Hard / No start.
Post Reply    Forum -> Not-So-Modern
Author Message
Hooked
P200E
Joined: 11 Apr 2010
Posts: 470
Location: The Town that dreaded Sundown.
Mon Oct 12, 2020 10:16 pm quote
So after one hell of a year mixed with trying to sell my P200e, to going full bore on a old flame that is Vintage VW's. The P200e is back up on stage with a renewed motivation.

After the engine rebuild last year I had it running ok but with a very high idle and cable adjustments frustrations that kicked my rear. Now, back at it with a much helpful 4th hand tool I have gotten the cables at least headed in the right direction. But now I am back to square one on the running issues. It really will not even start unless leaned over to the battery side and when it does any amount of throttle it dies.

I put a new plug cap and spark plug wire on it. Pulled off the 24/24 carb and completely cleaned again. While cleaning found my jets where very odd. Searching shows for a stock '81 P200e with autolube I should be using a:
55/160 idle
160 Air
BE3 Mixer
116 main

Well what was in the carb was very odd.. it had:
38/120
160
BE3
95 <---- ?????

What I had on hand and what is currently installed is :
52/140
160
BE3
115

My idle screw was at 2.5 turns but actually started and ran for 10 seconds out around 3 or 3.5. The mixer screw was out 1.5 turns.

I am getting good spark and my timing is set to "A" or 23 BTDC.

Looking forward to your take and/or slap up side the head and as always the amazing help here is always appreciated!
Enthusiast
too many
Joined: 16 May 2012
Posts: 66
Location: Norway
Tue Oct 13, 2020 12:17 am quote
Your idle jet is most likely way to "fat".

The standard is 55/160 (2,9) and yours is 140/52 (2,69).

So most likely the engine "drowns" when idleing.

Get your hands on a proper Dellorto 55/160 and try that.
Hooked
P200E
Joined: 11 Apr 2010
Posts: 470
Location: The Town that dreaded Sundown.
Tue Oct 13, 2020 9:01 am quote
Svint1 wrote:
Your idle jet is most likely way to "fat".

The standard is 55/160 (2,9) and yours is 140/52 (2,69).

So most likely the engine "drowns" when idleing.

Get your hands on a proper Dellorto 55/160 and try that.
Will do. Going to have to order one unless anyone has had luck finding these local?
Molto Verboso
2007 Stella 150
Joined: 02 Nov 2019
Posts: 1116
Location: Rochester, Minnesota
Tue Oct 13, 2020 4:44 pm quote
Ape wrote:
Svint1 wrote:
Your idle jet is most likely way to "fat".

The standard is 55/160 (2,9) and yours is 140/52 (2,69).

So most likely the engine "drowns" when idleing.

Get your hands on a proper Dellorto 55/160 and try that.
Will do. Going to have to order one unless anyone has had luck finding these local?
A 1/16 drill bit is 1.5875mm, then you would have a 52/1.5875 and you could see if it helps.
Scooting the Ozarks is a scooter rally held in Eureka Springs, Arkansas offering riders scenic twisty rides, poker run, and more.   Vespa Wasp Pin Badges   Yelcome Leather Top Cases and Roll Bags for Piaggio Vespa PX LX LXV GTS GTV
Post Reply    Forum -> Not-So-Modern
[ Time: 0.1439s ][ Queries: 25 (0.0351s) ][ Debug on ]