Re: Tune up - Carb boot advise

Posted by CR125Honda on Jun 15, 2012; 1:56pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Tune-up-Carb-boot-advise-tp4022321p4023001.html

Update ---

Got the carb boot issue corrected. After removing everything. I found the intake boots to be good. They were hard but still pliable with a squeeze, no cracks, etc. Weird thing was, when I held the boots in hand and mounted one of the original 1974 clamps, I could pinch the clamp by hand and make the ends meet.. All those clamps "looked" fine (tangs not bent over from over tightening, etc.). Did they stretch with age or? The boots were not grooved where the clamps mount. Still has me a bit puzzled. Anyway, ordered a set of the superseded type. They tightened the boots with room to spare.
Carbs are now cleaned, mounted, ready to go..

 

While changing the plugs, decided to check the resistance of the plug lead resistor caps. Two came in spec (4.9 K ohms), one read somewhere in the 27 M ohm range and the last one was open.
So of course now I had to check the coils. Primary check, good. Secondary, not so much. With my trusty Fluke 77 connected, I'd watch the reading change from open to a constantly varying reading on all the plug leads. I can assume I had a weak spark at best. Really don't know how it was running as well as it did. Debated changing to a Dyna set up but it's just not in me to change my 37 year old friend from stock.

Searching now for a new coil set (30500-300-013). Spendy little guys. Retail around $225. Found them on Ron Ayers for $160. Will probably go with them.

Ken