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ducati998
03-25-2008, 01:39 PM
GOOD DAY ALL

I have aquired a 1981 honda atc 185 and i need to know the steps in setting the valves. I know the clearance is .002 on both intake and exhaust. Another question i have is the compression ratio for this trike is, any help would be muchly appreciated.
SWIGIN
03-25-2008, 01:53 PM
all you need to do is find TDC ( cam lobes will be pointing down) and set to the gap you want.....simple

no idea on the compression but ill take a stab and say 8.5:1
3Wheelers4Life
03-25-2008, 03:19 PM
ok, compression should be 8.0:1 if your using a stock type piston. or if your using a stock 200x piston its 9.6:1. you could be running a wiseco 10.25:1 also.
ducati998
03-26-2008, 12:47 PM
Thank you Thank you very much for the help---i was told the wrong way to set the valves no i know how to set them know.
ducati998
03-26-2008, 10:34 PM
my 185 seems to have no fire. I have tried 2 new plugs and nothing, i have changed out the ignition coil and still nothing, Today i checked the timimg and seems to be all correct and wires are not cut or crimped and connected. I pull the thing over until the cows come home and nothing and im stumped. Any help would be muchly appreciated.
MTS
03-27-2008, 11:46 PM
my 185 seems to have no fire. I have tried 2 new plugs and nothing, i have changed out the ignition coil and still nothing, Today i checked the timimg and seems to be all correct and wires are not cut or crimped and connected. I pull the thing over until the cows come home and nothing and im stumped. Any help would be muchly appreciated.

You need to test your stator, its a bit of a common problem with them,
wpginterceptor
07-21-2009, 05:12 PM
Follow the steps, SPARK, FUEL, COMBUSTION!

unscrew the plug but keep the cable hooked to it.. have someone hold the ground of the plug close to the block and then pull the cord and see if shes sparking..

If spark is good then move to step 2 to see if shes getting fuel
AutoXer
07-21-2009, 05:50 PM
The exciter coil (behind the fly wheel) will cause these not to run. Pull the plug and you will have spark (should be a nice bright blue) put it back in and you could loose it . If the exciter coil hasn't been replaced ....... it seems like a good idea to replace it
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