AQ 131 timing

[Johnnieboy13]

Hello Forum

I have an AQ 131, I recently replaced the timing belt, cleaned and renovated the carb, put everything back together and noticed that it started straight away, sounds fine, revs good so I thought i would get the timing light out.

It states 6 degrees BTDC on the top of the air filter, however with the revs at tickover I notice that the main crank pulley timing mark is approx 35 to 45 degrees off to the left of the set of timing marks showing on the raw water pump markings.

I rechecked my timing marks and they seem fine, have I missed a step or have I simply screwed up somewhere in my alignment...

many thanks in advance

john

 

[bruceb58]

Re: AQ 131 timing

You measuring at idle RPM?

 

[Johnnieboy13]

Re: AQ 131 timing

Hi Bruce

Yep, at tick over, seems like approx 850 rpm's.... was thinking I must have been out on my marks when the belt went back on....

 

[bruceb58]

Re: AQ 131 timing

The marks only really matter for the valve timing.

What happens when you set the timing to spec? How does the engine run?

How much advance do you get when you increase RPM?

 

[Johnnieboy13]

Re: AQ 131 timing

Unfortunately it has just started pouring down up here, will try tomorrow to double check all timing marks, then will try to get it near the marks at tick over.....will let you know how it sounds bruce, thanks mate....