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now engine won't start and sparks wet
eddyg - 10/2/10 at 04:36 PM

HI guys just thought i would try the engine again before stripping down the carbs and it won't start i checked the plugs and they seem to be wet with petrol(smells like it) quite dark though, i am a bit of a mechanical novice does this mean the engine has flooded or is it completely knackered?

[Edited on 10/2/10 by eddyg]

[Edited on 10/2/10 by eddyg]

adithorp - 10/2/10 at 04:45 PM

Have you got a spark?

Just in case you don't know how to check...
Pull off one of the plug leads, stick a plug in the end and hold it with the body against the block. Turn the engine over and watch for a spark.
Don't hold it with bare hands... you might get a bit of a shock! Use insulated pliers.

adrian

eddyg - 10/2/10 at 05:28 PM

Yes i'm pretty sure it's getting a spark as it sort of turns then dies i think the sparks are just too soiled but i don't wont to replace them just to get soiled again if there is something wrong with carbs etc

McLannahan - 10/2/10 at 05:39 PM

Blades are very fussy about their plugs and can be really tricky to start once their plugs are wet.

Andy Bates is the Blade guru and well worth asking but I'd imagine a new set of plugs and it'd fire.


I know mine was like this and if you do a search on Blades starting - it's an annoying common issue!

McLannahan - 10/2/10 at 05:42 PM

http://www.locostbuilders.co.uk/viewthread.php?tid=119276

http://www.locostbuilders.co.uk/viewthread.php?tid=23886

eddyg - 10/2/10 at 06:09 PM

Thanks guys at least it doesn't mean its had it. I am going to clean the carbs and repalce plugs, the fuel pump sounds ok and i rarely use the choke. At the moment i can't get the blasted screws off to remove the throttle sensor.

Cheers once agin

dhutch - 10/2/10 at 07:07 PM

Not a blade, but i was on the same job yesterday,.
http://www.locostbuilders.co.uk/viewthread.php?tid=129827

Daniel

Peteff - 10/2/10 at 07:43 PM

Get some standard plugs, don't get tempted by iridiums they are even more temperamental. You might get away with burning the old ones off on a blowlamp just to see if it will fire up.

r1_pete - 10/2/10 at 09:07 PM

quote:
Originally posted by Peteff
Get some standard plugs, don't get tempted by iridiums they are even more temperamental. You might get away with burning the old ones off on a blowlamp just to see if it will fire up.


and if you can get them back in whilst they are still hot, it should fire up quite easily.

beer monster - 10/2/10 at 09:33 PM

lay money on it its the plugs.got through 3 sets whilst building mine.

carpmart - 11/2/10 at 10:19 PM

I use iridium's in my blade engine. Agree that they are slightly temperamental. Make sure you don't switch off after a long idle. I blip the throttle and always give it a few revs before switching off. Just keeps the plugs from fouling. They last quite well in my race engine and I change them from a precautionary point of view twice a season so every 6 race meetings.

If you end up with wet plugs the only solution is get em out and blast them with a blow torch.