I have been trying to start my bike for 2 weeks now, At first it was cranking and just didnt want to turn over, i checked all vac, fuel , power, spark , ect. And nothing sprayed cleaner in carbs and nothing, Stuffed the carbs and nothin, now i turned the ideal screw and alot of gas came out and then stoped, kinda looked like it had stuff in it to. Well then now it wont even turn over like the start button works sometime and then it dont work, Any one with some ideas plz help me. I was also thiking about the black box and how to test it. all me gauges work lights and everything. Help me plz. thanks

 

Maybe try checking compression?

 

I did its got that cuz when i checked the timing i turned her over by hand and can hear the Wush comin on the down stroke , When the start button is working i can smell gas and hear a slight thug or ummfff comin from the engine, and it sounds like it wasnt to start , i think i should check the spark one more time. IDK thanks for the suggest tho kwong2001 , any one else got some ideas.

 

Check it with a compression gauge, you can rent one at probably any automotive store for free. Might be good to make sure the valves are within spec first, that would probalby throw off the reading.

 

Ok and what if thats good whats next? Anyone!