Thankful for these forums and rebuild question

[OldGuyonaQuad]

Yeah these forums aren't as active as they were back when I joined 4 + years ago (nor am I) but I am thankful for the many tips I received here on purchases and places to ride. Mostly I am thankful for the handful of riding buddies I picked up. Which leads me to my post and both points.

Lonnie hit me up today inquiring about doing some Sunday single day rides in the near future and I told him about my bottom end having to be rebuilt. He offered to help me out and let me know what my options were once he took it apart. Very cool him since I can't turn wrenches so it will defiantly save me some cash.

So the question is do I go with a stock rebuild or since I have it apart get a stroker 460? I don't race but I do like the notion of having the extra power for hole shots and when we hit the flats and I'm in 5th gear. Stock will run my roughly $500 and the stroker around $1100. My biggest concern is longevity. Will the stock give me twice the life time for 1/2 the money? Will I have to keep my r's up on the tighter winding trails with the big bore? Do you really blow out more head gaskets with the big bore or is that just a myth? Any feed back is appreciated and Lonnie rocks!!

[CJM]

Personally Id leave it stock for reliability.

I found the best overall motor I ever did for the 400 was 416 11:1 and the 450r carb :)

I cant believe your bottom end went, you been riding alot lol? I hardly got out this summer really, sooo busy with other stuff right now :(

[OldGuyonaQuad]

chain was loose and kept coming off finally went through the case. I had purchased a chain guard but it didn't fit :(

[CJM]

Aw that stinks :( Find yourself a plastic/poly chain guard. That way it will wear into that should it happen again.

[2001400exrida]

chain was loose and kept coming off finally went through the case. I had purchased a chain guard but it didn't fit :(

lesson learned i hope. I see this happen all too often, many times it's pure accident but if you're running a loose chain you're flirting with disaster, the fact that it came off before it did the damage is enough to make me stop right there until things are fixed.

[OldGuyonaQuad]

I was stuck in the woods 4 miles from the trail head, my buddy was on a dirt bike so he couldn't tow me and not one of the douche bags riding their side by's would tow me, I had to leave it there in the woods over night & do the 7 hour round trip from VA to NJ again the next morning. So much for southern hospitality.

[2001400exrida]

damm, yeah i would have been pissed.

[CJM]

Aw man that sucks. I woulda pushed it 4 miles..

[mikey726]

Yeah these forums aren't as active as they were back when I joined 4 + years ago (nor am I) but I am thankful for the many tips I received here on purchases and places to ride. Mostly I am thankful for the handful of riding buddies I picked up. Which leads me to my post and both points.

Lonnie hit me up today inquiring about doing some Sunday single day rides in the near future and I told him about my bottom end having to be rebuilt. He offered to help me out and let me know what my options were once he took it apart. Very cool him since I can't turn wrenches so it will defiantly save me some cash.

So the question is do I go with a stock rebuild or since I have it apart get a stroker 460? I don't race but I do like the notion of having the extra power for hole shots and when we hit the flats and I'm in 5th gear. Stock will run my roughly $500 and the stroker around $1100. My biggest concern is longevity. Will the stock give me twice the life time for 1/2 the money? Will I have to keep my r's up on the tighter winding trails with the big bore? Do you really blow out more head gaskets with the big bore or is that just a myth? Any feed back is appreciated and Lonnie rocks!!
I blew a couple head gaskets on my 426 before I found out that you had to torque the head down tighter with higher compression. I torqued both the cylinder and head to 40 ft lbs instead of the stock 30 and no more problems.

[OldGuyonaQuad]

thanks for the heads up mikey! But I think CJM confirmed what I needed to hear. For a rider like me stock is the way to go.

[OldGuyonaQuad]

Thanks Marc, Lonnie & Wayne for all of the help tonight

here is the piston and cam that I am getting

http://www.ebay.com/itm/390789263345?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

http://www.ebay.com/itm/291103386077?_trksid=p2055120.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

looking for good gaskets now along with carb rebuild kit and the foam filter

you guys rock!

[CJM]

:D It will be a good build

[OldGuyonaQuad]

I can't wait, I ordered them both. Hopefully in three weeks weather permitting we can set up a ride. Again very thankful for these forums. picked up some good tips, places to ride and very cool riders to hang with & get help from.

[OldGuyonaQuad]

here is the gasket kit I ordered

http://www.ebay.com/itm/190518644764?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

some of them reference the bore size. Did I need to get one for 86mm? Or is this one ok?

[CJM]

here is the gasket kit I ordered

http://www.ebay.com/itm/190518644764?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

some of them reference the bore size. Did I need to get one for 86mm? Or is this one ok?
Doesnt matter bore size unless you have a 440. Piston doesnt come up high enough.

Looks like the right gasket, if it doesnt look all rubberized metal when you get it DO NOT use it. Like I said over the phone, some show the one pic and send the junk fiber gaskets.

[OldGuyonaQuad]

ok thanks Marc, I will keep you posted.

[fastredrider44]

I blew a couple head gaskets on my 426 before I found out that you had to torque the head down tighter with higher compression. I torqued both the cylinder and head to 40 ft lbs instead of the stock 30 and no more problems.

Be very careful when torqueing down the head. Go in steps and be warned that the 400s are very bad about pulling the head studs during the torqueing procedure.

[OldGuyonaQuad]

Be very careful when torqueing down the head. Go in steps and be warned that the 400s are very bad about pulling the head studs during the torqueing procedure.

Thanks for the heads up Fast I will pass that on to Lonnie who is doing the rebuild for me.

Marc,
Should I put a bid in on one of these since I'm going to spend $25-$30 on a rebuild kit anyway? What year did you say to get? ES or R matter?

http://www.ebay.com/itm/HONDA-TRX-450R-CARB-STOCK-CARBURETOR-400EX-KEIHIN-/251492920579?pt=Motors_ATV_Parts_Accessories&hash=item3a8e256d03&vxp=mtr

http://www.ebay.com/itm/2005-HONDA-TRX-450R-CARBURETOR-/301137100644?pt=Motors_ATV_Parts_Accessories&hash=item461d2b7f64&vxp=mtr

Here is a new one with make offer option maybe go $50?

http://www.ebay.com/itm/CARBURETOR-HONDA-TRX450-ATV-450-FOREMAN-450ES-S-FM-FE-CARB-/380827226442?pt=Motors_ATV_Parts_Accessories&hash=item58ab12514a&vxp=mtr

just noticed last one might be for foreman

[CJM]

Be very careful when torqueing down the head. Go in steps and be warned that the 400s are very bad about pulling the head studs during the torqueing procedure.

Thats why I was talking about going to the heavy duty studs as well. Its a rarity but does happen.

The carb needs to be off an 04-05 TRX450R, anything after that is an FCR carb and while it will work-it takes alot of work to do. In order to put the R carb on isnt all that hard but does require some work and you lose the choke b/c it binds with the fuel line. So ya gotta pump it 3-5 times to prime it before it starts. First two you linked will work. Join trx 450r . org, people sell those carbs all the time CHEAP.

[OldGuyonaQuad]

thanks Marc, choke is no biggie I bought it without one as is so it wouldn't be missed. I will feel Lonnie out on the conversion to see if he is comfortable, what all do you have to do to convert it? bigger carb = more gas + more air intake =more hp?

[CJM]

Yea it drinks a little more gas and makes a bit more power :)

to convert one isnt all that hard. Plug the hotstart, change where one of the vac lines goes, need to run an adapter or buy an pvc fitting from home cheapo. If wayne can machine things you might want him to make the adapter out of aluminum. Not hard to do in the end really just takes some time. Real shame you didnt do this earlier, had one already to go I sold.

[OldGuyonaQuad]

thanks Marc, yea figures I'm usually a day late and a dollar short. I registered to that site and checked the for sale forums (hhm I didn't even check here yet) found one that he wanted $200 and everyone told him it was a $60 carb.

[CJM]

At most Id pay 125 for a SUPER clean one or if it was in good shape just to have it asap. It can always be added later anyways no rush now.

I sent you a pm there.

[OldGuyonaQuad]

there is one on ebay but its missing: Only thing missing is throttle cable and hot start cable
does that matter? can I use the ones from the 400 ?

[CJM]

there is one on ebay but its missing: Only thing missing is throttle cable and hot start cable
does that matter? can I use the ones from the 400 ?

Throttle cable off the 400 can be used, hotstart cable not needed. Your actually going to plug the hotstart off with RTV. What you do need is the hotstart plunger/cap that goes into the carb. Well you dont actually need them, but it seals better imho. Cause you could just fill the port with rtv totally minus parts.

[Baileygunns]

I have an adapter on the shelf if you need one...

[OldGuyonaQuad]

I have an adapter on the shelf if you need one...

the piece that I would have to rig from home cheapo? How much do you want for it? BTW Marc, can't find any listings for home cheapo in my area you got a link :D

[CJM]

Funny Tom lol..

The adater is well worth it, makes a better seal imho.

[OldGuyonaQuad]

Funny Tom lol..

The adater is well worth it, makes a better seal imho.
this is what you said I would need to fabricate or purchase and rig from HD? sorry for the stupid questions.

[CJM]

this is what you said I would need to fabricate or purchase and rig from HD? sorry for the stupid questions.

The adapter Baily is talking about is a machined piece of aluminum, it fits over the air intake side of the carb. The stuff from home depot is just some plumbing fittings and pvc maybe to make it a bit more rigid. The 3 I set up all used the adapter, not sure if the guy does it anymore but a guy in the 400ex section makes them. If Wayne can machine stuff its not to hard really, once you see the carb you will understand why. The 450r intake boot is slightly longer and the R carb wont fit on the 400 intake boot as its a bit short. The carb itself is also slightly larger than the stock carb. The adapter fixes these two issues, what you have to do to install one is basically sand off (I used a dremel) a small ridge on the carb intake and then use something like jb weld or (my preferred choice) gray rtv.

[OldGuyonaQuad]

ok got it thanks again buddy
bailey sounds like I can use it let me know what you want for it

[Baileygunns]

Make me offer... It's new, I had a few made awhile back and never used this one.

[OldGuyonaQuad]

Make me offer... It's new, I had a few made awhile back and never used this one.

$50 free shipping?

I just need to purchase a carb first

gonna bid on this

http://www.ebay.com/itm/251492920579?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

[Baileygunns]

Thats to much... I sent you a PM

[CJM]

Bailey is good people :)

That carb looks great, but dont overpay for it.

[OldGuyonaQuad]

Thats to much... I sent you a PM

man you are a tough negotiator. how about I throw in a rim job....................from Marc :D :P

thanks Bailey

[CJM]

hey! dont be volunteering me for nuttin! lol.

[OldGuyonaQuad]

hey! Dont be volunteering me for nuttin! Lol.

:d

[CJM]

Check this: http://www.trx450r.org/forum/97-parts-accessories/296857-2005-carb.html

[OldGuyonaQuad]

thanks Marc, he saw me inquiring on another ad and pm'd me. Im hoping to get that one on ebay cheap.

[OldGuyonaQuad]

Piston, gasket and cam shaft arrived Friday. cylinder being bored Tuesday. Paid for carb and adapter. Hopefully they come in next week before Friday and maybe I can get this thing back together in a week and a 1/2 or so.

[Baileygunns]

I'll have the adapter to you before Friday... I'll get it out tomorrow USPS priority and it should be there Wednesday maybe Thursday. I'll PM a tracking number tomorrow.

[OldGuyonaQuad]

thanks Bailey

[OldGuyonaQuad]

Adapter received thanks again Bailey.......left positive feed back ;)
thanks again

Carb arrives tomorrow Wayne bore out the cylinder today. Dropping off parts to Lonnie tomorrow