Forty series is this a Wipac 2 fault?

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african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 2:18 pm

I have since moved the base plate both ways, there was still not a peep out of the motor.

I did pump some petrol / 2 stroke fuel into the crabs air intake, that did nothing.
Last edited by african imp on Fri Jan 18, 2019 3:49 pm, edited 1 time in total.

tambikeboy
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Re: Forty series is this a Wipac 2 fault?

Post by tambikeboy » Fri Jan 18, 2019 3:28 pm

Try putting a couple of mm of raw petrol down the bore..if you have compression/spark /fuel then bang other than that it can surely only be that the fuel and spark are not meeting up and it's flooding....
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african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 3:41 pm

When I tried to start this motor in 2017 I gave up in the end.

I really do not want to do that this time so I am trying as many avenues as is possible.

I fitted a known very good HT lead, there was a tiny suggestion of firing, just the one, then nothing.

Next I removed the as new Champion D16 spark plug from the same engine, I tested that for a spark with the HT cable that they came off the same engine with.

On pulling the starting cord there was a bright spark, then nothing, I next tried a used but clean NGK A6 plug, same again, no spark.

Does this take me back to the points for re inspection, I think so?

That will be tomororw as I have done enough today. :lol:
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Charles uk
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Re: Forty series is this a Wipac 2 fault?

Post by Charles uk » Fri Jan 18, 2019 3:43 pm

Remove the flywheel to see if the key is fitted & visually inspect the ignition wiring.

The baseplate locating screw should fit into the dimple in the crankcase neck.

Measure the carb venturi with the back end of a 1/2" drill bit!

Did you bead blast that crankcase with the ignition in place?

You only need 3 things for a 2 stroke to fire, fuel/air mix, a good spark at the right time & enough compression.

The majority of us, make sure a motor will run before restoring.
Make it idiot proof and someone will make a better idiot.

african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 3:47 pm

Thanks,

This motor has never been in my beed blasting cabinet, they never do, ever.

Cleaning the head and block of a Seagull is done by hand and with wire brushes.

I have a 12mm high speed drill here, so just smaller than the 1/2" you mention, mine is a loose fit.

I will try your other ideas in the morning.
Last edited by african imp on Fri Jan 18, 2019 4:04 pm, edited 1 time in total.

african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 3:52 pm

My original 2 stroke days were with a 100cc racing Go Kart, or Formula K, the motor was an Italian racing Pirilla engine.

We knew that fuel and a spark means ignition, lean it off and you go faster, lean it too much and you sieze the motor :x

african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 4:05 pm

Who has a good and safe way to remove the flywheel, as even with all the British Seagulls that I have restored I have yet to remove a flywheel or open a motor.

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Charles uk
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Re: Forty series is this a Wipac 2 fault?

Post by Charles uk » Fri Jan 18, 2019 4:15 pm

So that's a 1/2" carb, what's the original?
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african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 4:16 pm

Checking to see if the drive shaft is in place I slid a ponier into the slot in the flywheel.

It goes down 22mm which is 7/8" before it stops, is this correct?

Is th key in place?
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african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 4:18 pm

Charles uk wrote:So that's a 1/2" carb, what's the original?

This carb came with the engine it is fitted to.

haventaclue
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Re: Forty series is this a Wipac 2 fault?

Post by haventaclue » Fri Jan 18, 2019 4:19 pm

I have an old 40+ which had very intermittent spark,it turned out the points wire was broken where it is attached to the Wipac coil,just a thought.

african imp
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Re: Forty series is this a Wipac 2 fault?

Post by african imp » Fri Jan 18, 2019 4:31 pm

haventaclue wrote:I have an old 40+ which had very intermittent spark,it turned out the points wire was broken where it is attached to the Wipac coil,just a thought.

Thanks, I. will check that out first in the morning.

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Charles uk
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Re: Forty series is this a Wipac 2 fault?

Post by Charles uk » Fri Jan 18, 2019 5:43 pm

Can any of the readers of this thread, post a typical list of the steps they would normally take in the restoration of a 40 plus they've just bought.

2 or 3 different lists would paint a better picture.
Make it idiot proof and someone will make a better idiot.

tambikeboy
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Re: Forty series is this a Wipac 2 fault?

Post by tambikeboy » Fri Jan 18, 2019 6:46 pm

Charles uk wrote:Can any of the readers of this thread, post a typical list of the steps they would normally take in the restoration of a 40 plus they've just bought.

2 or 3 different lists would paint a better picture.
An honest answer to an honest question
The very 1st thing I check is it sparking does it have compression
Don't bother to much regarding fuel (there usually bunged up anyway. So basically i then know it's sparking know my ht lead is probably ok smile because I don't need to purchase a new spark plug and know ignition system is 99% ok then the spanners come out after that just make sure I do as could a job as I can.in failing that jump on here and ask the guru's IT WORKS EVERY TIME.
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Charles uk
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Re: Forty series is this a Wipac 2 fault?

Post by Charles uk » Fri Jan 18, 2019 7:00 pm

I meant the spanner steps as well, everything before the decorating starts.
Make it idiot proof and someone will make a better idiot.

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