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Author: Subject: R1 won't start again
smart51

posted on 17/10/05 at 07:29 PM Reply With Quote
R1 won't start again

Finally I've got my exhaust. Tried to start the engine again (with the exhaust this time). It turns over but it won't fire. Tested the wiring and all looks OK, removed a spark plug and there are sparks. So fuel then. I only put a bit in before. Round trip to the petrol station, another 5 1/2 litres. Turns over, but won't fire, not even a cough or splutter.

What should I try to get it running. Bear in mind that I've had it running before, but only for a second or two.

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OX

posted on 17/10/05 at 08:23 PM Reply With Quote
what do your plugs look like,,are they sooted up
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Hellfire

posted on 17/10/05 at 08:33 PM Reply With Quote
Like OX says, it sounds like your plugs. Stick a new set in and try it again.






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smart51

posted on 17/10/05 at 08:39 PM Reply With Quote
the plug that I took out looked like new (it is) ran my finger over the top and it didn't feel oily.
I'll pick up a new set the next time I'm near a shop. What else might it be?

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_Aero_

posted on 17/10/05 at 09:29 PM Reply With Quote
A good tip is to pre-warm them this evaporates off any residue and helps starting. Is fuel making it to the injectors? May be a fuel supply problem... did you run out of fuel when you ran it last time? If so the fuel may not have yet reached the fuel rail... as the pump needs fuel to lubricate you may have inadvertantly b*ggered the pump. Check for blocked filters also... if you have spark it's either of the two!
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keith

posted on 17/10/05 at 09:43 PM Reply With Quote
non starting r1

are you using the original ignition system...ie turn key barrel,if not do you know about the drop voltage resistor?
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smart51

posted on 18/10/05 at 07:13 AM Reply With Quote
My engine is carbed and there is a smell of fuel after it has turned over so at least some is getting through. I couldn't vouch for the tune of the carbs other than it fired quick enough last time without the exhaust, although that was a few weeks ago. I didn't run out of fuel the last time as far as I know.

Keith, voltage drop resistor? There isn't one in the haynes manual or R1 service manual wiring charts. What is this?

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smart51

posted on 18/10/05 at 05:53 PM Reply With Quote
OK, bought a new set of plugs. The old ones were slightly grey. A quick wipe of the terminal with a finger made them a bit brighter again. Slight smell of petrol on the plugs but they looked fine.

Charged up the battery for an hour then tried cranking. It turns over just fine but again, no hint of fireing. So what next?

The plugs are new, they are geting a spark. The spark timing was OK a few weeks ago and has not been touched since.

The engine turns over OK. Nothing has been touched on the engine except the exhaust manifold studs so I assume that the internals are well enough.

There is fuel in the tank, the pump clicks on key on, there is a smell of fuel after cranking. Some fuel is getting through. The carbs havn't been tampered with since the last time it was fired up. Is there anything that could have gone wrong here?

Help!

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OX

posted on 18/10/05 at 07:41 PM Reply With Quote
try draining your float bowls,the fuel could be stale,unleaded fuel is crap for going off but i wouldnt of thought it would of gone off in 2 weeks but its worth a try
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Peteff

posted on 18/10/05 at 08:33 PM Reply With Quote
As Ox says, drain the floats as you can get condensation in there. Take the plugs out and wazz it over without them in for 30 seconds or so then warm them with a blowlamp or similar and bung them back in quick and try it again but don't use any choke. Make sure you get the leads on the right way if they're not numbered. Good luck with it.





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

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smart51

posted on 19/10/05 at 05:34 PM Reply With Quote
Now we're starting to get somewhere. Drained the floats of a very orange-yellow petrol. eugh. disconnected the fuel hose an pumped out quite a bit more until it started to run clear. rust? Anyway, I now have 400ml of orange fuel to dispose of. Not as much fuel came out of float chamber No3 and none at all out of no 4.

A guy at work suggested that I put a few drops of fuel in each carb and try it. It coughed. Then I remembered that someone told me that an engine will run on WD40. A squirt in each cylinder every second or two ventually got it running and it settled to a rough sounding idle of 5000 RPM. The idle adjsuted soon sorted that but it did sound a bit rough. So the problem is fueling.

I know next to nothing about carbs. What do I have to clean / check / replace to get fuel to flow? BTW, on an R1 the fuel line goes into No2 carb and link pipes join each one to its neighbour.

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OX

posted on 19/10/05 at 09:00 PM Reply With Quote
it sounds like 1 or 2 of the pilot jets are blocked caused by the crappy fuel,drop them off if you want and i'll give them a going over,orrrrrrrrr first try this,,but it depends how bad they are,,,,,,replace old fuel with new,connect every thing back up again,,,put your arm across the bank of carbs so your blocking off the air ,hold the throttle flat out and give the engine a good turning over,if you hear signs of life take off arm and fully shut the throttle and then try with the choke on
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smart51

posted on 20/10/05 at 07:32 AM Reply With Quote
Thanks for the offer Ox. I'm off on my hols on Saturday. I'll have to sort it out when I get back.
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smart51

posted on 21/10/05 at 04:20 PM Reply With Quote
I removed and cleaned my carbs yesterday. There was grit and what seemed to be mud in the float chambers and grit on the piston valves. I used nearly a full can of carb cleaner, Anyway, the fuel now goes to all the right places.

I found that 2 of the pilot screws had become detatched from the needle bits on the end. The needles were wedged in and needed pushing out. Better to find out now than when trying to set the emissions.

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