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Hot starting

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StueyC
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Hot starting

#1

Post by StueyC » Mon Jan 17, 2011 2:30 am

I have started giving the 60FL a shakedown after being rebuilt. Engine ran fine initially but started running a bit rough and wouldn't start when hot. It appears to be running a bit rich on both cylinders so I have changed plugs. Compression test gave good readings and I rejetted the carb to what it should be. All ignition components are new.

I checked timing and found it had moved a fair bit and was retarded (electronic with manual advance). I put the timing right but haven't run it again yet until I do a manifold pressure test. Is there anything else I should check while I'm at it?

This might sound like a stupid question but is there any chance of blowing the valve seal off the guides when presurising the manifold up to 10-15PSI to do the manifold check?

StueyC



FlatHeadSix
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Re: Hot starting

#2

Post by FlatHeadSix » Mon Jan 17, 2011 2:41 am

Stuey,
seals on the valve guides?, do your pressure test with both the intakes closed and it should not be a problem. it probably would not be a problem anyway if whatever kind of seal you have on there was put on correctly (Chevy?)

what kind of carb are you running. If its a Linkert they start better hot if you use a bunch of throttle, open 'er up, see if that helps.

mike

beets
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Re: Hot starting

#3

Post by beets » Mon Jan 17, 2011 4:58 am

My Linkert starts better hot with NO throttle.

StueyC
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Re: Hot starting

#4

Post by StueyC » Mon Jan 17, 2011 8:28 am

Thanks for the advise Mike. I'm running an S & S Shorty. It was starting no problems i.e. first kick cold and a few kicks hot and then just decided to not start hot after a short ride. If I leave it a few hours it will start no problems. Can a low battery cause thie problem i.e the battery has just enough charge to get her running but drains it enough to not have enough in it to start it a second time? The battery was new but sat around for 6 months while I was working on the bike. It probably hasn't been on the road enough to recharge properly.

StueyC

Panshovevo
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Re: Hot starting

#5

Post by Panshovevo » Mon Jan 17, 2011 3:17 pm

Stuey, check your battery voltage first, both before and after riding. See if the generator is charging. You might try checking the coil resistance, primary and secondary, cold, then hot.
Regards,
John

StueyC
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Re: Hot starting

#6

Post by StueyC » Mon Jan 17, 2011 10:49 pm

Thanks John. I had the battery on charge yesterday and it's holding 13.2 volts now. I'll see what it;'s showing after the next ride as you suggest. Just gotta do the pressure test first.

StueyC

john HD
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Re: Hot starting

#7

Post by john HD » Tue Jan 18, 2011 1:06 am

stuey,

i have found with both my linkert equipped bikes if they are too rich on the idle circuit they are hard to start hot.

john

Panacea
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Re: Hot starting

#8

Post by Panacea » Tue Jan 18, 2011 1:49 am

john HD wrote:stuey,

i have found with both my linkert equipped bikes if they are too rich on the idle circuit they are hard to start hot.

john
Same goes for the CV carb...Mike

StueyC
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Re: Hot starting

#9

Post by StueyC » Tue Jan 18, 2011 9:01 am

Any suggestions on jetting. Currently have it set at 0.0295" intermediate and 0.068" main. Engine is pretty much standard mechanicaly apart from a B grind cam.

Thanks.
StueyC

Bosheff
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Re: Hot starting

#10

Post by Bosheff » Tue Jan 18, 2011 3:05 pm

Replacing the condensor is easy, cheap and quick....bosheff

JR JOHNSON
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Re: Hot starting

#11

Post by JR JOHNSON » Tue Jan 18, 2011 3:51 pm

and yes condensers can go half bad,been there done that.......with respect.JR.OOPS,I SEE YOU HAVE ELECTRONIC IGNITION,what kind?

ozwick86
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Re: Hot starting

#12

Post by ozwick86 » Tue Jan 18, 2011 4:32 pm

StueyC,

You said that you put the timing right due to being retarded. Do you pressure test then run it to see if by advancing the timing cured your problem before chasing other things.

panbagger
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Re: Hot starting

#13

Post by panbagger » Wed Jan 19, 2011 12:53 am

StueyC I have a super E on my pan and those are the same jets I run in my carb, and I have never had a problem with it being to fat. I run an A grind cam in mine. Just my 2 cents. Scott

StueyC
Posts: 201
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Bikes: 60 FL Pan, 2011 Wide Glide, 49 BSA, 40 Ariel, 47 Excelsior (British)
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Re: Hot starting

#14

Post by StueyC » Wed Jan 19, 2011 2:38 am

Thanks Scott.

JR, I have a Vulcan Engineering ingnition fitted (hall effect and auto advance) with Crane coils.

StueyC

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