ATV Florida Forum

Just started riding again and noticed I need a lot more power out of my 400, can't exactly afford to get a 450 and build it for motocross so the next best thing is beef up the 400 to a 440!

Last ride I got out of her before the engine said NO MORE
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/729238_592583414092089_1735928583_o.jpg?oh=46dbab15b43320a55116d38633dd5a63&oe=5160C215&__gda__=1365363572_98bfbf7ba003f4a3e16b26ba6c379bc8)

Started the tear down
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/855381_592583234092107_636946834_o.jpg?oh=8f1782453279a6e57c10a22f60acf606&oe=5160BEA1&__gda__=1365403472_b5e66452e25128b3e69737acff053d15)
Pretty damn dirty down there

Started buying parts!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/730166_596046023745828_1408161662_o.jpg?oh=804ef0564f316aeefe123cb6d13f831b&oe=51615F08&__gda__=1365402281_f505e80cd9cda6346fc35c0f8199aee8)
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/729124_596494423700988_963032709_o.jpg?oh=bf44d4773b1c55b0aad6b866a010eb1b&oe=5160F40B&__gda__=1365407610_7be1ff475d5d3c43d0845c08b16d5fab)

While I was waiting for the big bore kit in the mail I played around with a new color scheme.
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-frc1/v/p240x240/803452_598812503469180_1416130091_n.jpg?oh=249cee57bca41339d48f3edb6bec618e&oe=5160F96A&__gda__=1365377405_0dbff7fc887fd37198808d0203994351)
Didn't like it that much so I'm having them layered in carbon fiber. Should be getting them back monday!

Ups stopped by!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-frc1/v/861684_600632636620500_1692515693_n.jpg?oh=356bde3c75f4c359851482d044b35a70&oe=5160FE3E&__gda__=1365397051_a26ff00529f76521436e576e47cc2691)
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-frc1/v/s526x296/861735_600675809949516_925547531_n.jpg?oh=7b1fa991ca1afc1f00ee43626bda1742&oe=51614A6B&__gda__=1365358515_53db96b828a1565e76c76713475a6cc0)
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-frc1/v/854754_600675766616187_1736485776_o.jpg?oh=cde3a7d786d3e6f65ac755c3614145da&oe=51615144&__gda__=1365391297_337276226697185dd50349cc6bd76525)

Some more speed bumps
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/803955_607813525902411_1229562536_n.jpg?oh=69332242c4b71b69ecb883b6fda40625&oe=5160F7C0&__gda__=1365381985_02d73f25f382fd0d976456c276d4e204)


Been looking for a set of these for the past couple months since they don't make them anymore in the US. There's a company in europe that sells them but they're well over $100 and that doesn't include the shipping cost. Got these for 25 bucks off ebay!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/861799_611174848899612_571779007_n.jpg?oh=3c6218ceaa7112c52505c90431048c94&oe=51615B93&__gda__=1365381282_9e0406566f4a102d4cf0cdc32822af9f)

Now that all my parts are shipped, time to get her naked!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/889336_613114345372329_1323619105_o.jpg?oh=8f10fa3375435aa28264a58f255c900b&oe=51612AAC&__gda__=1365399117_4091c6582a389a0aef70b08bc524cbae)

While I'm waiting for the head to finish being worked on, put my gripper seat in!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/907583_616902554993508_246672973_n.jpg?oh=37a800c94df55170356cd137aa4369c9&oe=5160E9D8&__gda__=1365353385_9653da4b6f2234e26a8a6f9e2780f74f)

Solution to that speed bump I posted above
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/899912_617640654919698_1157944270_o.jpg?oh=5003dfc14b5998e3f0faf85c26a42e27&oe=5160DFE4&__gda__=1365352965_8cf128c79ead34bc5f2a3523ff5d8df8)

More random stuff I needed
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/907762_617997238217373_877297695_n.jpg?oh=50db0186cc1a538ea8cfccf664af7d9b&oe=5161243A&__gda__=1365397643_ec7d1f322970a38508deb035039b4bf3)

Picture of one of my old valves. Is that cupped? Can't really tell
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/908541_617996214884142_1818455221_n.jpg?oh=cbb96c9a335500cc4424856f6f028250&oe=5160C446&__gda__=1365357415_e105b62e702fda42fc379b80eb96a6b7)

Got the head back!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/895237_618008524882911_1216184511_o.jpg?oh=3e576b07f79d76358222debb9d9a797b&oe=516119A8&__gda__=1365402569_b57e6a17a08104471ebad80859617f6b)
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/897136_618009124882851_1341047760_o.jpg?oh=2ca5c89ccf9a3c5a721a4e0e91977ced&oe=5160C5B9&__gda__=1365388568_343dfbff22ffaeb52ccd1dd4e2f8b350)

Had to get the header expanded to fit the rest of the exhaust. Half FMF half yoshi!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/908666_618437494840014_500664035_n.jpg?oh=3b986372c486a45a4d83a3c5d168b6ee&oe=51626A30&__gda__=1365449921_a5b2411e5a9225df9f4667955700c148)

Engine in!
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/896069_618532508163846_919904278_o.jpg?oh=43852bc10466cae4fb031f7b51465598&oe=5162B732&__gda__=1365485315_1f04dc413e0c17e68caab9238d9fa7fa)

(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/v/896294_618532521497178_1469345271_o.jpg?oh=078967583ec53dabd7251077be5233f2&oe=5162FB57&__gda__=1365508790_4c6c19477b0c61655d05b86095a631f2)
More pics to be added over the weekend and monday!

No images?

keep in mind when changing bore size and the way the motor breaths will require large jet changes.

I went from a 148 main jet and a 38 pilot to a 220 main and a 50pilot when I built my 440.

A friend of mine just recently built another 440 and he had a 230 main jet and a 52 pilot.

The difference in power was amazing once we went into the 200 main jet sizes.

Dont buy a dynojet go to www.jetsrus.com (http://www.jetsrus.com) and order from there, you will need more then a few jets not just 3 or 4, maybe like 10.

At jetsrus in the FAQ section there is a excellent write up on how to tune your main jet.

Hope this helps GET THEM PICTURES UP!  8)