rxrider's Turbo Garage - pics back, will continue

[rxrider]

Update - April 16. - Programming fuel and boost. MCX290 Apex Midmount.


I have a customers sled in for fuel and boost adjustment. He wants more boost and I want to Perfect the fuel map.

Installing Equipment to be able to adjust boost and fuel table in the MCX Generation 5 EFI Control Box consists of the following steps.

- Connect MCX EFI-Box to a computer.
- Connect MCX Display Unit logging unit to the MCX EFI-Box and a computer.
- Install a wideband AFR-sensor in the exhaust (on older Versions you have to weld on a bung for the sensor)


First I installed the sensor to the pre welded bung in the exhaust.

I installed the MCX Display logging unit on the handlebars for easy Access and readability.

I Connected a Mini-USB cable to the MCX EFI-Box.
The EFI Box have to be opened on the rear, remove the 4 screws and the lid on the back comes off.
Connect the Mini-USB to the Connector inside the EFI-Box.

Instructed the customer on how to operate the logging function and sent him out riding.
Got the sled back. Downloaded the logs and analyzed them. Connected the EFI-Box to the computer and opened the Fuel table. Did my adjustments based on the logging data.

Repeated a few times and the AFR Levels are pretty much spot on.

Boost Level is at 1.0 Bar or 14.7 lbs at the moment.
Runing out of time boost is going to be perfected NeXT season.

 

[le700]

Hello Rx.
Where is the best place to get a boost gauge (with pod)?
I see you used an autometer phantom gauge on the one on the previous page.
I checked out summitracing, and they had it. They also had a gauge pod, but it was not like the one you used. It looked like it was more open on the bottom of the cup...

 

[rxrider]

If it's open on the bottom it's better, easier to route the signal line and wireing.

I got them on eBay, can't remember where.
But you can get them in Norway as well.

The pods were bought on eBay, they came from Hong Kong. Cost were $16USD a pair including shipping.

 

[rxrider]

SEASON 2013-2014


Welcome to the 2013-2014 season.
I hope to install a few Viper/AC turbo kits this season.
MCXpress have developed a New turbokit that fits both the Yamaha Viper and the Arctic Cat Version of the sled.
I have seen pics and details on the Viper Turbo kit but until it's official and published on their website I cannot make any comments.

I have a sled in for a minor exhaust part repair. Will start working on the sled any day soon.
I suspect the titanium Y-pipes to be broken, if so they will be changed to stainless steel parts.

Jan-O
rxrider

 

[rxrider]

Update - October 19. - Changing exhaust parts Apex MCX290 Midmount.


I got a sled in With an exhaust leak. From the sound of the sled I guessed it to be a broken exhaust header.

Took the seat and tank off and found one of the exhaust header pipes broken.
As usual it was the exhaust header on the far right side that had cracked wide open.

Here's a pic of the broken exhaust header.

I took all exhaust header pipes off and examined them closely, the last Three were in good shape, even the donuts were like New. I had a used RX-1 exhaust header pipe laying on the shelf, installed the header pipes back into the sled.

My customer want OFT Racing steering Blocks, they are going in as soon I have them delivered.

Season is picking up. We have snow on the ground and below freeze temps.

 

[yamaha1973]

Jealous that you have snow!

 

[rxrider]

Around my house it's only 1 inch
We would need at least 1 foot to cover most gravel and small rocks on the trail before riding starts.

 

[rxrider]

Update - November 5. - Installing OFT-Racing Aluminum Steering Blocks on Apex.


Finally got the time to post on the install of the steering Blocks.
The plastic one are gone and so are most sloppiness in the steering.
What a difference over the Stock plastic Blocks.....
The minor sloppiness left are due to steering linkage and ball joints.

The new steering Blocks comes With oillite bushings.
Nevertheless; I added some light grease lube on the mating surfaces to make sure there will be no wear initially.


Here's a few pics from the install.


Lower Block on the steering column.

In front of the oil tank.

Upper Block on the steering column.

My customer are very pleased With the result

 

[rxrider]

Update - November 6. - Installing USB cable on MCX Gen5 EFI box.


The MCX Gen 5 EFI Box comes With Mini USB Interface for tuning purposes.
While the Gen5 Box has a cable Interface for Connection to the MCX Display Unit it does not come With an easily available Connection to a PC.
Unlike earlier generations of EFI Boxes; the Gen5 Box can not be accsessed thru the MCX Display Unit.
You have to Connect Your pc directly into the Gen5 EFI Box.

Connecting to the Gen5 USB Interface is a real pain. You will have to get Access to Your Gen5 Box, remove the lid on the rear of the Box, Connect the Mini USB cable to the Interface, Connect to the pc.

To remedy this situation I will install a USB cable on every MCX Gen5 Box I ever install from now on.


Here's what I did.

Made a hole in the lid aligned With the Gen5 Mini USB Interface.
Did the measurments and cut the hole where the USB Cable is going thru the lid.
Installed the lid and Attached the Mini USB cable.
Used Tech7 flexible glue to make sure the USB cable will not come loose.
You need a 3 ft or 1 meter Mini to normal USB cable.


The Gen5 EFI Box is installed in front of the steering post.
Lid removed for cutting. Testing the USB cable.


Here's a few pics.

The USB cable is routed up into the handlebars, will be hidden underneat the handlebar pad.

When you need to Access the EFI Box it's easy to get hold of the USB cable

 

[rxrider]

Update - December 3. - Servicing exhaust parts on Apex Turbo MCX310


I have a sled in for exhaust parts repair, plug change, MCX Display Unit wireing check, more or less a minor service job on a turbo sled. The owner noticed an exhaust leak, rough idle, and dubious Readings from his MCX Display Unit.
Other than that the sled had good Power, but slow Power build up. I suspected an exhaust leak at the exhaust headers somewhere.

This sled has worked well for many Seasons but at last the exhaust donuts gave way.
The left side donut is completely gone.

The two donuts in the middle are stille in one piece but worn out.
The one to the right is almost gone.

With this type of exhaust header it is impossible to check for cracks or leaks by looking at it.
My bush mechanic solution.

I cut the neck off the bottle and cut a hole in the bottom to be able to blow thru.

By blocking one end of the exhaust headers and using the bottle to blow pressure into the header I spotted a leak in one of them. One of the welds had a small hole in it.


Fixed.

Changing plugs, the sled arrived running on 3 cylinders.
I suspect a fouled plug, it's a pain but I'm changing the plugs With a New fresh set.

I'm gong to install copper donuts to replace the Stock ones.
Parts on order.

 

[kinger]

Good update Jan-Ove!!! Do you get to work on your own sleds anymore haha!

 

[rxrider]

No I don't LOL

 

[rxrider]

Update - December 17. - Installing exhaust parts on Apex Turbo MCX310


Finally got the copper exhaust donuts shipped from Canada.


I'm changing the plugs and copper exhaust donuts. The old parts and the New ones ready for install.

The old donuts are Completely shot, one was totally gone. New ones in copper.

Old and New plugs. Adjusted the gaps to 0.018" or 0.45 cm.

Did a compression test. Taped the throttle to the bars to get higher Readings.
I got pretty even result across, all is well.

My compression tester.

Installed the copper donuts on the exhaust headers.

Installed the exhaust headers.
Tip: Start With the one to the right, finish off With the one to the left.

I tapped on the Y-pipes to get them as tight agains the exhaust donuts as possible.
At the same time it will reduce stress on the headers.

With the Y-pipes snug against the headers I installed the exhaust clamps.

Installed the exhaust clamps at the end of the Y-pipes and installed the skid.


More to come.

 

[rxrider]

Update - December 18. - Installing exhaust parts on Apex Turbo MCX310 - putting the sled back together - Done


Installed the heat Shield on top of the exhaust headers.

Emptied the tank as the fuel was 6 months old. Installed the tank.

Hooked up all fuel lines, tightened up all hose clamps.

Installed secondary clutch and clutch cover.

Installed fuel Return line and coolant over flow can. Connected the Electrics.

Prepared for installation of the seat. The seat is strapped to the fuel tank in the front end of the seat.

Seat and tank done. Mounting tank cover.

Installing head light pod, hooked up Electrics.

Side panels and Hood on. Done.

Added 5 gallons of fresh 98 octane (93 octane US)
Fired up the sled and it idled perfectly, exhaust leak gone
Took the sled for a few miles testride to make sure Power and driveability was ok, no problem in that Department.
Power is back to where it should be, hit the rev limiter occationally when the sled spun out.

Owner got the sled, from the grin of his face I knew he was happy With the outcome and were eager to take her out for a spin.

rxrider

 

[rxrider]

My turbo sled need a little TLC - will start working on it any day soon.
We have good snow and the sun will be back on January 21th.
I hope to have it at 100% before my first ride of the season.
Pics of the work will come soon.