Help :(

I changed my head on my scooter last week just a standard replacement and now I have a list of problems

Scooter takes ages to start

Doesn't tick over at all (cuts out literally straight away)

It's really slow at accelerateing

And the top speed is probably 20 mph (feels like its holding back

Really don't know what to do any ideas

 

Oo and some times it get a power burst and goes fast as f**k :/

 

did you torque down the bolts..
might have a slight leeak from the gasket..

 

No I just cranked then down tight

 

cylinder haed bolts should be clamped down to the correct torque setting...

to loose.. easy to guess
to tight, might strech or break a stud.

could be not tight enough, but i wouldnt guarantee that..

no idea what yours should be, but neeed to be done on opposites.. 1, 3, 2, then 4

 

Well I've checked them and there still tight ((

 

did you move the barrel around, might be a leak in the bottom gasket.

surley must be something you have moved..

 

ps ...
why did you change the head in the first place?

 

Cause it kept leaking water and was scored abit

 

did the head have 4 rubber 0'rings in the top of it? "on the inside" were the bolts would go through to tighten it down? if you missed one of them you will be letting water into your bore. = fail lol

 

Ill give it a goo I'm just getting fed up with it ATM it's just a constant cost and never seams to run propperly ;@

 

we have all been there, happens every now and again if your on the roads/.

 

Would it not start if it had water in the bore though ?

 

it sholdnt start if there is water in the bore. just like if its flooded with Petrol it wont start!

but.. my old friend had a aprila rs 50, and he did the head on it, and missed out the 0'rings, and it ran. but pissed water out the exhaust! haha dont have a clue how it was running...

 

Piston in the right way round?

 

Wait til you start driving, Cars cost 10x more than bikes to run, Imagine the costs then !

 

The arrow pointing down ?

 

Yes