valve adjustment - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum

benson318 · 02-03-2010, 05:06 AM

Hi all , how important is it to check valve adjustment , do they tighten ?? do they get to much clearance , my foreman got 2000 hours dont think the valves have ever been adjusted , asked few guys who work at atvs " never saw one need adjusted yet on 450 " and dealer to opps .
may be they have never looked !!!!!!!!,
How would i know if they were out of adjustment

kennywaz · 02-03-2010, 09:28 AM

I'd say you need to have yours done. They loosen up over time and you'll start to hear a tick and your vavles will not open enough. I just did mine on my 2000 450 a few weeks ago for the 1st time and was amazed by how easy it was to do and how loose mine had gotten. Look at it this way, it can't hurt.

hobbytrucker1966 · 02-04-2010, 07:43 PM

QUOTE (Mr Ben @ Feb 3 2010, 05:06 AM)

Quote:

Hi all , how important is it to check valve adjustment , do they tighten ?? do they get to much clearance , my foreman got 2000 hours dont think the valves have ever been adjusted , asked few guys who work at atvs " never saw one need adjusted yet on 450 " and dealer to opps .
may be they have never looked !!!!!!!!,
How would i know if they were out of adjustment

i have a 2000 450 es and i bought it with high mileage and was tortured by a youngster anyway its got 19600kms which is about 12000 miles and i had been driving it now fr 4 yrs and i just had the valves set WICKED how much power i gained they were ticking and thought she was done fr good but when i set them man what a difference and if your mechanically inclined its way easy to do good luck and get DIRTY

benson318 · 02-05-2010, 03:41 AM

Yep mine ticking have to get them done may be this weekend does everyone stick with standard setting or do some people like to set them a little bit tighter , ??

h22ate · 02-05-2010, 10:59 AM

QUOTE (Mr Ben @ Feb 5 2010, 02:41 AM)

Quote:

Yep mine ticking have to get them done may be this weekend does everyone stick with standard setting or do some people like to set them a little bit tighter , ??

No you want to go with factory torque spec on this. If the valve isnt seated propery it will result in the valve getting hotter and hotter until it breaks down and goes caput. Thats one reason valves need to be adjusted... they can tighten up just as easy as they can loosen.

Kipes · 02-05-2010, 07:26 PM

QUOTE (H22ate @ Feb 5 2010, 09:59 AM)

Quote:

No you want to go with factory torque spec on this. If the valve isnt seated propery it will result in the valve getting hotter and hotter until it breaks down and goes caput. Thats one reason valves need to be adjusted... they can tighten up just as easy as they can loosen.

The factory specs for my 06 is .006 +-.001 so I always set mine at .005 and I have never had any problems and they are alot quieter than setting them at .006.

hondanut · 02-06-2010, 12:31 AM

I saw this post today at work and guess what i did when i got home . I adjusted valves in my two foremans and my 300 four trax the two foremans have 2700 to 3000 miles and the 300 is a 93 and has no odo but all three where pretty loose . It was so easy i highly recomend doing it i havent had a chance to check out the power differance yet but it cant hurt as for the difficulty if you cant pull this off you should find a new hobbie i hear knitting is quite nice.

h22ate · 02-06-2010, 12:39 AM

QUOTE (hondanut @ Feb 5 2010, 11:31 PM)

Quote:

I saw this post today at work and guess what i did when i got home . I adjusted valves in my two foremans and my 300 four trax the two foremans have 2700 to 3000 miles and the 300 is a 93 and has no odo but all three where pretty loose . It was so easy i highly recomend doing it i havent had a chance to check out the power differance yet but it cant hurt as for the difficulty if you cant pull this off you should find a new hobbie i hear knitting is quite nice.

Well some people arent as mechanically inclined as others. To some that will be a very difficult task, its not as easy as changing oil. But yes it is important to have your valves adjusted every 500 miles or so whether it be by you or a trained professional.

benson318 · 02-06-2010, 05:30 AM

QUOTE (hondanut @ Feb 6 2010, 04:31 AM)

Quote:

I saw this post today at work and guess what i did when i got home . I adjusted valves in my two foremans and my 300 four trax the two foremans have 2700 to 3000 miles and the 300 is a 93 and has no odo but all three where pretty loose . It was so easy i highly recomend doing it i havent had a chance to check out the power differance yet but it cant hurt as for the difficulty if you cant pull this off you should find a new hobbie i hear knitting is quite nice.

Knitting whats knitting got to to with valves !!!!!!!!!!! my granny does knitting dont think she could do valves on foreman thought ,

they be no prob biggest job takeing tank off to get at them , do them today .005 its then be very intersting to see what they like as valve adjustment not big on service lists here !

benson318 · 02-06-2010, 11:21 AM

Ok there we go job done not so bad honest , valves adjusted to .005 - .006 now boy did it need done
before adjustment exhaust was .020 and inlet was .008
exhaust was main one makeing all the noise , well what a change not a tick now totaly quite
I would have to say they were never checked ever best two hours spent well
Thank you for all yopur help

02-03-2010, 09:28 AM	#2 (permalink)
kennywaz Honda Rider Join Date: Dec 2009 Location: Vernon, NJ Posts: 41	I'd say you need to have yours done. They loosen up over time and you'll start to hear a tick and your vavles will not open enough. I just did mine on my 2000 450 a few weeks ago for the 1st time and was amazed by how easy it was to do and how loose mine had gotten. Look at it this way, it can't hurt. __________________ 2000 Honda Foreman 450ES- HMF Utility Series Exhaust - High Lifter Disc Brake Conversion - Progressive 512 Series Suspension - ITP Mud Lite XL 26x12x12 - 26x10x12 - Summit Winch

02-03-2010, 05:06 AM	#1 (permalink)
benson318 Honda Rider Join Date: Jan 2010 Location: N Ireland UK Posts: 16	Hi all , how important is it to check valve adjustment , do they tighten ?? do they get to much clearance , my foreman got 2000 hours dont think the valves have ever been adjusted , asked few guys who work at atvs " never saw one need adjusted yet on 450 " and dealer to opps . may be they have never looked !!!!!!!!, How would i know if they were out of adjustment

02-05-2010, 03:41 AM	#4 (permalink)
benson318 Honda Rider Join Date: Jan 2010 Location: N Ireland UK Posts: 16	Yep mine ticking have to get them done may be this weekend does everyone stick with standard setting or do some people like to set them a little bit tighter , ??

02-06-2010, 12:31 AM	#7 (permalink)
hondanut Honda Rider Join Date: Mar 2008 Location: mount washington KY Posts: 29	I saw this post today at work and guess what i did when i got home . I adjusted valves in my two foremans and my 300 four trax the two foremans have 2700 to 3000 miles and the 300 is a 93 and has no odo but all three where pretty loose . It was so easy i highly recomend doing it i havent had a chance to check out the power differance yet but it cant hurt as for the difficulty if you cant pull this off you should find a new hobbie i hear knitting is quite nice.

02-06-2010, 11:21 AM	#10 (permalink)
benson318 Honda Rider Join Date: Jan 2010 Location: N Ireland UK Posts: 16	Ok there we go job done not so bad honest , valves adjusted to .005 - .006 now boy did it need done before adjustment exhaust was .020 and inlet was .008 exhaust was main one makeing all the noise , well what a change not a tick now totaly quite I would have to say they were never checked ever best two hours spent well Thank you for all yopur help

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