i have decided to put new coils ,on my bike its a 1992 xv535 2yl what are the best ones to buy aftermarket ones

 I  buy all component from RexSPEED SHOP , COZ I KNOW THEY WILL LAST ,. most on ebay are   cheap  imports,

thanks for reply the rexspeed shop I could not finf my model listed ,so I bought a pair of coils from a dealer called yambits  do you think they will be ok the ohms seem different ,thedealer says they are a quality replacement

Tell them there is a difference,,  logged , so if  bother  a replacement will be due,  I bought some parts of Yambits,  the pictures showed  shiney replica parts [ bolts etc,    ]  an received  black bolts,   other parts looked cheap too, .  [ Chinese ] 

Dont compare the readings between the new and the old. Resistances for the new should be:

Primary: 3.8 to 4.6 ohms @20 degrees C

Secondary: 12,000 to 14,500 ohms @ 20 degrees C

Take the plug cap off for checking the secondary

thanks neversay I'm not to adept at using a multimeter but the old coils that's if I done it right showed a reading of 4.1 ohms whereas the new ones were 2.1ohms what do I set the multimeter at for secondary

Secondary readings are in the thousands, so youll have to switch your meter to read in that range. Normally, the ohms (resistnace) range scales up in factors of ten, so hopefully your meter will have a dial that looks like this

resistance range is the one with the horsehoe. Primary is measured with the dial set at 200. Secondary (12k to 14.5k), move your setting to 20k (k = 1,000)

Your meter may differ and may read 100/1k/10k/100k etc. In that case, you would set at 100k as 10k would be too low.

Unless youve got a really good meter with just one range

Always zero your meter first, or check by holding the probes together and ensure it reads zero

By the way, id be concerned that the new ones only read 2.1

Hope this helps