* Motor Build Thread *

[shortline10]

As a power sports mechanic my favorite thing in the shop to do is rebuild motors .

Let’s see them !!!

I’ll start off with a couple recent ones

2005 Yfz450
Big bore and locker clutch complete rebuild ,
Was brought to me as you see it in the first picture and missing lots of parts .

[shortline10]

Next is 2012 KTM85sx
Ktm in general are always a PITA , for me anyway :lol:
Complete rebuild , sorry no naked pictures on this one

[shortline10]

2000 KX80 complete rebuild , awesome little motors .

[shortline10]

2003 kx250 complete rebuild .

[shortline10]

2004 CRF450r , cylinder head went threw hell but I was able to save it .
Complete rebuild .

[atc300r]

I rebuilt this motor from spare parts its a 83 250r .Put in all new bearings,seals, low hour crank, 60 over Wiseco .Its going in my fooler quad.258023

[atc300r]

My 300r built this up couple years ago.Built on a low hour 84 250r case.Has 25 over oem piston .All new bearings, seals and gaskets
258024 258025

[shortline10]

A few open heart surgery photos !!!!

[yaegerb]

A few open heart surgery photos !!!!

I will add some of mine later. Just a quick thought.....banshee motors are my favorite. So easy and intuitive in the case dept. I wish Honda had done something similar.

[Gabriel]

Still much to do. Gotta do something about those tired old wire sleeves for sure as well as that hideous Hi-Low selector.

65.5mm 10.25:1 wiseco
All new everything. Bearings, seals and clutches.
https://i.imgur.com/xLt4dB9.jpg?1

[El Camexican]

1992 250 Yamaha

258051

258052

2002 300 KTM

258053

258054

258055

258056

258057

1975 1200 Kawasaki

258058

1983 1327 Suzuki

258059

258145

258146

1992 944 Ducati

258060

1985 250 Yamaha

258061

258062

258063

[DAM shop]

That is a Bad arse Z1 Nico, what's it's story?

[El Camexican]

That is a Bad arse Z1 Nico, what's it's story?

Glad you asked. Most of that engine was in the World record Pro Mod bike of 1976. 9.44 @ 146mph set in Houston TX. First 1200cc Z1 ever built and the first hand made drag pipe EVER built. Terry and Byron copied and marketed it (I shiit you not). Would you believe this idiot sold it for $200 bucks? ( I shiit you not) they called it the ‘Dinko’ pipe.

Len Heromachuck (don’t trust my spelling) built it and rode it back then. He was a Kawi dealer out of Kenora Ontario that did the mods on all the sponsored Kawi sled engines in the 70’s. Everything but the tank is one off fiberglass. Most of the frame I built as Len’s set up was as scary as hell. Lighter than mine, but the think never went straight for more than 10’ at a time. I made it longer sync wider and unfortunately heavier, but I was bracket racing, not trying to set world records.

Len got into nitro bikes and sold it to Eddie Hart who matched the 9.44, but only got to 142mph.

Eddie had type one diebetes and was going blind, so he sold me the bike in 91 or 92. I promptly blew it up and destroyed much of the engine. I took out a $10,000 loan (last time I ever went into debt in my life!) and rebuilt the whole bike from the frame up.

I managed a 9.56 at 146mph one day and sold the bike to a kid I had introduced to drag bikes. Had to let it go when I moved to Mexico in 99. He’s totally redone it. It has a car tire now and has run 8’s.

I love sharing the story, thanks for asking buddy :beer:

[El Camexican]

here's a couple of my personal engines and some that have come through my shop.....

KTM 65 SX
258068

1984 200E
258069

1986 Tri-z
258070

1985 200X
258071

1986 250R
258073
258072

1982 250R
258076

1994 Polaris 650
258078

1983 300R
258075

1985 250R
258077

2004 Banshee
258079

Dude, your stuff is art.

[yaegerb]

Dude, your stuff is art.

Thanks bro. I was trying to fix some pics and had to redo my entire post....ugh.

[yaegerb]

Couple of my personal motors and others that have come through my shop..

1985 200X
258097

1986 250R
258098
258099

1983 300R
258100
258101

1983 200E
258102

2004 Banshee
258103
258104

2017 KTM 65 SX
258105

1985 250R
258106

Polaris 650
258107

[El Camexican]

I need to scan photos of my RZ 500 rebuild from 89 if I can find them. God I’m old LOL!

[DAM shop]

Glad you asked. Most of that engine was in the World record Pro Mod bike of 1976. 9.44 @ 146mph set in Houston TX. First 1200cc Z1 ever built and the first hand made drag pipe EVER built. Terry and Byron copied and marketed it (I shiit you not). Would you believe this idiot sold it for $200 bucks? ( I shiit you not) they called it the ‘Dinko’ pipe.

Len Heromachuck (don’t trust my spelling) built it and rode it back then. He was a Kawi dealer out of Kenora Ontario that did the mods on all the sponsored Kawi sled engines in the 70’s. Everything but the tank is one off fiberglass. Most of the frame I built as Len’s set up was as scary as hell. Lighter than mine, but the think never went straight for more than 10’ at a time. I made it longer sync wider and unfortunately heavier, but I was bracket racing, not trying to set world records.

Len got into nitro bikes and sold it to Eddie Hardy who matched the 9.44, but only got to 142mph.

Eddie had type one diebetes and was going blind, so he sold me the bike in 91 or 92. I promptly blew it up and destroyed much of the engine. I took out a $10,000 loan (last time I ever went into debt in my life!) and rebuilt the whole bike from the frame up.

I managed a 9.56 at 146mph one day and sold the bike to a kid I had introduced to drag bikes. Had to let it go when I moved to Mexico in 99. He’s totally redone it. It has a car tire now and has run 8’s.

I love sharing the story, thanks for asking buddy :beer:

cool story nico, whats the 1327 Suzuki running?

[El Camexican]

cool story nico, whats the 1327 Suzuki running?

Haven’t run it yet, not sure if I ever will. It would need bars and a slick to get any kind of a number.

Probably the most useless thing I’ve ever owned, but it’s fun to stand around it and drink.

258108

[knappyfeet]

Haven’t run it yet, not sure if I ever will. It would need bars and a slick to get any kind of a number.

Probably the most useless thing I’ve ever owned, but it’s fun to stand around it and drink.

258108

Nice!

That Kawasaki makes my dick hard.

Edit........ I don't think I'm every going to do another motor again. I'll just have one of you fine craftsman do it for me! Nice Polaris yaegerb!

Edit again........ gas $1.18?

[El Camexican]

Nice!

That Kawasaki makes my dick hard.

Edit........ I don't think I'm every going to do another motor again. I'll just have one of you fine craftsman do it for me! Nice Polaris yaegerb!

Edit again........ gas $1.18?

LOL! Per Liter, so X 3.7 = $4.37 CND % 1.3 = $3.36USD per gallon. Not so cheap eh?

[stoshu]

Haven’t run it yet, not sure if I ever will. It would need bars and a slick to get any kind of a number.

Probably the most useless thing I’ve ever owned, but it’s fun to stand around it and drink.

258108

Did you Photoshop all the Harleys out of that pic? Should be 50 of them parked right there

[El Camexican]

Did you Photoshop all the Harleys out of that pic? Should be 50 of them parked right there

I was planning to stop at your place that day, but when I didn't see the truck I kept going and arrived about an hour earlier that expected. The Harley's eventually showed up and one by one the riders walked by pretending not to look at the Jap crap.:lol:

[El Camexican]

For all you 'merican' RD/RZ 350 and Banshee engine fans, here's what the rest of the World had access to in 1985. Ironic that the one country that prohibited their entry back then is the place that most of them ended up 30 years later.

258123258124258125258126258127258128258129

If anyone out there has one of these and would like to trade it for my left testis, please send me a PM.

[El Camexican]

Some others I found in the photo stack. Sorry they're all in frames.

1978 Suzuki GS750 punched out to 916cc. Most reliable 4 cylinder engine even built in my opinion.

258130

1981 Yamaha XS1100 made into a 1260cc shaft drive death machine. Not my bike, but that's me on it making one of the scariest passes of my life. Had to wear the owners helmet because I wasn't licensed for under 9.99 at the time.
258131

1985 Suzuki GS1150
258133
258134

197? Honda CBX 1000. Not mine, but if that engine doesn't make your heart skip a beat, you should get to the doctors ASAP
258132

[Joseph Farrow]

Here are some 90 Builds from the past. We have a few more in the works.

180cc Pauter Motor
258140258141

180cc Helm Motor
258142

180cc Pauter Motor
258143258144

[barnett468]

.

The belly of the beast. Ultra rare, 1980 YZ250 6 speed. It locked up on me last weekend during a race, so I am just doing a repair and throwing in some new bearings and seals. Second gear on the pinion/clutch shaft is starting to spal a little on the drive side and it is not available, so I am going to have it cryo treated then I will reverse it on the shaft so the damaged part will be on the decel side where it will get very little use, and should therefore last nearly forever. The left crank bearing journal is also worn around .001" and it was spinning inside the bearing a little sometime during its life, so I am going to put a few light center punch marks around it which will make it tight in the bearing again.


https://i.ebayimg.com/images/g/fgMAAOSwzsNct8Ya/s-l1600.jpg

https://i.ebayimg.com/images/g/wAIAAOSwcfNct8gm/s-l1600.jpg

https://i.ebayimg.com/images/g/FwkAAOSwVbhct8ih/s-l1600.jpg

[Tacky]

Builds? Done a few.

99 450s foreman...

Bored 2mm, web racing camshaft, wiesco 10.2 to 1 piston, highlifter outlaw centrifugal clutch kit with springs up the rpm's 400 rpms before engagment, ebc dirt racer change clutch with heavy duty springs, new centrifugal clutch shoes, new cam chain, tensioner, ported and polished head, new lower bearings throughout. Went from a 130 to a 155 main jet. Pretty much everything questionable was replaced. The HMF exhaust really makes use of the motor mods, and its tuned to run with the dual snorkels it has. Plenty of power to turn the 29.5 outlaws with the locker in the front differential pulling positive. Actually twisteda rear axle in half from the torque.


Did the same mods to a 350 rancher 2002 model, big improvement.

Built several 450 foremans from the crankcase up.maybe 4 or 5 mostly close to stock.

2001 250 rancher that the piston had turned sideways in the jug from being ran without oil.

Late 90's xr250, timing jumped and hit the intake valve making it a ping pong ball in the cylinder, chewed up the head, and punched a hole in the piston.

1985 xl600r all new top end, bored, new cam chain, valves, tensioners, etc. Wish I still had that bike, dual carb ran like a 4 barrel on a 350 chevy.

Most recently my 1985 200x. New clutch plates and discs, new kickstart assembly, all new bottom end gaskets and seals, new did cam chain, new valves, new 66mm wiesco 12.1 to 1 piston, polished and ported head, web cam 214 camshaft with springs, etc, etc. Let me if I can find some pics.

[atc300r]

Some others I found in the photo stack. Sorry they're all in frames.

1978 Suzuki GS750 punched out to 916cc. Most reliable 4 cylinder engine even built in my opinion.

258130

1981 Yamaha XS1100 made into a 1260cc shaft drive death machine. Not my bike, but that's me on it making one of the scariest passes of my life. Had to wear the owners helmet because I wasn't licensed for under 9.99 at the time.
258131

1985 Suzuki GS1150
258133
258134

197? Honda CBX 1000. Not mine, but if that engine doesn't make your heart skip a beat, you should get to the doctors ASAP
258132
Honda cbx 6 one of my favorite bikes would like to get one

[yaegerb]

Newest motor out the door to its loving new home. You may see this one at the track at the Ashtabula 50th anniversary this year. over 2.5 years in the making, lots of love between myself and Selvy on this one.

[shortline10]

Fresh off the bench 05 CRF250r , lost a crank so it got a complete rebuild .