Posted April 13, 201311 yr im new to motorcycles and very new to two stroke motors. i just bought 72 CS5 200 thats not currently running. the motor tuns over and has good compression. im not gettting any spark (seems to have newer ignition coils and plugs/wires) and the guy that had the bike before me seemed to think there was a problem with carbs that needed adjustment. so far ive taken the tank off for cleaning and im going to clean the carbs and get them back on. also i need to replace the battery. then i think ill be ready to find the real problems that need solved. any advice you could give me would be much appreciated. im really looking forward to gettin on the road. can anyone tell me the oil/gas ratio for this bike?
April 13, 201311 yr Moderator Hi and welcome to the forum. Oil to gas ratio? isn't the oil pump working as that is the most effective way of controlling the mix.
April 13, 201311 yr Author ive heard the oil pump can be unreliable and the guy before me seems to have been premixing as well. i just dont want to risk seizing the motor. as for service manuals ive got the clymer manual for 90-200cc twins from 66-77 and two yamaha cs5 service manuals.(one is for sale if anyone is looking) i cant seem to find the mix spec though. i think because its normally done by the pump.
April 13, 201311 yr Moderator Make checking the pump one of the things to do when getting the bike up and running. I wouldn't premix unless I didn't have a pump. You need to make a list of what you are going to check to get the bike running. I know that Sacha pointed you to a thread on the points in the other thread you posted. It can get frustrating and that is why it needs to be done in a methodical way.
April 13, 201311 yr Author i dont know the the procedure to adjust the points. (which screws to turn) the manual i have aren't very helpful in that regard. they are good for trouble shooting but ive never touched points on a motorcycle before. any recommendations on a different manual? as far as that list goes, this is what ive got: -battery -clean the tank/ find a good mix ratio for oil and gas -clean the carbs -find out why im not gettin spark(my guess is the points) -adjust the points what do you think?
April 13, 201311 yr Moderator well in there it tells you how to check the timing, the oil pump...many things
April 13, 201311 yr Moderator Page 64 of the manual shows you what do do for the points. To get a better understanding take a look at some you tube videos on 2 stroke point adjusting. The manual should then give you the specs and the you tube video should show you what things look like in greater detail. Something like this to start
April 13, 201311 yr Moderator we have a member Flyday58 who has one of these, check out his posts...there are some serious pitfalls when it comes to removing some of the ignition components
April 13, 201311 yr Author well in there it tells you how to check the timing, the oil pump...many things so yeah i saw that but it doesn't actually tell/show how to move the points. do i have to adjust the timing in order to adjust the gap in the points?
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