carb??? help needed

[phil_DT]

Well i got up this fine snowy mornin, bike wont start and there is a tinny noise coming from inside the carb. ive got a decent spark and the bike is getting fuel but still no joy!! any suggestions??
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1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....

[derbi x-treme]

just try taking the float bowl off there maybe dirt in the jets or maybe a loose jet maybe the intake has a split in it maybe water in the carb

[phil_DT]

just had a look inside the carb and the noise seems to be the floats??ive cleaned out all the jets and re-assembled. bike still wont go tho!
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1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....

[phil_DT]

alrite now i think its proper fucked! the engine will not turn over at all. the kickstart is stuck solid and when i try and bump start it, the wheel just locks up and nothin happens i suppose this is going to be expensive???
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1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....

[Marci]

What gear are you trying to bump it in?? Sounds like it could have siezed...

Did you have antifreeze in coolant?
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FAB-Racing MiniMotoSidecars - Back with a vengeance - F1 Class 2011...
CBR170 engine, custom chassis - www.minimotoscene.co.uk

[Dalemac]

what would antifreeze in the coolant do?

sorry for my silly questions...
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YBR125 -> GPZ500S -> SL1000

[Marci]

It's snowing out. Therefore it's cold out. If he DIDN'T have antifreeze in his coolant, then his coolant may have frozen. As water freezes it expands. This could have caused it to force it's way thru the gasket or even split the barrel or head internally, causing zero compression and possibly a siezure of the piston. If it's gotten past the gasket, it could then have flowed into bottom of engine and frozen overnight... effectively meaning nothing will move until it's defrosted, however then he'll have a load of water sloshing around within the engine, meaning it still won't start.
____________________
FAB-Racing MiniMotoSidecars - Back with a vengeance - F1 Class 2011...
CBR170 engine, custom chassis - www.minimotoscene.co.uk

[Dalemac]

oh. so will this happen to me? didnt know i needed antifreeze.....
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YBR125 -> GPZ500S -> SL1000

[Marci]

It COULD happen to anyone who doesn't use antifreeze, hence antifreeze exists. All depends on the temperature of the area in which you keep your bike. EG: Outside overnight - DEFINITELY use antifreeze. In a garage attached to a house that has central heating - may get away without it, but still wouldn't risk it.

I personally don't use any, but I use alternative stuff that does the same job by coincidence.

Always best to have some in than none at all. A £5 bottle of antifreeze could well save you from having to buy a £100 cylinder.
____________________
FAB-Racing MiniMotoSidecars - Back with a vengeance - F1 Class 2011...
CBR170 engine, custom chassis - www.minimotoscene.co.uk

[Finglonga]

[Dalemac]

well i have a ybr. what should i do?
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YBR125 -> GPZ500S -> SL1000

[Dalemac]

oh im aircooled. stupid idiot.

will teach me to know nothing about my own bike.
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YBR125 -> GPZ500S -> SL1000

[phil_DT]

mine is aircooled aswell. wel ive bin tryin all day but the engine is defo seized! i took the spark plug out and there was a little pin stuck in the side of it???? i presume some type of piston pin or??? well anywayz it isnt a good sign ahh well just gives me an excuse to fit a big bore kit haha
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1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....

[wisebeuy]

Not sure what bike you're riding, is it 2-stroke? Perhaps noise was something to do with oil pump? If that isn't working then big and small end will go no lubrication and will seize.

Not trying to scare you, just offering it as a possibility

Andy

[phil_DT]

yer, when i get the BB kit im removing oil tank and pump. i will just premix in the tank. its just guttin that when it snows i got no bike to go for a burn on!
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1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....

[Pete.]

[phil_DT]

the pin i found in the spark plug was about 4mm long and about the diameter of a pencil lead? tommorow i will strip engine down and have a look at what the damage is im not impressed only been on the road for a week after spending £600 getting it through the MOT not good.
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1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....

[Pete.]

Sounds like the piston-ring stop-pin. It's job is to keep gap in the piston ring away from the ports, or the end of the ring pings out and snaps off. If the pin has come out, your piston is scrap and your barrell will be damaged.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[phil_DT]

yer! shit. ah well will have to fork out £70 for a 70cc chromed barrel and piston then. life goes on....
____________________
1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....

[wisebeuy]

If you can be arsed to do premix, then thats your best option, is the only way to make sure your bike gets the correct mix. But look on the brightside, its a good excuse to get the big bore kit

Hope you get back on the road soon.

Andy

[phil_DT]

rite ive just ordered the 65 big bore kit, now i will have to premix in the tank what do u think is the best fuel/oil ratio?
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1992 DT80MX with Gianelli zorst and Mallosi Carb. Goes through engines faster than tyres.....