Our SNOCRUISE  YAMAHA
600 TRIPLE SX DX

SNOCRUISE
FAMILY TOURS

 SNOCRUISE
CURLING PACKAGES

SNOCRUISE
WINTER WEEKEND
POKER DERBY

CALENDAR


MAPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SNOCRUISE
FAMILY TOURS

 SNOCRUISE
CURLING PACKAGES

SNOCRUISE
WINTER WEEKEND
POKER DERBY

CALENDAR


MAPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017 YAMAHA 600 Triple SX DX PROJECT SLED

  • ASSEMBLE AN OTHERWISE VERY LOW KM CHASSIS INTO A DESCENT RUNNING SLED.

  • ASSEMBLE THE SLED WITH REPLACEMENT COMPONENTS.

  • END UP WITH A WELL EQUIPPED SLED THAT HAS  EXTREMELY RESPONSIVE HANDLING .

This 600 triple is estimated to have 100 HP. The O.E.M. track is a 121 x 15 with an advertised .92" lug. We change the track out for a 1.25" upgrade. This sled's reasonably short track and all temperature responsive 100 HP mill make it a great trail breaker thru the tight NISBET FOREST trails. But that is only half of the story...rarely is economy discussed, expect bragging rights at every fuel stop!
Economy...we rarely discuss fuel mileage at SNOCRUISE in the Saskatchewan prairies because we ride such large variety of cross-country snow conditions. We are more concerned with the relative location of Small towns with fuel service in our riding area. But under archives we tabulate fuel usage for fun at most stops. Look for an "F" added to the rides "Link" on our "Archives page. Fuel mileage is usually best gauged on consistent "groomed trail riding" conditions.

 1. THE ENGINE was CATASTROPHICALLY BLOWN UP!!
 2.
UPGRADE the TRACK
 3. SURPRISE DAMAGE that we hadn't COUNTED ON!
 

 

1. THE ENGINE was
         CATASTROPHICALLY BLOWN UP!!
When the snowmobile was acquired for parts. It did not turn over. She was locked up solid. The sled only had 1600 original KM's on it when I bought it, I put it away until I found the parts required to give it a new lease on life. The sled was evidently stored inside out of the moisture or there would of been nothing salvageable.
It would appear that;


a) She was driven very little,
b) Had not received the constant seasonal service necessary to keep a small engine powered toy alive!
c) Was driven with completely plugged carbs resulting in a burnt piston.
d) At this point it would appear that the operator thought it would make more sense to drive the sled....try to drive the sled....home?? rather than tow it in and load it up!!

The #2 middle cylinder was destroyed.


#2 piston was completely separated mechanically from the connecting rod.


This is the spare bottom end obtained when we bought an SX Venom 600 our of Lac la Ronge.


An otherwise very low KM crankshaft that needs a rod kit.


The debris and chunks of piston skirt that floated around twisted the connecting rod and locked her solid.


Magnifying the piston top the exhaust side arrow is located.

 


She ran lean for an extended period of time, long enough to not only melt the piston off but it appears to have been a running aluminum river!

WOW this is pretty messy.


This about as drastic as it gets.


The piston was sticking in the cylinder and was kept running...


...until it tore the wrist pin right out of the piston.


The #2 connecting rod had knocked a hole in the cases.


Then the accompanying hole in the bottom of the cases became a blow torch of fuel and oil combusting from the cylinder past the absent piston thru the hole in the cases...


...into the belly pan melting all the wiring and oil lines passing under the engine.


Well the outside sparkplugs were running pretty good!


The outside pistons were perfect low KM ones that we would be reusing, the stain is from being locked in the same position for years and years.


With the bottom end, salvaged off of a 2004
 
"Venom" obtained for parts, and center or #2 piston and cylinder replaced with a she is going back together

 

 

 

 

2. UPGRADE the TRACK
Part of the puzzle is upgrading the track for our Nisbet cross country riding. A lot of opinions is out there but we want a maximum traction in loose snow and yet something that can be driven on a groomed trail from time to time....maybe never...but if it happens! You don't want to overheat the track and sliders or the suspension and track will look pretty similar to the engine in this sled as we bought it. Also the more snow moving and being carried by the track the slower the sled will be. This is just plain physics, we have found that a 121 x 15 x 1.5 is great on our 115HP 700's and that a 121 x 15 x 1.25 is great on our 100HP 600's.

A few years earlier I had bought this real nice condition track off of an 45th anniversary  year 2000 600XCSP that was being parted because ignition components were no longer available and she was torn down.

 A) TRACK UPGRADE  


The OEM track is in very good condition and probably ideal for groomed trails...if that is all she is going to see!!


This is the Camoplast/Polaris #5411487 that I had tucked away specifically for this project.

c) SHOCK INSPECTION


The main rear skid frame shock is dry and free of corrosion.


This is the middle, or front skid frame shock all good.

 

 

 

b) CHAIN CASE SURPRISE


This lower sprocket spacer has been found in backwards!


It will be fine but show lots of wear marks from contact with...


,,,the snap clip retaining the lower RT hand side drive bearing...


...had the spacer or bushing been in the right way the shoulder would of held it off the large snap ring. On the preceding photo look at the rust on the end of the lower drive shaft...the bolt and washer was out!!


I pull seals and packed with grease.


The seals pressed in.

 

 

 

 

 

 

 

 

d) REAR SUSPENSION INSTALL


The suspension has been weaseled down into the track, where it is time to line up the threaded
suspension mounts, holes in the chassis and bolts.


This is one of the most important places to use Locktite. Note the duck seal on the socket.


The bolt has to stay in the socket while you insert the 1 foot extension in thru the body plug opening.


Once the couple front side bolts are in you can install the rear bolts with a few extra little tricks.


Getting these last rear suspension bolts lined up like this nice.


I pulled the LT side lower and upper drive bearing seals...


...and pack them.


This 1 1/4" track looks right at home here.

 

  3. SURPRISE DAMAGE that we
hadn't COUNTED ON!

a) HEAT EXCHANGER DIAGNOSIS SURPRISE


This is the unusual "spot" I noticed on the rear heat exchanger, then inside this "grey" spot a...


...little green spot, hmmm WT...is this. It is an antifreeze leak "seeping" thru a epoxy patch.


Removing the heat exchanger we find a patch on both sides matching an extra hole in the rear valance. I think a long time ago the owner should of let the dealer ship mount the license plate for him.


The heat exchanger that I salvaged off of a parts sled.

b) HEAT EXCHANGER INSTALL


The rear valance gets some needed straightening.


Squared up it bolts to the sides.


Someone a long time ago had reinstalled the heat exchanger with only 3 small aluminum rivets. This is a chassis integrity installation and it actually calls for 6 steel rivets done properly.


Gonna add some coolant, I had the rear of the machine elevated so the coolant loss was minimal.


With the back of the machine down, pull the rear bleeder screw before installing the seat.


Yup a little bit of antifreeze hits the floor.


Pull the bleeder screw on the top of the engine.


You do the math, didn't loose much antifreeze during the
inaugural full day of riding or the heat exchanger replacement. Point is by looking the sleds over carefully you can catch it.

c) SANITARY!


The birds spent many years perched overhead...


The dash air intake foam was deteriorated and turned into nylon dust!


Some sort of rat or mammal likely lived under the remains of the engine for eons...


...man it was a lot of digging and washing to get back to a sanitary build.

d) OTHER TIDBITS


I installed plastic skis and dually carbides that were left over from our
 700 Blue Max .


I disassembled and liberally greased all the suspensions swivel points.


A hitch had been welded on the rear bumper...


...I had the hitch welded across the bottom as well and tiewrapped out of the way looks good with some paint. Tie wrapped out of the way the hitches are quieter when not in use.

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