Scooterotica

Ok so I'm happily running around on my Scootopia sh/22 using a 45 pilot, number 5889-2 atomiser, 200 slide and 120 main jet but as I've never had the thing flat out yet I was happy with the dark brown plug colour and thought no more of it until I was advised that I really should put the 50 pilot back in, a 5889-1.5 atomiser and a 140 main jet.

Well I did all of this and it was just flooding it caughing and spluttering all over the place, oily wet plug and oil dripping out the exhaust...... So I put in a 135 main jet, splutters badly, doesent pick up as it should but runs all right at about 3/4 revs nice brown plug, put a 132 main jet in to try and clean up the low to mid range, a bit better but still splutters slightly with ragged acceleration and at 3/4 throttle plug is a bit lighter brown than with the 135...so I'm thinking if I did go flat out ide probably sieze or hole the piston so no good.

So we're do I go from here to get the 3/4 to WOT richer? Put the 140 main jet back in and use a lot leaner atomiser ? 5889-4 maybe?

Cheers chaps.

Who told you that b@11@x? Remind us again what size the engine is.

It's a 175 iron conversion.

Reading your first paragraph, I'm at a loss as to why you fiddled with it !!!

I've a series 2 with a Scootopia carb on ( I changed a jetex 22mm for it ) .45 pilot,125 main, and a 5889-2 atomiser with a 200 slide.Thats on a Casa 185 top end and it runs perfect.

Scooterdude wrote:It's a 175 iron conversion.

Am I right in thinking you've also got an expansion pipe? I think HxPaul's got it about right. Maybe go up a little on the main if you've got an expansion. But I think about 128 tops.

Doom Patrol wrote:

Scooterdude wrote:It's a 175 iron conversion.

Am I right in thinking you've also got an expansion pipe? I think HxPaul's got it about right. Maybe go up a little on the main if you've got an expansion. But I think about 128 tops.

No using a Scootopia clubman, but will almost certainly be getting a franspeed JL3 in a week or so.