything, but not a good idea) do it with the style of tappets Honda uses. There is a set screw and locknut on the "rocker arm".

A screwdriver or prybar will also do the same to "amplify" the noise and help pinpoint it. Put the handle end against your ear and the tip on different areas of the engine.

**3leggeddog** · 11-21-2005, 06:35 PM

it just seems like i can hear the valves int he pipe.like they are tinging or rattiling in the pipe.maybe it's just the dg pipe?

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when to adjust the valves on my 350x

Noisy Top End.

Idk?

no wonder