t5 172 info needed

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soulboy
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ok came from cov yesterday had a slight heat sieze I was hammering it but caught it in time ( carb had came loose ) now I need to no does the kit have a head gaskit as mine as also theres a slight indent in the middle of the piston ..is that ignition as ive been told to leave it on the marc cheers
jackskater
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i might be wrong and forgive me if i am but im pretty sure thats a sign of pre ignition so the timings out and will soon hole the piston if it carries on like that, but await the reply of more seasoned professionals :)
soulboy
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Main scooter: t5 172 and a bit more
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thanks mate I thought that so ive anti clockwised a mill and half
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sean brady scooters
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dont confuse matters here ,it has only siezed and burnt the top of your piston because of the air leak and hence lean mixture ...presuming you had your timing set as malossi recomend 14 btdc
Sean Brady Scooters - 01765 690 698
soulboy
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shaun ive turned my stator a 1.5 mill anti clock wise from stock is that about right it seems a lot better
soulboy
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Main scooter: t5 172 and a bit more
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can some one tell me to put my mind at rest to go from 16 d to 14 d on my timing do I go clockwise or anti clockwise cheers
santacama
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Clockwise. If you did anti clockwise 1,5 mm you are aprox. 18 BTDC. That plus an air like = caput.
soulboy
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Main scooter: t5 172 and a bit more
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that's all I needed to no thanks a lot mate ;)
santacama
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To really set accurately your engine timing you need a timing gun, don't trust the factory marcs.
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