JAP80 timing Problem

First/ choosing the correct key-way (only one on the shaft) As you noticed, if the parallel points cam is fitted reversed, both key-ways retards it too much. Using the points cam 'correctly' (the lift shoulder on the cam is now going clockwise)and choosing the most advanced Key-way, and turning the points frame anti-clocwise, making the most advanced of all choices, I think it is about 25Degrees.

I tried holding the 'hot' lead and turning the flywheel backward and forward, trying to feel when it sparked, while watching the piston/flywheel, so see if I could get some accuracy, but not too good. With the flywheel closed in as photo, is there a way to make a 'simple' timing light from the spark lead?

I think I might have a compression tester somewhere!

Confession time!! When I replaced the barrel I broke the top ring

50 years of experience and now I forget the ring locator pin!! I removed it and moved number two to the top of the piston.)

I'll report back in a couple of days after your tests.

Cheers, Camerart.

Last edited by Camerart; 02/12/13 12:22 PM.

Entire Thread
Subject	Posted By	Posted
JAP80 timing Problem	Camerart	18/11/13 08:02 AM
Re: JAP80 timing Problem	grumpy	18/11/13 08:57 AM
Re: JAP80 timing Problem	Camerart	19/11/13 06:15 AM
Re: JAP80 timing Problem	grumpy	19/11/13 06:26 AM
Re: JAP80 timing Problem	Camerart	20/11/13 05:40 AM
Re: JAP80 timing Problem	grumpy	20/11/13 06:33 AM
Re: JAP80 timing Problem	Camerart	24/11/13 12:09 AM
Re: JAP80 timing Problem	Camerart	24/11/13 01:26 AM
Re: JAP80 timing Problem	grumpy	24/11/13 07:12 AM
Re: JAP80 timing Problem	Camerart	29/11/13 12:30 AM
Re: JAP80 timing Problem	grumpy	29/11/13 06:28 AM
Re: JAP80 timing Problem	Camerart	30/11/13 11:16 PM
Re: JAP80 timing Problem	Camerart	30/11/13 11:23 PM
Re: JAP80 timing Problem	grumpy	01/12/13 08:38 AM
Re: JAP80 timing Problem	Camerart	02/12/13 01:19 AM
Re: JAP80 timing Problem	Camerart	03/12/13 11:55 PM
Re: JAP80 timing Problem	grumpy	02/12/13 06:42 AM
Re: JAP80 timing Problem	grumpy	04/12/13 06:50 AM
Re: JAP80 timing Problem	Camerart	04/12/13 10:01 AM
Re: JAP80 timing Problem	grumpy	04/12/13 01:44 PM
Re: JAP80 timing Problem	Camerart	05/12/13 12:48 AM
Re: JAP80 timing Problem	grumpy	05/12/13 06:35 AM
Re: JAP80 timing Problem	Camerart	05/12/13 02:12 PM
Re: JAP80 timing Problem	grumpy	05/12/13 07:04 PM
Re: JAP80 timing Problem	Camerart	08/12/13 11:44 PM
Re: JAP80 timing Problem	Camerart	08/12/13 11:53 PM
Re: JAP80 timing Problem	grumpy	09/12/13 06:33 AM