rebuild help

[yamablaster05]

well i just finished putting together the blaster. i had it bored out mildly custom ported and advanced the timing 4 degrees. problem i have is when i start it, it will idle but the idle is very smooth and not very choppy like the stock timing and i know it isnt tuned right because it will hang in low rpms even at full throttle. but still i keep coming back to the timing issue. idk if that has something to do with it or what. havent checked the plug yet. but it does idle and run just sh*tty. idk whether it is lean or rich feels like it is boging out when i give it gas but it wont kill.

 

[Awk08]

ya mention the port work but no jetting??? also, was it broke in properly???
gotta check that plug, in fact stick a new one in and do a good plug chop,
it'll tell ya whats goin on, hangin is supposed to be a lean condition, better get it corrected soon or all that new work is gonna melt together

http://www.blasterforum.com/engine-13/spark-plug-chop-20247/

http://www.blasterforum.com/engine-...t-done-after-top-end-rebuild-4399/index2.html

 

[yamablaster05]

before all the work i had a 320 main jet in an i figured after the port work and bore i needed a larger one so i threw a 370. i thought it was to high but ill just try the 340 and check the plug. and last night was the first startup so i still gotta lot of work on it