Timing / Nipping up

[64gl]

just finished fitting 12v kit and went for a quick spin .

nipped up on me .

don't know if this is cos i've got the timing wrong or something else .

any ideas please ?

[bryno]

Hopefully no lasting damage

Timing would be logical place to start, though if it's back on the same marks as when you took it apart, would be odd.. have you checked the plug since, if it shows lean running would at least rule out other mechanical failure?

[64gl]

thanks for the reply . hope there's no damage , doesn't seem to be and caught it straight away .

there were no previous marks and i put on a competely new stator / flywheel . i have had to dremmel the adjuster holes as it is .

i re-checked the timing marks again and i have altered it slightly .

i think it is about as good as i can get in now , so hopefully it will be ok .

i've really struggled to get good info on vespa timing . spent hours on tinterweb and got bits , but nothing great . any ideas ?

[1965mod]

I might be talking utter boll%ks but I've noticed on my new flywheel and stataor plate that the clearance is very tight between the magnets and metal bits which the coils bolt on to - could it be that when it heats up both bits expands and cause a temp seizure? Don't really know mate - just giving it a stab.

Graham

[bryno]

^ worth a look, see if there is some scoring somewhere.

There is a section on timing here: www.scooterhelp.com/tips/timing/timing.main.html

Dunno if you have tried it with a strobe light?, I did mine with one to be as acurate as possible..

[64gl]

cheers guys ,

i have re-done the timing nad it is different to last time .

i'll see how it goes . dont have a strobe light so i'm going to have to borrow one just to double check .

fingers crossed .

thanks again for the replies

[dazh]

a mate strobed my t5 motor when i put on a new flywheel and stator, and just lined it up with the other removed items, it was out and needed re-adjusting.

[64gl]

cheers . now sorted good and proper .

just waiting for this sodding weather to clear to give it a good blow out .

made sure i marked the case and flywheel .

borrowed a mate's strobe and did need to adjust it again .

looking forward to getting out again not worrying if its going to nip up . ;D ;D ;D ;D