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Post by stepthrutuner on Feb 16, 2011 8:10:04 GMT -5
I also checked the ac voltage at the cdi connector with the scooter running. I found 210vac @idle and a max of 280vac while revving??? May have to get back to you on the stator info. Well, I said I said that I have the same engine as you, however, mine is a/c while yours is w/c.... not sure if their stators are the same?
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Post by lshigham on Feb 16, 2011 9:27:17 GMT -5
AC and LC have the same stators, it's the year that matters. What year is yours?
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Post by lshigham on Feb 16, 2011 9:40:26 GMT -5
Oh, and an update. It's sort of working, usable but still rather stuttery at certain rev ranges.
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Post by stepthrutuner on Feb 16, 2011 14:26:59 GMT -5
AC and LC have the same stators, it's the year that matters. What year is yours? It's an 02 - the first year for the Piaggio motors for Derbi. |
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Post by lshigham on Feb 16, 2011 15:11:14 GMT -5
You'll need the old type stator then. The last year they were used was 2005. This is probably the cheapest one you'll find: beedspeed.com/product_info.php?products_id=6553You'll see the pre '05 parts referred to as ''old shape'' and 06- as ''new shape''. This is because the whole body shape of the Runner line changed then. |
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Post by lshigham on Feb 16, 2011 16:11:40 GMT -5
Tore the top end down to find milky oil round the head - I'm sure you guys know what that means. My head gasket's fooked  Probably didn't help matters, to be honest. |
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Post by lshigham on Feb 16, 2011 16:40:57 GMT -5
Ohhh, it gets better. The chrome plating is almost entirely worn off the ring, after only 400mi. I've replaced it for now with a ring that's done 1500mi, but still has noticeably more meat on it.
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Post by 190mech on Feb 16, 2011 16:44:39 GMT -5
Air filter inoperative?
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Post by lshigham on Feb 16, 2011 16:52:08 GMT -5
A pic to show what I mean. Old on the left. Attachments:
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Post by lshigham on Feb 16, 2011 17:27:28 GMT -5
Sorry, cross posted. Possibly, but I am very careful to clean it regularly (100 or so mi). I reckon a leaky head gasket had a large part to play. It's been copper RTV'd up for safety, all back together bar the exhaust which I shall reinstall in the morning. |
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Post by stepthrutuner on Feb 16, 2011 20:57:19 GMT -5
You'll need the old type stator then. The last year they were used was 2005. This is probably the cheapest one you'll find: beedspeed.com/product_info.php?products_id=6553You'll see the pre '05 parts referred to as ''old shape'' and 06- as ''new shape''. This is because the whole body shape of the Runner line changed then. That's a pretty decent price for the stator. I ordered some rollers from Beedspeed way back in 03 when finding Chinese scooter (my first scooter) parts here in the States was practically impossible. |
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Post by troy1896 on Feb 16, 2011 22:28:45 GMT -5
Ahhh.....the joys of a high performance scoot  Coolant leaking into the cylinder sure would do it. Didn't even think to suggest it because I'm usually playing with AC cylinders. Glad you found the culprit. |
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Post by lshigham on Feb 17, 2011 1:45:01 GMT -5
You'll need the old type stator then. The last year they were used was 2005. This is probably the cheapest one you'll find: beedspeed.com/product_info.php?products_id=6553You'll see the pre '05 parts referred to as ''old shape'' and 06- as ''new shape''. This is because the whole body shape of the Runner line changed then. That's a pretty decent price for the stator. I ordered some rollers from Beedspeed way back in 03 when finding Chinese scooter (my first scooter) parts here in the States was practically impossible. If you want anything I can ask on the weekend when I'm down at Shiny Red's, I should be able to get second hand parts cheap. I got a £55 Malossi reed block for £10 last time :riding: |
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Post by lshigham on Feb 17, 2011 1:49:19 GMT -5
Ahhh.....the joys of a high performance scoot Coolant leaking into the cylinder sure would do it. Didn't even think to suggest it because I'm usually playing with AC cylinders. Glad you found the culprit. Thanks for all your suggestions guys, I'm going to slope off and get a compression tester now  |
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Post by lshigham on Feb 17, 2011 2:46:26 GMT -5
Stage6 Sport Pro/ Racing Piston Ring £11.18 x 1 £11.18 Piaggio Small End Needle Bearing £4.03 x 1 £4.03 PJ1 High Temperature Black Exhaust Paint - Gloss Black £8.33 x 1 £8.33 Polini 12mm Circlip £0.87 x 2 £1.74 Stage6 Exhaust Gasket £1.99 x 1 £1.99 Been shopping |
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Coolant leaking into the cylinder sure would do it. Didn't even think to suggest it because I'm usually playing with AC cylinders. Glad you found the culprit.