gt 550 timing

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Mozzmaurice
Posts: 3
Joined: Mon Aug 06, 2018 6:25 pm

gt 550 timing

Post by Mozzmaurice »

Hi gents
Just introducing myself so take it easy with me lol
Sadly an old friend has got real poorly, and knowing I tinker with bikes has asked if I can bring his gt550 back to life( it was stolen around 20 yr ago, not ran since)
Making good progress, I think ?
Unfortunately I cannot seem to time it correctly
Trouble is I turn eng to 3-37 btdc revolve the timing plate as the "l", points are fixed but run out of slot space ?,
I even thought of filing slots lol to revolve it more lol
Scratching my head lads as it's around 6mm btdc
Could it have had wrong points??? With wrong angle ??
Regards
Mozz
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mizzytheman
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Joined: Tue Dec 28, 2010 1:17 pm
Location: Knowsley, Liverpool

Re: gt 550 timing

Post by mizzytheman »

Hi Mozz,

Welcome to the forum. I’m sure one of our 550 gurus will be along shortly to answer your questions.

Regards

Martin
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BAZ
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Location: Dudley west midlands
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Re: gt 550 timing

Post by BAZ »

Don't be afraid to adjust the points gap slightly out of spec this will make a big difference..welcome Dude.
barney01
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Joined: Wed Sep 26, 2012 7:33 pm
Location: Prestatyn.Wales

Re: gt 550 timing

Post by barney01 »

Hi Mozz and welcome to the forum. No worries we will help you out :D
Can you tell us a bit about the bike? What year or model is it? Have you had it running at all? Finally whereabouts are you located someone may be nearby to help.
NO SMOKE .......NO POKE
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malky
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Location: swansea south wales

Re: gt 550 timing

Post by malky »

This seems to happen with most Suzukis - plenty of slot but in the wrong place I had to set the points gap at about 20thou on one to get the firing point anywhere near where it should be
Mal.
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Alan H
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Location: Wombwell, Republic of South Yorkshire

Re: gt 550 timing

Post by Alan H »

I'm having nowt to do wi' this as next thing he'll be at my house wanting to come and talk about his other bikes and they're all Yamahahas.
Bloody hell, he's here already............... :lol:


Nice to meet up Mozz, don't listen to the others, they're all strange, not normal Yorkshire folk like wot thee 'n' me is. 8-)
Proof that four strokes are over complicated
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PaulD738
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Location: Warrington Cheshire

Re: gt 550 timing

Post by PaulD738 »

Alan H wrote:

Nice to meet up Mozz, don't listen to the others, they're all strange, not normal Yorkshire folk like wot thee 'n' me is. 8-)
Normal? yeah right, like you are anything close to normal :lol:
They're rubbish them Jap bikes lad they won't last five minutes! you want to get yourself a nice Royal Enfield!
A quote from my old dad 8-)

I started out with nothing and I’ve got most of it left!
Mozzmaurice
Posts: 3
Joined: Mon Aug 06, 2018 6:25 pm

Re: gt 550 timing

Post by Mozzmaurice »

Many thanks gents for the warm welcome
It's a 75 bike we think density system
Was trying to time it up using a firstly dial gauge then a vernier
Prob being on l cyl, the piston was 3 mm lower than R and C when the markers were lined
Whipped the head off to eliminate improper use of guages, and clearly visible piston on l cyl was 3 mm lower
So .....
When I tried to set the fixed l cyl timing I had run out of space on the slotted backplate hence points opening at around 6.5 mm btdc
As opposed to c and r cyl opening on the marker at around 3.3 mm btdc
Met up with Alan , smashing fella great hospitality, and yes I'm a bit of a yam 2 stroke freak- I have 7 pre 72 bikes lol
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mizzytheman
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Joined: Tue Dec 28, 2010 1:17 pm
Location: Knowsley, Liverpool

Re: gt 550 timing

Post by mizzytheman »

Must have been taking his medication to be in a good mood :lol:
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Alan H
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Joined: Fri Aug 05, 2011 6:38 am
Location: Wombwell, Republic of South Yorkshire

Re: gt 550 timing

Post by Alan H »

mizzytheman wrote:Must have been taking his medication to be in a good mood :lol:
Yup.
whiscubAug.jpg
Looking at those corks and labels, if I had always been teetotal, I'd have a Rolls Royce and a MV now......
Proof that four strokes are over complicated
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