thomas h. Posted April 23, 2011 Report Share Posted April 23, 2011 this is the instructions The quick change timing plate is pre-set at 0 degrees. To adjust simply loosen the two allen screws on either end. Adjust downward for advance ( + ) and upward for retard ( - ) . Each line equals 1 degree plus or minus. Remember to tighten the screws when finished. Your done! The average timing for a bike on race gas is 5 degrees advance you may push it a little further to 7 degrees, pump gas go to 2 degrees. If you have a stroker crank you will have to adjust it differently as the ( o ) mark will change. i do have the stroker crank sooo... what do I do, pump gas 91 4 mil 310 mains toomie t4 no air lid should I start @ +3 degrees? Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted April 23, 2011 Report Share Posted April 23, 2011 Depending on your compression,150 or less you can get away with +4,but 91 octane isnt real good so try it an listen for signs of pre-ignition or get better gas Quote Link to comment Share on other sites More sharing options...
thomas h. Posted April 23, 2011 Author Report Share Posted April 23, 2011 Depending on your compression,150 or less you can get away with +4,but 91 octane isnt real good so try it an listen for signs of pre-ignition or get better gas thanks for the reply so does pre ingition sound like it does in a car? pinging and rattleing ? Quote Link to comment Share on other sites More sharing options...
thomas h. Posted April 23, 2011 Author Report Share Posted April 23, 2011 ok did a compression got 115 and 119 so i'll try plus 4 timing and listen for detonation. Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted April 23, 2011 Report Share Posted April 23, 2011 ok did a compression got 115 and 119 so i'll try plus 4 timing and listen for detonation. 115? Sounds like you might want to be listening for a re-build. Advancing the timing on that motor is like putting high dollar spark plugs in a 200,000 mile motor and hoping it will be faster. Freshen that thing up and it will come alive! While your at it.....if you don't have money to port it, put the Vito's Super Stock pistons in it and you'll see big results for under $200. Quote Link to comment Share on other sites More sharing options...
thomas h. Posted April 23, 2011 Author Report Share Posted April 23, 2011 115? Sounds like you might want to be listening for a re-build. Advancing the timing on that motor is like putting high dollar spark plugs in a 200,000 mile motor and hoping it will be faster. Freshen that thing up and it will come alive! While your at it.....if you don't have money to port it, put the Vito's Super Stock pistons in it and you'll see big results for under $200. I though it was on the low side too. is a re-ring something that is a option? are those vitios pistons supe light weight? porting is going to happen. I have a cool head, maybe i have the wrong size domes? i wanted to put on the timing plate because I'm also doing a DC conversion so might aswell put on the timing plate. i hope there is good nickel still left inside!! thanks for the post Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted April 24, 2011 Report Share Posted April 24, 2011 stockers dont have nickasil ,they are borable depending on how much it is allready.If the cylinder is straight n true and piston to cylinder clearance is .003 a hone an rings will work.What size domes are in there?you will have to pull the whole thing apart to check clearances,I use a bore guage its the only way to check for sure but def check it now b4 something bad happens.If you need help an you dont want to go with the dude you got the motor from hit me up Quote Link to comment Share on other sites More sharing options...
thomas h. Posted April 24, 2011 Author Report Share Posted April 24, 2011 stockers dont have nickasil ,they are borable depending on how much it is allready.If the cylinder is straight n true and piston to cylinder clearance is .003 a hone an rings will work.What size domes are in there?you will have to pull the whole thing apart to check clearances,I use a bore guage its the only way to check for sure but def check it now b4 something bad happens.If you need help an you dont want to go with the dude you got the motor from hit me up with the cool head can I pull the top off and on because of o rings ? does the o rings need sealant? Quote Link to comment Share on other sites More sharing options...
sstaton1983 Posted April 24, 2011 Report Share Posted April 24, 2011 i would replace the o rings when pulling the apart,but i dont trust cool heads anyways.to many places for a leak. Quote Link to comment Share on other sites More sharing options...
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