4stroke carb on a 2stroke

[Ivan_200]

I have a dellorto phf 32, googled it and it comes on 4 stroke engines (i think). Would it work on a 2 stroke tuned vespa engine? Does anyone have first hand experience on this matter? Thnx

[DaveTomo]

don't know if this will help,but you can get a bush to convert a 4 stroke PHBH to 2 stroke http://lambretta.co.uk/catalog/product_ ... ts_id=3486 maybe the same exists for PHF32? or that one may even fit,I don't know.Could be worth contacting eurocarb http://www.dellorto.com/default.asp but I'm sure I've read somewhere of people using 4 stroke carbs on a 2 stroke, I think Knowledge(Martin) wrote somewhere about aprillia being 2 stroke engines but with 4 stroke carbs.Don't know if any of my ramblings have helped or not.............. I'll get me coat

[Ivan_200]

thanx for that info man

anyone else?

[Ivan_200]

here's the mail i got

Hi

It could work with 2 strokes if you take the accelerator pump off.

Best regards


Matt Cooper
eurocarb ltd.

[Knowledge]

I've converted a few 4 stroke carbs to 2 stroke, but if the carb has an accelarator pump, then it sounds like really hard graft to convert it to 2 stroke.

I would put it on ebay and buy something more appropriate.

[Ivan_200]

I've converted a few 4 stroke carbs to 2 stroke, but if the carb has an accelarator pump, then it sounds like really hard graft to convert it to 2 stroke.

I would put it on ebay and buy something more appropriate.

How did you convert them? So it can't work even with accel. pump on 2stroke?

[Knowledge]

Conversion involves pushing out the brass insert that holds the atomiser, and replace it with new brass bush that has a collar which weakens the fuelling at low revs. The bush costs less than a tenner, and it is easy to fit, but my concern is that the original 4-stroke carb might be worth more than a you could buy a second hand two stroke carb.

It seems a risk to try and convert the 4 stroke, fail, and be left with nothing.

With a good description on ebay, it might go well with so many single cylinder 4-stroke trails bikes around these days.....