Author Topic: 350f Won't Start  (Read 592 times)

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Offline wingman

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350f Won't Start
« on: June 21, 2009, 06:35:50 PM »
So my woes started earlier yesterday and I finally got all of the wiring problems sorted out (I think).

http://forums.sohc4.net/index.php?topic=53539.0

Thanks for everyone's help on that. 

My new problem is now the bike won't start.  It turns over like it is going to start, I hear firing out of what I believe is the cylinder 1 (I think).  Then nothing.  I pulled the plugs - plugs 1 and 4 were covered in crap and looked like they had been for some time.  2 and 3 didn't look bad.  I know that the carbs need to be sync'ed - the previous owner of the bike said that he rebuilt the carbs, but I am not so sure.  When it did run 2 days ago,  It wouldn't idle correctly, smelled of fuel and would die if I pulled it to WOT.  If I accelerated smoothly, everything was fine but I couldn't go faster than about 40 - I know the bike is slow, but I only weight 140 lbs.  I was hoping for 60 at some point :)

I verfied that all of the plugs wires are delievering to the plugs themselves (took a good plug, contected it to the wire, placed it on the motor and turned it over a couple of times.

At this point, I am thinking that there is something wroning with the carbs - I haven't touched them since I got the bike, but the gas small concerns me.  I have a sync kit and pods as well as the stock airbox (the debate on which to use can start below).  Any suggestions on anything I am missing before I pull the carb stack and start a rebuild?

Thanks in advance.

1972 CB350F - Who needs TV?  I have a motorcycle in my living room! http://forums.sohc4.net/index.php?topic=67528.0

Offline tomkimberly

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Re: 350f Won't Start
« Reply #1 on: June 21, 2009, 06:43:36 PM »
You really should do all the basics before fishing for answers.

Rebuild your carbs, never trust PO's!

Do a full tune up including setting the points, checking the condition of the capistors, install new spark plugs, and adjusting the valves.

Afterwards, report back if it does not start or run right.


Tom

Offline wingman

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Re: 350f Won't Start
« Reply #2 on: June 22, 2009, 09:58:54 AM »
My apologies - you are right, never trust the PO.  I am going to pull the carbs, rebuild and then do a full tune up.

Thanks again for everyones help
1972 CB350F - Who needs TV?  I have a motorcycle in my living room! http://forums.sohc4.net/index.php?topic=67528.0