when i pulled the head off 2 do a rebuild i wasent sure if i had 2 put oil in the bottom end or not
when pulling the head off
- Thread starter NameLess
- Start date
How much of a re build are you doing.
If you are only pulling the head and replacing you need not add any oil.
If you are only pulling the head and replacing you need not add any oil.
There should be enough oil in the crankcase that the crank will pick some up when rotating.
3-4mm in the bottom of the case should be enough.
If you are not splitting the cases and do not invert the motor, there should be enough oil in there, but make sure there is!
3-4mm in the bottom of the case should be enough.
If you are not splitting the cases and do not invert the motor, there should be enough oil in there, but make sure there is!
Ya mean redesigned and/or milled.
Honing is putting cross hatch marks on a cylinder.
Welcome! Pa where ya located?
im not sure what a bore hone is im new at 2strokes and geting stuffed honed and stuff and im from portage
Your cylinder needs to be taken to a machine shop or similar to be honed before you fit the new piston and rings.
If it is not honed, which in simple terms is roughing up the cylinder wall, the piston will not seal correctly and compression will be lowered.
When you do get it assembled you should a proper break in procedure, more about that later.
If it is not honed, which in simple terms is roughing up the cylinder wall, the piston will not seal correctly and compression will be lowered.
When you do get it assembled you should a proper break in procedure, more about that later.
Great you are on the right track. Get back to us when you are ready to start it for info on how to break it in and the tests you should make prior to starting.
A good move is to browse the forum and search for "leak down test" as you should do one prior to starting!
A good move is to browse the forum and search for "leak down test" as you should do one prior to starting!
Don't be scared to put a fair amount of 2 stroke oil on the piston and rings when you assemble them. Make sure that the gaskets are not those green or blue paper things, get OEM or Cometic gaskets. Use a new head gasket and tension them down correctly.
There is a free downloadable manual on the forum somewhere.
http://www.blasterforum.com/general-support-17/downloadable-yamaha-blaster-manual-17325/
There is a free downloadable manual on the forum somewhere.
http://www.blasterforum.com/general-support-17/downloadable-yamaha-blaster-manual-17325/
Last edited:
Blaner
Your Friendly South African Ambassador
Have a look at this video to get a better idea of how two strokes work, aptly, the video is narrated by an Australian, so Blaaster, this one is for you 
HowStuffWorks Videos "Two Stroke Cycle Engine"
Here is another useful site:
Animated Engines, Two Stroke
HowStuffWorks Videos "Two Stroke Cycle Engine"
Here is another useful site:
Animated Engines, Two Stroke
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