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Honda 400EX Big Bore Kit and FCR Carburetor Install
Рет қаралды 35,862
Күн бұрынInstalling a 416cc big bore kit and FCR39 carburetor on a Honda 400EX quad.
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@conrad792 3 ай бұрын
I appreciate this video. Thank you.
@TomsTinkeringandAdventures 3 ай бұрын
You’re welcome!
@justinreece9108 4 жыл бұрын
Great job! Even better personality. Enjoyed this video! Thanks
@TomsTinkeringandAdventures 4 жыл бұрын
Justin Reece thank you, made my day!
@Jasonoid 3 жыл бұрын
Great video, just purchased a 1999 400ex and it's in okay shape. Doesn't burn too much oil haha. Probably will do this process eventually but will use the stock carb. Thanks for the video!
@TomsTinkeringandAdventures 3 жыл бұрын
Awesome engines. The stock carburetor is pretty decent, changing to this one requires a of trial and error to dial in. Thanks for watching.
@timworm99 3 жыл бұрын
Great video getting ready to put a 440 kit on my 400 seized up the piston. I’ve never rebuilt a four stroke so thanks for the video
@TomsTinkeringandAdventures 3 жыл бұрын
Hopefully it’s a bit helpful, get a manual and follow it along with the video and you’ll be fine. Come back and let me know how it goes.
@btnhfool 4 жыл бұрын
best 400ex big bore diy ive seen
@TomsTinkeringandAdventures 4 жыл бұрын
Thanks, I had not ever worked on one of these before but they are just like most air cooled Honda's. The carb was a pain, but the guy I did it for said it rips.
@btnhfool 4 жыл бұрын
@@TomsTinkeringandAdventures may consider that carb swap. Seeing new crf450 carbs go for under 180 bucks. Seems like it just bolted on and ran fine, besides cutting the top a bit that looked like a pain
@TomsTinkeringandAdventures 4 жыл бұрын
btnhfool well now you kind of see what needs to be done. Might be a better way, but it worked so...
@simonmears1726 Жыл бұрын
My xr400 blowing heaps of smoke thought is was valve stem seals which it was also wiesco piston damage went 440 and got head done much better no smoke 💰💰💰
@TomsTinkeringandAdventures Жыл бұрын
Nice! Do you notice a good increase in power?
@ftby59mikeD 4 жыл бұрын
Well done sir! Funny how the 'bolt on mods' always lead to custom fabrication. Owner will hopefully break it in correctly so he can reap the increased power. Carry on!
@TomsTinkeringandAdventures 4 жыл бұрын
FTBY59 Mike D it’s pretty common, right?! I haven’t heard back yet, hope it’s running solid.
@princesszelda6764 3 жыл бұрын
I have a 2001, my husband and I have been debating, the guy I bought mine from said it has the big bore kit, but my husband isn't convinced it does lol or he just doesn't want to admit mine is 'more powerful' then his 2000 🤣 but this video helped a lot with that
@TomsTinkeringandAdventures 3 жыл бұрын
Maybe you’re just a faster rider? 😀.
@the_gold_canopy 2 жыл бұрын
That quad is good for one thing: ripping out the engine, pulling out the lower end, and installing on a XR400R. 🔧
@TomsTinkeringandAdventures 2 жыл бұрын
That’s funny, I bought a used 400 EX engine and stripped it down for the parts to build an electric start XR400R! 😂😂
@the_gold_canopy 2 жыл бұрын
@@TomsTinkeringandAdventures exactomundo! 🔧
@lukeworrell8479 4 жыл бұрын
That machine is super clean, great video work too
@TomsTinkeringandAdventures 4 жыл бұрын
Yes, very nicely maintained quad. I will be doing some more modifications for this guy sometime coming up, so expect to see another video at some point. Thanks for watching.
@a.boss.__09 4 жыл бұрын
Sounds Just like mine brotha I got the same one but 06
@TomsTinkeringandAdventures 4 жыл бұрын
Bossed up Alv they are good machines.
@alexischatigny6183 4 жыл бұрын
Does the niche industries cylinders are reliable? How long they last?
@christophermiller3268 5 ай бұрын
Looking at how you did that with the carb. Couldn’t you have done that thing with the clamp from the motor side to make all the other fabricating easier
@TomsTinkeringandAdventures 5 ай бұрын
Maybe? I didn’t find any information so I just went with what worked. Could improve it if I were to do another one.
@insanetaco98 2 жыл бұрын
Just taper bore the stock carb or run the FCR from the yamaha. But like I said modifying the oem carb is much better and just as effective
@TomsTinkeringandAdventures 2 жыл бұрын
I suppose there’s half a dozen ways it can be done. As long as you’re riding, it’s all good!
@Mudmowerdiesel 4 жыл бұрын
Great video
@TomsTinkeringandAdventures 4 жыл бұрын
I appreciate it, had to do some problem solving on that carb. Thanks for watching.
@willwade3317 4 жыл бұрын
That was a great video very informative
@TomsTinkeringandAdventures 4 жыл бұрын
Will Wade thanks for watching.
@GrowYourOwnFun 3 жыл бұрын
Really nice video, thank you for taking the time to share it.
@TomsTinkeringandAdventures 3 жыл бұрын
Thank you so much!
@GrowYourOwnFun 3 жыл бұрын
@@TomsTinkeringandAdventures bought a 400ex basket case and another one that’s locked up. Hopefully make two runners out of them and sell one to pay for my Honda habits
@TomsTinkeringandAdventures 3 жыл бұрын
@@GrowYourOwnFun that’s how you do it! I like deals like that.
@alvarezgilbert01 4 жыл бұрын
Nice 👍🏻
@TomsTinkeringandAdventures 4 жыл бұрын
Gilbert Alvarez it ran strong after this.
@esehoja 3 жыл бұрын
un trabajo estupendo Tom, solucionando los "problemas" que surgen, enhorabuena por tus trabajos, son muy instructivos, me gustaría ver un video detallado de como ajustar correctamente la válvula del descompresor de una xr 400, ya que en el que tienes de ajuste de válvulas no lo explicas y no se ve, saludos desde el sur de España
@TomsTinkeringandAdventures 3 жыл бұрын
I don't speak Spanish but used Google translate. Thank you for watching, if I get a chance to adjust the decompressor valve I will make a video of it. Would love to explore Spain some day.
@esehoja 3 жыл бұрын
@@TomsTinkeringandAdventures pues si alguna vez vienes al sur de España(Andalucía)te invitare a unas cervezas bien frias,un buen almuerzo y nos haremos una estupenda ruta en moto,saludos
@TomsTinkeringandAdventures 3 жыл бұрын
@@esehoja Muy bien, gracias!
@robertcarlson6632 2 жыл бұрын
Nice Ta Work On Good Shit,Sounds Great, Compression Yo.
@TomsTinkeringandAdventures 2 жыл бұрын
I just got to see this quad again, it’s still working great.
@anonymous-tn6ij 3 жыл бұрын
Nice video your front tires are mounted backwards
@TomsTinkeringandAdventures 3 жыл бұрын
Interesting, it’s not my quad but I guess they are just installed on the wrong side then.
@alexrose1485 Жыл бұрын
can we get the link of the instructions please or 400ex manual thank an awesome vid
@TomsTinkeringandAdventures Жыл бұрын
I don’t have a link. I suggest you join a 400EX forum or do an internet search to find one.
@Yavi250r Жыл бұрын
Hey are those front air scoops , or whatever made by you? , or where can I find them, that mod is a must , especially with a big bore kit
@TomsTinkeringandAdventures Жыл бұрын
Oh, I wish I made those…they are pretty cool. I don’t know what company makes them, sorry.
@jnks350z Жыл бұрын
Hey what are the value adjusted to gap clearance
@TomsTinkeringandAdventures Жыл бұрын
The exhaust valves should have . 005 inches of clearance, and the intake valves should have . 004 inches of clearance.
@samhoffer Жыл бұрын
The fcr has a number of different jets, what are all the specs with the jetting you did for this? Long shot if you will respond but it would be super helpful as I am gonna be putting a trx fcr on my built 400ex here soon, thanks Sam
@TomsTinkeringandAdventures Жыл бұрын
Honestly, it was an eBay purchase as a takeoff from a stock Honda 450 quad. Didn’t touch it, stock jetting.
@youssefallali716 Жыл бұрын
Thank you for thos video, is the camshaft without decompression system working perfectly ? The engine starts without any problems? And it maintain the engine working in low rpm ??? Im asking you because my bike NX400 is having exactly the same engine, the decompression part is doing some thiking, i think that the spring si no more doing the job im thinking to remove the decompression system but dont know what can occure as result
@TomsTinkeringandAdventures Жыл бұрын
Yes, it works fine without it. The only time it could be a problem is if the battery is weak.
@youssefallali716 Жыл бұрын
@TomsTinkeringandAdventures thank you for your reply, i observe that you call it hotcam if im not mistaking, what is the differemt between OEM one and this one you installed ?, can i just kill the decompression as well as its lubricating hoses and try it ?
@TomsTinkeringandAdventures Жыл бұрын
@@youssefallali716 Hot Cam is the aftermarket brand name. It probably has a different grind, duration, lift, etc.
@ViolentResults Жыл бұрын
Got to ask, how did you get the timing chain back on the crankshaft while also putting the cam and head back on? Getting my tail kicked on that one.
@TomsTinkeringandAdventures Жыл бұрын
It’s a little bit of a pain. Stop, drink a beverage, relax and then try again. Got a manual? Lots available online.
@miguelandrade6124 Жыл бұрын
What jetting did you use? i have a 2004 honda 400ex with a 440 kit, slip on exhaust, kibblewhite valves, and intake but im having trouble with the jetting
@TomsTinkeringandAdventures Жыл бұрын
I really don’t remember. I didn’t mess with the jetting, this carb came off a TRX450R so whatever was in it has been working well.
@nvmcrider8475 2 жыл бұрын
Great video Tom. Where do you get the electronic shop manuals? Is there a website where you buy them?
@TomsTinkeringandAdventures 2 жыл бұрын
Thank you! It all depends on the job, sometimes I have them provided to me by whoever owns the vehicle. Sometimes I have luck finding them on internet forums, and other times I purchase them.
@nvmcrider8475 2 жыл бұрын
@@TomsTinkeringandAdventures Thanks
@owengendron8330 Ай бұрын
what jets did you use because i did the same thing to mine but it has a terrible exselerasion
@TomsTinkeringandAdventures Ай бұрын
@@owengendron8330 I honestly can’t recall. Should have put that info in the video. I did this for a guy I know, I think he did some online research and we started there, it’s pretty close but he has asked me to dial it in. If I do, I’ll make another video.
@owengendron8330 Ай бұрын
@@TomsTinkeringandAdventures ok thanks
@adammikanowicz6882 3 жыл бұрын
Move the carb back to the air box. No cutting.
@TomsTinkeringandAdventures 3 жыл бұрын
Is there a longer intake available? I guess there are a few different ways to make this work. Thanks!
@mikecolwell5387 3 жыл бұрын
@@TomsTinkeringandAdventures your supposed to use the 450 intake boot from what I'm hearing
@TomsTinkeringandAdventures 3 жыл бұрын
@@mikecolwell5387 interesting, thanks.
@ryy597 2 жыл бұрын
Is the fcr worth the hassle? I was thinking about going 450r carb for smoother powerband. I had a modified fcr on my 400ex and it would struggle alot in the lower rpms
@TomsTinkeringandAdventures 2 жыл бұрын
The guy who I did this for said that he loves it. I suppose it all depends on how you have it set up.
@davidblum_ 3 жыл бұрын
How long did you heat up the manifold I’ve tried with a blow dryer but it’s not working lol might need to buy a heat gun
@TomsTinkeringandAdventures 3 жыл бұрын
It takes a while, kind of got to be careful with the heat gun or it will melt! Good luck, I guess the quad is working well for the guy.
@jacobsoffroad 3 жыл бұрын
Looks like you forgot the o-ring that goes around the base of the cylinder.
@TomsTinkeringandAdventures 3 жыл бұрын
I sure hope not, but I can’t remember!
@davidblum_ 3 жыл бұрын
That aftermarket cylinder doesn’t use it
@TomsTinkeringandAdventures 3 жыл бұрын
@@davidblum_ thank you.
@donniegardner6294 8 ай бұрын
How do you like the ct racing exhaust?
@TomsTinkeringandAdventures 8 ай бұрын
This isn’t my quad but the exhaust sounds good, this quad is nicely equipped.
@connormarino4389 4 жыл бұрын
What cam was that and what did you set the valves to?
@TomsTinkeringandAdventures 4 жыл бұрын
I didn’t buy the cam, not sure but I think he said it was a XR400R cam of some sort. Valves were set to factory specifications.
@liamsilver4843 3 жыл бұрын
I always wonder....HOW RELIABLE IS THIS?
@TomsTinkeringandAdventures 3 жыл бұрын
All I could say is, if you add performance you usually remove reliability. There’s a fine line there, sometimes engines are so well built that you can add a bit of performance without adversely effecting reliability.
@droermontana6549 3 жыл бұрын
did you just reinstall the head with stock valves and springs ?
@TomsTinkeringandAdventures 3 жыл бұрын
Yes, the guy that I did this for didn’t want to do any modifications to the head.
@JohnnyB62 4 жыл бұрын
I’m trying to figure out if I should buy one in these and put it on because my quad is burning oil cause the piston is wobbly.
@TomsTinkeringandAdventures 4 жыл бұрын
Well the big bore is about the same price, not sure how much it really helps power wise. I think you can go up to a 440 or so without doing case work.
@JohnnyB62 4 жыл бұрын
Ok thansk
@traviswagner9114 4 жыл бұрын
What would you say the biggest reason the 400x burns oil? My son just bought one and it smells like it burns oil the whole time he ts running. Thanks
@mikecarranza7718 Жыл бұрын
What model number carb ot what's it off off I want to do this
@TomsTinkeringandAdventures Жыл бұрын
It’s an FCR-39 carburetor. Lots of motorcycles and quads use this carb, pretty sure this one was from a Honda TRX450?
@Mr.Lonely-682 5 ай бұрын
What throttle cable did you use? thanks!
@TomsTinkeringandAdventures 5 ай бұрын
I can’t remember if we used the stock cable or the one for the TRX450, sorry.
@Mr.Lonely-682 5 ай бұрын
@@TomsTinkeringandAdventures just in case anyone else asks, the trx cable does not work with the FCR carburetor. I tried it and the TRX cable is a little thinner on the thread
@TomsTinkeringandAdventures 5 ай бұрын
@@Mr.Lonely-682 thanks, I guess we must have had whatever came with the carburetor. Sorry I couldn’t recall!
@Warrendiehl 4 жыл бұрын
This is a stupid question but do you need to drain the oil to do a big bore install?
@TomsTinkeringandAdventures 4 жыл бұрын
Not a stupid question....don’t need to drain oil. I usually don’t, so I can do a change after a short break in run. But it’s probably best to have fresh oil to begin with. You considering doing a top end rebuild?
@Warrendiehl 4 жыл бұрын
Tom's Tinkering and Adventures My 400 is a 2014 I bought it left over stock so I haven’t put that many hours on it, I just want more power out of it so I wanted to do a big bore and stage 3 cam with a 11:1 piston
@cameronbauer8154 4 жыл бұрын
Does this make a significant increase in power?
@TomsTinkeringandAdventures 4 жыл бұрын
The guy I put it together for said he’s very pleased with it.
@alansterling3481 4 жыл бұрын
is that nomad still hanging around? What are you doing in May?
@TomsTinkeringandAdventures 4 жыл бұрын
Riding to the east coast?
@alansterling3481 4 жыл бұрын
Or maybe half way. I still have to make sure the ball and chain is till onboard.
@aqeelkhalaf8 2 жыл бұрын
Hey there, what do you think about this carb ? Should i go for it ?? I need more power For my ex400
@TomsTinkeringandAdventures 2 жыл бұрын
My buddy says that it works well. Obviously required some work to get it on.
@matthewjohnson2495 2 жыл бұрын
The 40mm Mikuni pumper carb fits under the gas tank a little better than the FCR carb does and the FCR doesn’t have the adjustability that the Mikuni has and your factory throttle cable will work with the Mikuni also. I have a 400ex with the 416 JE kit , hot cam and Mikuni and a FMF power core4 exhaust system. It’s like getting on a different bike and the torque difference was the biggest noticeable gain
@TomsTinkeringandAdventures 2 жыл бұрын
@@matthewjohnson2495 great input, thank you. I have ran the Mikuni on a DR650 and a KLR650. Didn’t know it was a good fit for the Honda 400, may consider it for my XR400R.
@aqeelkhalaf8 2 жыл бұрын
@@matthewjohnson2495 thank you for this info bro, i will think about this option too 👍🏼
@aqeelkhalaf8 2 жыл бұрын
@@TomsTinkeringandAdventures thank you for answering me bro, so what do you think i should go with ? Fcr or the mikuni ?
@Pavestar1 3 жыл бұрын
How much lighter was throttle pull
@TomsTinkeringandAdventures 3 жыл бұрын
I really can’t recall, sorry. I guess it is running really well, though.
@eliteoutdoors9278 2 жыл бұрын
is that carb of a bike or quad
@TomsTinkeringandAdventures 2 жыл бұрын
Honda 450 quad.
@davidblum_ 3 жыл бұрын
Do I have to remove the hot start so it will turn on and the accelerator electrical wires I’m having trouble starting mine up
@TomsTinkeringandAdventures 3 жыл бұрын
The TPS wires aren’t required. Hot start can stay. Double check everything.
@davidblum_ 3 жыл бұрын
Ok my tank was low on gas I think that might be the problem so if I leave the tps it shouldn’t affect anything right?
@TomsTinkeringandAdventures 3 жыл бұрын
@@davidblum_ correct, shouldn’t need it.
@davidblum_ 3 жыл бұрын
@@TomsTinkeringandAdventures it starts first push now but my problem is I have it without air filter like the one your working with in the video I haven’t touch the carb besides the idle I took it down the street and she doesn’t want to accelerate should I loosen the fuel to air screw? What did you set it to
@TomsTinkeringandAdventures 3 жыл бұрын
@@davidblum_ it’s likely going to be some carb adjustment needed. Maybe main jet, needle adjustment, etc. You need to get a filter on it to be sure, then it’s trial and error depending on your riding altitude.
@MrOmarchingon 3 жыл бұрын
How much did you charge the guy?
@TomsTinkeringandAdventures 3 жыл бұрын
I don’t remember but I always give a good deal.
@joshsmith8244 3 ай бұрын
Where can I get the manual?
@TomsTinkeringandAdventures 3 ай бұрын
I suggest finding a model specific online forum, usually someone there can share a link.
@joshsmith8244 3 ай бұрын
@@TomsTinkeringandAdventures thankyou
@danickarseneau2409 4 жыл бұрын
What is the jetting you ended up with the fcr on the 400 ?
@TomsTinkeringandAdventures 4 жыл бұрын
I would have to watch the video again to see if I mentioned what I installed, the owner said he hasn’t changed it and it has been working well.
@daveycmusic8903 4 жыл бұрын
@@TomsTinkeringandAdventures You did not mention what jetting you used. EXTREMELY important info.
@Apachefog 4 жыл бұрын
35:47 he says the jetting.
@ryy597 2 жыл бұрын
En a tu builder une avec ste sorte de carb la? Trx450r 06+?
@almost_godly1578 3 жыл бұрын
if i put on a 440 kit and exhaust on mine will i have to upgrade my carb or can i mess with the jetting
@TomsTinkeringandAdventures 3 жыл бұрын
The stock carburetor can be jetted for that, probably just do a bit of research and you can find a good baseline setup for it.
@tylerratliff703 3 жыл бұрын
What big bore kit did you use in this?
@TomsTinkeringandAdventures 3 жыл бұрын
I honestly can’t remember, it was a mid sized one....not the 440.
@chrisbrown8666 2 жыл бұрын
No problems with my 440 upgrade, new performance cam,valves and exhaust ,in the process of tuning the jetted carb . She goes like a scared cat!
@michaelkarell4559 2 жыл бұрын
@@chrisbrown8666 What did you go to for jetting? I ask because i recently accuired a 2002 with a 440 kit on it and the carb is way off.
@davidblum_ 3 жыл бұрын
What jets are you running?
@TomsTinkeringandAdventures 3 жыл бұрын
I don’t remember, did a bit of internet searching and used the suggestions I found there. It seems to be working great for the guy who owns it!
@davidblum_ 3 жыл бұрын
@@TomsTinkeringandAdventures thanks
@saleemhamemun7362 3 жыл бұрын
What Comp. Ratio is it
@TomsTinkeringandAdventures 3 жыл бұрын
I don’t remember what the specifications were on that piston, but it wasn’t much more than stock.
@kslvlkdfhkvhkfviwehbhjhj 2 жыл бұрын
One word.........tripod. You're making me sea sick!
@TomsTinkeringandAdventures 2 жыл бұрын
And you didn’t even have to go on a boat! Yes, I use the tripod or stand when I can but it’s not ideal for getting in for closer shots. Take a Dramamine and you’ll be fine! 😂😂
@a.boss.__09 4 жыл бұрын
What’s that thing where they key goes I need one
@TomsTinkeringandAdventures 4 жыл бұрын
Bossed up Alv hmmm, I’m not sure what you’re referring to.
@a.boss.__09 4 жыл бұрын
Tom's Tinkering and Adventures where they key goes te red plastic in the front near the bars
@TomsTinkeringandAdventures 4 жыл бұрын
Bossed up Alv ignition switch?
@a.boss.__09 4 жыл бұрын
Tom's Tinkering and Adventures no Above the light there’s the key
@TomsTinkeringandAdventures 4 жыл бұрын
Bossed up Alv yes, the ignition switch. They sell them on eBay for about $10.
@theyzoomers Жыл бұрын
That Kit would run me 800$ lol
@TomsTinkeringandAdventures Жыл бұрын
Yeah, it’s not cheap. I don’t know if it’s worth it if you have a good running engine, but if it’s a rebuild it would make more sense.
@theyzoomers Жыл бұрын
@@TomsTinkeringandAdventures ya I’m thinking going the 440 cheap niche kit bout the quad torn apart n know mo history besides “timeing chain” strched so he took it apart
@TomsTinkeringandAdventures Жыл бұрын
@@theyzoomers I don’t know how the Niche cylinders are for the Honda, but the Yamaha Rhino ones are not good. I would research it before you waste money…but maybe they have a better record for the 400EX.
@theyzoomers Жыл бұрын
@@TomsTinkeringandAdventures I’ve done lots lol n I hear nothing but good about them it’s 130$ vs 800$ lol
@theyzoomers Жыл бұрын
@@TomsTinkeringandAdventures I’ve seen this kit ur running in this n they have niche cylinders but charging out the ass
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