Recent Posts

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General Technical / Re: Starting Trouble When Hot
« Last post by Bucko on September 23, 2020, 02:54:06 pm »
 :) :)
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General Technical / Re: Starting Trouble When Hot
« Last post by Jack Straw on September 22, 2020, 06:57:51 pm »
Victory is mine.   Two new coils did the job. 8)
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General Technical / Re: Starting Trouble When Hot
« Last post by Jack Straw on September 22, 2020, 12:38:03 pm »
When I install the three handed plungers I'll post results.

My other bike is an '08 KLR which uses a Keihin carb with a similar choke set-up.   Changing to the button plunger is a fairly common mod on these bikes.

in the meantime it's back to the hot start troubleshooting.   Pray for me.
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General Technical / Re: Starting Trouble When Hot
« Last post by Bucko on September 22, 2020, 01:26:58 am »
Although replacement" Choke plungers" are no longer available from Honda, there are "stand-alone" aftermarket ones (two required - one for each carb) that screw right in.  Not sure how to operate them since you'd need 3 hands but it's a possible option if the OEM ones are buggered. I recently bought a set just to see if they would fit and they do but I haven't actually installed them as there's nothing wrong with my OEM setup at this point.
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General Technical / Re: Starting Trouble When Hot
« Last post by Jack Straw on September 21, 2020, 06:00:02 pm »
Yep, my problem exactly, It failed to start after a gas station stop.   I checked the primary and secondary resistance on the coils both cold and hot they read 2.5 ohms each, hot and cold primary and about 35K secondary.   These figures are within tolerance according to the Clymer manual.   

In the meantime I received a new pair of coils from Rick's Motorsport Electric and they check out the same primary ohms as the stockers.  I've not installed them yet as that will kill my return privilege.

I'm suspicious of the choke plungers perhaps not closing fully and causing over richness when hot.   That mickey mouse one into two cable doesn't inspire confidence.

Oh, I checked the valve cleances and they're spot on.   

I know there's a solution but I want to fix it myself.  Taking it to the local shop is admitting defeat, silly, but that's the way I see it.
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The Thumper Years: Modified To Full Customs / Re: FT500 Vintage racer
« Last post by FT500R on September 21, 2020, 07:09:28 am »
110/70/17 front
140/70/17 rear
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The Thumper Years: Modified To Full Customs / Re: FT500 Vintage racer
« Last post by hellblom on September 21, 2020, 03:05:58 am »
What size tires do you have on this mr FT500?
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General Technical / Re: Starting Trouble When Hot
« Last post by Bucko on September 17, 2020, 02:14:08 pm »
A 'Hot, no-start condition' is very common with these bikes.  Typical symptom: go out for a ride, stop for gas, after which the bike won't re-start until the motor cools down.  Popular opinion is the problem is faulty coils which don't show a problem until they're hot.
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General Technical / Re: Starting Trouble When Hot
« Last post by Jack Straw on September 17, 2020, 12:01:53 pm »
Thanks for the suggestion on checking the tappet clearance. :D
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Tech Section / Re: Choke Plunger Alternative ??
« Last post by Jack Straw on September 17, 2020, 11:57:26 am »
These plungers are a great solution to old, worn, units, and sticky cables.  I'm ordering a couple.
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