Top End Rebuild
#1
#3
#5
The direction below are good ones and will help your rebuild last longer. But I think you missed one thing........
Since you already bored and milled, why not port! Open them ports up for some improved power! The first time I did my scram, I couldn't believe how much this cylinder was de-tuned. Knife the IN & Smooth th EX and you want believe the power you gain from removing so little.
Good luck.
Since you already bored and milled, why not port! Open them ports up for some improved power! The first time I did my scram, I couldn't believe how much this cylinder was de-tuned. Knife the IN & Smooth th EX and you want believe the power you gain from removing so little.
Good luck.
#6
#7
Really don't need one, paper says don't coat the jug walls with 2-stroke oil (but I do - lightly). Make sure your rings are in the groves and lined up with the set pins on the piston in the groves. After install (remember to check everything twice), added oil to your gas(full tank) at a 40:1 mix if your still using your injector system. 20:1 to 32:1 if not. Spend the extra $ and get good premix oil! Golden Spectro! Now for the break in. Start and let warm up good, 5 to 10 min. Then run it around no more then 1/2 throttle and vary the speed. Do this for 15 or so min. Then shut it off and let it cool completely down. .5 to 1 hour will be good. Then do the same thing 2 more times. After these steps are complete, recheck your head and base bolts. That's it, your ready to tare it up! Remember: break in is vary important! Don't over rev it the first cycle, after that is not the important with a wisco in a polaris. Good Luck
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#10
Undo the hose clip on the hose that runs the water from the cylinder to somewhere below, and drain the water first. This is the lowest place to drain the water from.
The bottom bolts of the 400 need a torque wrench with a crows foot fitting as a standard wrench will not fit.
Also have your metric sockets and ring spanners ready!
The bottom bolts of the 400 need a torque wrench with a crows foot fitting as a standard wrench will not fit.
Also have your metric sockets and ring spanners ready!