Yamaha SR500 & SR400 Forum

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 Post subject: Hard to Start SR500
PostPosted: Sat Oct 15, 2011 9:43 am 
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Joined: Sat Oct 15, 2011 4:37 am
Posts: 23
Location: Fareham, Hampshire, UK
Hi....... Hope somebody may be able to offer some advice, I've recently bought my 79 SR500, but find that it's VERY difficult to start, I've checked the spark and all seems fine, but no amount of kicking seems to get the plug wet (used to kicking my old Triumph thankfully), if I squeeze some engine 'easy start' through the air filter (which I don't like doing) the engine starts up and runs perfectly through the gears and tickover. I've got fitted a VM34, which I've stripped and checked, all appears to be fine.

Any help and advice would be more than greatfully received. :)

Safe riding


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 Post subject: Re: Hard to Start SR500
PostPosted: Sat Oct 15, 2011 7:06 pm 
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Joined: Sat Jul 09, 2011 4:55 pm
Posts: 66
Location: michigan, usa
Check your compression, If it's low thats the way it will act . Due a search for {compression} for all the info data. Jay


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 Post subject: Re: Hard to Start SR500
PostPosted: Sun Oct 16, 2011 2:22 am 
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Joined: Sat Oct 15, 2011 4:37 am
Posts: 23
Location: Fareham, Hampshire, UK
Thanks for the help, although I don't think it's compression, as when I try to kick it over I have real problems unless it's dead on tdc. but I'll see if I can source a tester from somewhere and check it ... Thanks

Safe riding


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 Post subject: Re: Hard to Start SR500
PostPosted: Sun Oct 16, 2011 10:52 am 
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Joined: Sat Oct 15, 2011 4:37 am
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Location: Fareham, Hampshire, UK
Hi ... I've managed to get hold of a compression tester, but would like to know what sort of reading I should expect

Can anybody advise me what the compression reading should be ?

Safe riding


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 Post subject: Re: Hard to Start SR500
PostPosted: Sun Oct 16, 2011 2:19 pm 
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Joined: Sat Dec 20, 2008 9:01 am
Posts: 712
Location: Leicester,U.K
Chucky,good to see another Brit onboard! Its all about tecnique,try the following...from stone cold pull the choke lever on and give it 2-3 kicks max BUT do not touch the throttle,if no joy put the choke in and repeat but still do not touch the throttle.To many new owners give it a kick and simeoultaneosly give the throttle a tweek,this is a big no no with this engine,trust me it will catch.Same applies for hot starting but without the choke.Once perfected never forgotten! doubt very much if its compression problems from your comments.

Regards,Andy


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 Post subject: Re: Hard to Start SR500
PostPosted: Mon Oct 17, 2011 12:49 pm 
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Joined: Sat Oct 15, 2011 4:37 am
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Location: Fareham, Hampshire, UK
Hi Andy .... Thanks for the words of encouragement, I'm away for a couple of weeks now, but still contactable via email, but will give your method a try when I get home, will let you all know ...... Thanks

Anybody have a centre / main stand I can buy ?


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 Post subject: Re: Hard to Start SR500
PostPosted: Mon Oct 17, 2011 2:42 pm 
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Joined: Wed Oct 20, 2010 3:02 pm
Posts: 72
Location: Guildford, Surrey, UK
Chucky,
Your original request for centre stand is in the Wanted/For Sale section. I do have one, but to save me re-writing my response, have a look there for details.

Cheers

Steve


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 Post subject: Re: Hard to Start SR500
PostPosted: Tue Oct 18, 2011 5:44 am 
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Joined: Sat Oct 15, 2011 4:37 am
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Location: Fareham, Hampshire, UK
Hi ....... Anubody have any ideas as to why the plug isn't getting wet even after 50 kicks, but if I squeeze some engine 'easy start' through the air filter (which I don't like doing) the engine starts up and runs perfectly through the gears and tickover. I've got fitted a VM34, which I've stripped and checked, all appears to be fine.

Any help and advice would be more than greatfully received.

Safe riding


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 Post subject: Re: Hard to Start SR500
PostPosted: Wed Oct 19, 2011 12:08 am 
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Joined: Thu Apr 30, 2009 11:18 pm
Posts: 10
Location: Queanbeyan City N.S.W. Australia
Chucky wrote:
Hi ....... Anubody have any ideas as to why the plug isn't getting wet even after 50 kicks, but if I squeeze some engine 'easy start' through the air filter (which I don't like doing) the engine starts up and runs perfectly through the gears and tickover. I've got fitted a VM34, which I've stripped and checked, all appears to be fine.

Any help and advice would be more than greatfully received.

Safe riding

Do you have a vacuum operated fuel tap?? Try it in the "prime" position when starting.

Cheers.


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 Post subject: Re: Hard to Start SR500
PostPosted: Wed Oct 19, 2011 2:15 am 
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Joined: Sat Oct 15, 2011 4:37 am
Posts: 23
Location: Fareham, Hampshire, UK
Hi ..... Thanks for the response, I have a Harley fuel tap fitted which is direct supply, which I have checked and all appears to be okay...... Thanks for the thought tho


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