Author Topic: My new SRX  (Read 1645 times)

daisy

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My new SRX
« on: October 23, 2007, 12:17:38 AM »
Hello
Just got my first SRX6 , after a long wait.Its a uk spec 86 bike which has only done 21,000 miles(have all mot to 91 so looks right) although its had 13 owners from the north east to south wales. Bought of ebay as it was local and the right money. It was being a bit neglected but just got it at the right time to keep it tidy. My main concern is its starting , always had british bikes so not bothered with kickstarts but it seems very tempremental if I dont get it right first time is there something Im doing obviously wrong or should I perservere. It came with a battery eliminator fitted could this be part of the problem. Also when I can get it to go there is a bit of top end rattle  , is this common (it does go when warm) it does not burn any oil so Im hoping it doesnt need a rebore, but perhaps it does on this mileage? I need a new seat and was going to have it recovered but have seen a srx400 seat in good nick will these fit.
Any help much appreciated as when it does go its a lovely bike.
Thanks
Simon.

Steve H

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Re: My new SRX
« Reply #1 on: October 23, 2007, 06:55:42 AM »
The ignition circuit is a different circuit to the battery charging circuit, so in theory the battery eliminator wont make any diffrence to starting.
Starting will come with practice, Ive never found sure fire way of starting my SRX , but in general from cold
- full choke
- find top dead centre
- a long positive (not fast, just positive) kick, for the full stroke, jabbing at the starter wont help.
- Towards the bottom of the stroke a small 'twitch' of the throttle can often help.
- If it doesnt start after three or four kicks, then I kick it over with a half open throttle.

If its been standing for more than a couple of weeks I find draining the carbs makes it much easier to start.

The noise you describe when cold, sounds like piston slap and is is fairly normal, you may find it also rattles a bit when going from a closed throttle to a trailing throttle (apex of a roundabout etc). I wouldnt worry to much about it, it may need sorting at some point but not an immediate problem.

If the 400 seat is from a twinshock then the seat will fit.

www.srx600.net has quite a lot of info on SRX's

Steve H

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Re: My new SRX
« Reply #2 on: October 23, 2007, 02:41:04 PM »
The ignition circuit is a different circuit to the battery charging circuit, so in theory the battery eliminator wont make any diffrence to starting.
Ok scrap that comment Ive just seen a posting on a mailing list which claims that replacing his battery eliminator with a battery has sorted his poor running. Not entirely convinced but sounds like it might be worth trying.

stiffybrian

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Re: My new SRX
« Reply #3 on: October 23, 2007, 03:22:42 PM »
I found a great help in starting was how you stop the engine the time before. To stop it open the throttle so there's a few revs, 2k say, then as you turn the key off open the throttle full. My theory is it purges any crap mixture in the cylinder.

daisy

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Re: My new SRX
« Reply #4 on: October 23, 2007, 10:36:48 PM »
Thanks for all the comments. Reasurring about the noises and will check out the seat. Went for a quick ride this morning and it started first kick, left it running outside the newsagents though wasnt going to risk an embarrasing moment. Will have a go at the stopping technique tomorrow and see how it goes. I know Ive only had it a couple of weeks but every time I have a quick blast I come home with a big grin.
Thanks again for all your help
Simon

andy230

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Re: My new SRX
« Reply #5 on: October 24, 2007, 09:38:23 AM »
The ignition circuit is a different circuit to the battery charging circuit, so in theory the battery eliminator wont make any diffrence to starting.
Ok scrap that comment Ive just seen a posting on a mailing list which claims that replacing his battery eliminator with a battery has sorted his poor running. Not entirely convinced but sounds like it might be worth trying.

Steve (/all!)

I'd possibly disagree (tho in a very polite, British way)   ;).  I wired the racer with just a generator, ignition coil, CDI and kill switch.

Cadwell starting was lovely (bumped), if a little sweaty.  CR carbs tho.

Also, once I got it back home, and put a sidestand and kickstart on it (no decompressor), I gave it a try just to ensure good compression, and make sure no exhaust smoke, etc.  It started easily (ie. 1st kick) on the lever.  However, this used the time-honoured Brit tradition of gently easing it over TDC and giving it a hefty prod.  I think there is a definate knack, but once you get it its fine.

I think a decompressor, if badly adjusted can make it more difficult to start.  And if disconnected, and left in, can wreck your exhaust valve...!

As soon as the motor starts spinning, its effectively self-generating.  Getting it spinning is the tricky bit...!

a

Steve H

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Re: My new SRX
« Reply #6 on: October 24, 2007, 10:25:08 AM »
I'd possibly disagree (tho in a very polite, British way)   ;).  I wired the racer with just a generator, ignition coil, CDI and kill switch.
Yep, I would agree, the ignition circuit is seperate and you dont need the charging circuit to get it to run. And my initial premise was that changes to teh circuit cannot effect the ignition. However its difficult to argue when people solve problems by replacing the eliminator with a battery. The only thing I can think of is that the capacitor was short circuit and the current it was drawing and corresponding changes in the magnetic field around the charging coil was effecting the ignition circuit coil. My knowledge of this area is thin so this could well be complete bollocks, but I am no longer convinced that they are completely independant (even if the wiring is independant for each circuit)

andy230

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Re: My new SRX
« Reply #7 on: October 24, 2007, 12:35:56 PM »
However its difficult to argue when people solve problems by replacing the eliminator with a battery.

Maybe they disturbed some other dodgy wiring on the ignition side of the ciruit...?  This is all getting pretty hypothetical tho, on a bike we dont know, owned by someone we don't know...!!

a

themoudie

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Re: My new SRX
« Reply #8 on: October 24, 2007, 08:28:09 PM »
Aye Daisy,

Make sure all your wiring and connections are clean, no cracks in the insulation, an NGK plug cap and the correct plug with the correct gap. All details on the SRX600 website. :-*

From cold, close the choke fully, no throttle, one swing of the kickstart to prime the cylinder, turn on the ignition and repeat swing of kickstart. Should start and sit at ~2grand, ride away and put onto half choke after ~1mile steady up through the gears, open choke fully before ~2 mile. Once warm through, rev it, don't lug in any gear! ;D

If the engines warm, no choke, no throttle, but prime cylinder with one swing then turn ignition on and second swing should start. ;D

Hot engine, no choke, no throttle, just turn ignition on and first swing should start. ;D

Ignition works regardless of battery condition, but valve lifter needs to be adjusted as per the manual, no "Aaw that'll do" or else remove in its entirity as per Andy's mail. Use ACF50 over all up front ignition parts and attach universal mudflap to front mudgaurd to prevent spray being flung over the cylinder head and electrics. Also beware of spark plug corroding in the head and being buried by grit!  :-X  Flush the head from the right hand side with plenty of water and an airline before attempting plug removal and use copper grease on the threads when replacing. I had to scrap a whole top end because of the electrolytic corrosion of all the fasteners and the plug into the head casting :'(

Hope you enjoy the beasty and join the Club. 8)

Regards, Bill.

daisy

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Re: My new SRX
« Reply #9 on: October 24, 2007, 11:35:43 PM »
Bill and everyone
Thanks again for all the replies, much appreciated will get the knack Im sure.
All the best
Simon.

guest7

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Re: My new SRX
« Reply #10 on: October 25, 2007, 09:11:35 PM »
If it's any consolation, I am this chairman of this club which made it doubly-embarassing when I couldn't start Steve Hayward's bike  ::)

GC

daisy

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Re: My new SRX
« Reply #11 on: October 25, 2007, 10:54:30 PM »
Onepot
Thanks thats reassuring.
Simon.

Steve Lake

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Re: My new SRX
« Reply #12 on: November 17, 2007, 09:48:39 PM »
I run both my track bikes (srx6's) with no battery.....and they start on the rollers or bump easily cold / warm / hot

and my road SRX ran on a battery eliminator for some time with no problem, though I found that having no lights when the engine stopped a bit of a pain, and my indicators flashed very slowly....so reverted to battery.

John B

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Re: My new SRX
« Reply #13 on: January 21, 2008, 11:51:13 PM »
No-one's mentioned gummed up choke mechanism yet? Although you usually get started then it cuts out quite soon...
Saw an SRX on the Airport roundabout turn-off in Newcastle the other day - nice. Brought tears to my eyes.. Still looking at SZRs still got a 999s...

themoudie

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Re: My new SRX
« Reply #14 on: January 22, 2008, 08:28:18 PM »
A good New Year to you John,

Bijou flats to rent or buy all over the 'old town' now. The old geneology has thrown up a connection in Ashington, so maybe down your way when the 'Spring' has developed a bit, snow drops coming out now! My Mum in Felixstowe has daffies out at the moment, mad!!!

My regards, Bill.