peugueot trekker 100cc build

[scootmad]

Hey guys so this is my other scooter from the same guy i bought the mbk off . he said it was only a carb problem on this bike but since cleaning the carb and can verfi its getting to the spark plug i currently suspect low compression but i can't test until wednesday.

its a nice little bike i did start stripping before taking pictures lol sorry. but i can't strip the bike any farer until the compression tester comes, also the cvt cover bolts and the kick over gear which was missing.

the bike turns over with the electric start but it turns over super slowly but i have noticed the magneto is rusty i don't know if that will cause any problems but the bike does spark when tested by putting the spark plug to a ground and turning over. anyway pics times .

[scootmad]

Hey guys back again, so today i got my compression tester though the door yippi so i did a compression test and it turns out it was only at 75psi which is no where near enough to get it to fire, so here are some pics tell me what do you think it could be because the rings look good, the piston has a lot of carbon build up

[Lucass2T]

I would at least go for a new set of rings.
Where you from btw? England i guess?

[scootmad]

Hey lucass2T yea im from england near manchester . is it worth buying a new piston as well or just new rings ?

[derbiman]

Might be a good time to replace crank seals also.

[Lucass2T]

Sept 23, 2015 13:45:14 GMT -5 scootmad said:

Hey lucass2T yea im from england near manchester . is it worth buying a new piston as well or just new rings ?

Manchester united got their ass kicked by PSV (soccer team from my city) 10 days ago 
But i would just buy rings unless the piston looks really knackered.
 oldgeek knows a way to measure piston to cylinder clearance with basic tools. You might wanna try that.

edit: i see the pics now. That piston does'nt look new anymore:P A new piston is always a good thing. Best thing would be to have the cylinder bored and honed and place a oversized piston.