Maxout01
VIP Member
This sled is going to be sic! I have want a rev with yami engine for along time now, good to see someone build one!
I have owned two revs, both required new front nuns. Its alot of work to do this, but if you own a doo, your going to have to at some point.
I'm assuming you already took some time to beef the hell out of that area in the doo, but if you didnt, dont forget too. Trust me it does not take much of anything to ruin the front end on those. Just giving you info from my doo experience.
I love this build, cant wait to see it done!!!!
I have owned two revs, both required new front nuns. Its alot of work to do this, but if you own a doo, your going to have to at some point.
I'm assuming you already took some time to beef the hell out of that area in the doo, but if you didnt, dont forget too. Trust me it does not take much of anything to ruin the front end on those. Just giving you info from my doo experience.
I love this build, cant wait to see it done!!!!
dirk_03
Expert
doo
I am not a pioneer in this. There are more yamadoos out there. I can think of 5 or 6 for sure and I'm sure there are other guys who r not on forums as well. A lot of them are in rt chassis though.
I know well about the nun on the doo I have ridden doo for years before coming to yamaha. I love the rev chassis and the yamaha 4 stroke turbo power but hated the yamaha chassis. So this is where we r.
I reinstalled the head on my motor tonight. I ordered a degree wheel so I hope to get that early this week and get the cams degreed and reset. With the lower compression and different cam timing this should really change the power delivery of this motor. From what I have read spreading the lobe centers actually will give more low end torque. And with the turbo we have plenty of high end power. Should be more fun than last year. I may need to put some more weight in the front of the sled!
I hope to post some pictures tommorrow of the motor work.
I am not a pioneer in this. There are more yamadoos out there. I can think of 5 or 6 for sure and I'm sure there are other guys who r not on forums as well. A lot of them are in rt chassis though.
I know well about the nun on the doo I have ridden doo for years before coming to yamaha. I love the rev chassis and the yamaha 4 stroke turbo power but hated the yamaha chassis. So this is where we r.
I reinstalled the head on my motor tonight. I ordered a degree wheel so I hope to get that early this week and get the cams degreed and reset. With the lower compression and different cam timing this should really change the power delivery of this motor. From what I have read spreading the lobe centers actually will give more low end torque. And with the turbo we have plenty of high end power. Should be more fun than last year. I may need to put some more weight in the front of the sled!
I hope to post some pictures tommorrow of the motor work.
dirk_03
Expert
Progress
I was really worried about doing the head shim. That was very easy though. I still need to do the valve timing but i do not think that will be to bad either. Just take my time and get it right. Either way here are some pics.
Vector motor with 3500 stock compression boosted 8-12lbs miles. No signs of denotation!
Powderlites Head shim installed.
Cam gears before removing head.
I was really worried about doing the head shim. That was very easy though. I still need to do the valve timing but i do not think that will be to bad either. Just take my time and get it right. Either way here are some pics.
Vector motor with 3500 stock compression boosted 8-12lbs miles. No signs of denotation!
Powderlites Head shim installed.
Cam gears before removing head.
kinger
VIP Member
- Joined
- Jan 17, 2005
- Messages
- 7,425
- Reaction score
- 1,559
- Points
- 1,963
- Location
- Clear Lake, IA
- Website
- www.piergenius.com
You going to get that cam timing jig for that?
dirk_03
Expert
jig
Powderlites doesn't make a jig for the vector. I will be doing it with a degree wheel, dial indicator and calculator. The jig would be a lot slicker though. And faster. Either way I am not to worried about it. I have read through rxriders post about it quite a few times and am pretty confident in the procedure now. I am more worried about slotting the gears. I have another set though I guess if anything goes wrong.
kinger said:
Powderlites doesn't make a jig for the vector. I will be doing it with a degree wheel, dial indicator and calculator. The jig would be a lot slicker though. And faster. Either way I am not to worried about it. I have read through rxriders post about it quite a few times and am pretty confident in the procedure now. I am more worried about slotting the gears. I have another set though I guess if anything goes wrong.
dirk_03
Expert
motor work continues
Today I was daddy daycare and actually got out to the garage more than I thought I would.
I slotted the cam gears and reinstalled the cams. I think I slotted them the correct way. I have them set where I think 114 lobe centers are. I should be getting my degree wheel by thursday and making a hub for it to mount to the clutch bolt. I am glad that I am doing this work myself. I am saving a lot of money and learning a lot as well.
Also installed the nytro oil pump today as well. It can handle the oiling needs of the turbocharging the vector motor better than the vector one.
I am waiting on the gasket for the oil pan and I will have that back together as well.
Today I was daddy daycare and actually got out to the garage more than I thought I would.
I slotted the cam gears and reinstalled the cams. I think I slotted them the correct way. I have them set where I think 114 lobe centers are. I should be getting my degree wheel by thursday and making a hub for it to mount to the clutch bolt. I am glad that I am doing this work myself. I am saving a lot of money and learning a lot as well.
Also installed the nytro oil pump today as well. It can handle the oiling needs of the turbocharging the vector motor better than the vector one.
I am waiting on the gasket for the oil pan and I will have that back together as well.
rxrider
Jan-Ove Pedersen
- Joined
- Apr 25, 2003
- Messages
- 7,355
- Reaction score
- 64
- Points
- 1,753
- Location
- Lakselv - 70N & 25E
- Country
- Norway
- Snowmobile
- 2014 Phazer XTX, 2013 Phazer RTX, 2008 Apex RTX, 2007 Warrior, 2006 Attak
One problem with a jig, you will still not know what the real position of the cams are. I like the degree wheel better even tho it takes more time with the wheel, the dial, and the abacus 
kinger
VIP Member
- Joined
- Jan 17, 2005
- Messages
- 7,425
- Reaction score
- 1,559
- Points
- 1,963
- Location
- Clear Lake, IA
- Website
- www.piergenius.com
Awesome man maybe some day you'll inspire me to dig into my engine till then I just dont have the guts!
How do you know the nytro pump is better then the vector one? Is it a straight bolt on? I never heard there was a difference thought it was the same pump for all yam 4 strokes.
How do you know the nytro pump is better then the vector one? Is it a straight bolt on? I never heard there was a difference thought it was the same pump for all yam 4 strokes.
dirk_03
Expert
engine work
Kinger, the motor work has reallu not been bad. Ii have followed the shop manual and it has been pretty easy. My degree wheel should be here before the weekend so then I can get the cams degreed and set.
The reason I went with the nytro oil pump is that is what was reccomended by powderlites. They have not steered me wrong yet so I am doing what they say. They also told me to gas port the pistons but I really didn't wanna pull the motor apart that far. I think that the nytro pump must have more pressure. Dave at pl said that the vector one is fine for stock but with the turbo the nytro one is better. Makes me think yamaha has been building motors to be good for turboing. Or that they have been testing turbos themselves for quite some time.
Kinger, the motor work has reallu not been bad. Ii have followed the shop manual and it has been pretty easy. My degree wheel should be here before the weekend so then I can get the cams degreed and set.
The reason I went with the nytro oil pump is that is what was reccomended by powderlites. They have not steered me wrong yet so I am doing what they say. They also told me to gas port the pistons but I really didn't wanna pull the motor apart that far. I think that the nytro pump must have more pressure. Dave at pl said that the vector one is fine for stock but with the turbo the nytro one is better. Makes me think yamaha has been building motors to be good for turboing. Or that they have been testing turbos themselves for quite some time.
rxrider
Jan-Ove Pedersen
- Joined
- Apr 25, 2003
- Messages
- 7,355
- Reaction score
- 64
- Points
- 1,753
- Location
- Lakselv - 70N & 25E
- Country
- Norway
- Snowmobile
- 2014 Phazer XTX, 2013 Phazer RTX, 2008 Apex RTX, 2007 Warrior, 2006 Attak
It's a go Kinger, it's great knowing the internals of the engine and make adjustments with confidence all by yourself.
dirk_03
Expert
cam timing
After a little learning curve on the cam timing I have it set where I want it.
I had the gears slotted the wrong direction at first. This was easy to fix and I slotted them the other direction. I have the intake cam set at 111 and the exhaust at 113.5. I am happy with these settings. I am going to engrave a line from the gear to the cam hub so I can set these easily and also to check to may sure that they have not sliiped back ever with out having to set of a degree wheel and stuff. I red locktighted the bolts holding the gears to the cams and torqued them to spec. I will check the timing on them a few more times to verify that they are correct before putting the head cover back on. Also I am waiting for a oil pan gasket from yamaha. I can't believe it is taking so long to come.
Then I will be bolting them motor into its new home! And working on the final fit up of other things. The custom gas tank will come last.
After a little learning curve on the cam timing I have it set where I want it.
I had the gears slotted the wrong direction at first. This was easy to fix and I slotted them the other direction. I have the intake cam set at 111 and the exhaust at 113.5. I am happy with these settings. I am going to engrave a line from the gear to the cam hub so I can set these easily and also to check to may sure that they have not sliiped back ever with out having to set of a degree wheel and stuff. I red locktighted the bolts holding the gears to the cams and torqued them to spec. I will check the timing on them a few more times to verify that they are correct before putting the head cover back on. Also I am waiting for a oil pan gasket from yamaha. I can't believe it is taking so long to come.
Then I will be bolting them motor into its new home! And working on the final fit up of other things. The custom gas tank will come last.
dirk_03
Expert
headlights
I would love to not run the stock headlight on the rev but i need two small ones that are good to see at night? As good as the stock ones. I can have a lot of flow into the intercooler if I keep this open with smaller headlights.
I would love to not run the stock headlight on the rev but i need two small ones that are good to see at night? As good as the stock ones. I can have a lot of flow into the intercooler if I keep this open with smaller headlights.
- Joined
- Apr 17, 2003
- Messages
- 5,553
- Reaction score
- 1,441
- Points
- 2,003
- Location
- Menno, SD
- Website
- www.ulmerracing.com
- Country
- USA
- Snowmobile
- 2014 Yamaha SR Viper LTX, 2014 Yamaha SR Viper RTX SE, 2015 Yamaha SR Viper MTX SE 162 (turbo), 2015 Yamaha SR Viper MTX SE 153
- LOCATION
- Menno, SD
- WEBSITE
- www.ulmerracing.com
dirk, let me look, I'm pretty sure I have a oil pan gasket on the shelf. Do you want it and just send me yours when you get it?
dirk_03
Expert
gasket
Allen, I think that the gasket will be here this coming week. We are on vacation up on the north shore till tuesday. So unless u know something I don't about the gaskets if they are on backorder or something let me know. I ordered it last monday so it should be here soon I would think.
Allen, I think that the gasket will be here this coming week. We are on vacation up on the north shore till tuesday. So unless u know something I don't about the gaskets if they are on backorder or something let me know. I ordered it last monday so it should be here soon I would think.
dirk_03
Expert
motor
I started putting the motor back in the chassis for good this afternoon. I need to figure out something for the bottom coolant hose. Right now It is under the oil filter. I think on the yamaha it fit behind the oil filter. I may need to go over the top of the filter. That is the onlyh hold up as of now. I need to get the spacers right to make sure the motor is perfectly aligned as well. Once the motor is in I just have to put the wiring in, build a new steering post, charge tube and downpipe. Then to the last big project. The fuel tank.
I cannot wait to start this thing, and take it for a rip on the grass.
I started putting the motor back in the chassis for good this afternoon. I need to figure out something for the bottom coolant hose. Right now It is under the oil filter. I think on the yamaha it fit behind the oil filter. I may need to go over the top of the filter. That is the onlyh hold up as of now. I need to get the spacers right to make sure the motor is perfectly aligned as well. Once the motor is in I just have to put the wiring in, build a new steering post, charge tube and downpipe. Then to the last big project. The fuel tank.
I cannot wait to start this thing, and take it for a rip on the grass.
