Jetting on Malossi 210

[rivierarob]

Hi all,

Just wondering what consensus of opinion was as get conflicting advice when speaking to dealers:

Running 210 Malossi, lightened flywheel, ported but with standard 24 carb. At the moment has Simonini pipe but am about to fit a PM.

The jetting at the moment is 125 main with BE5 atomiser (and the top bit? is 160).

Having trouble starting from hot and bogs down a bit at low revs. I'm thinking it's overjetted at 125. What do you guys reckon? Thinking of trying a 120 but will wait until the PM is fitted I guess.

Cheers

Rob

[mickey movistar]

ive heard from jerome at readspeed jetting any bigger than a 120 is no good
if you contact him he will recomend you get your 24 mm drilled out slightly

he does the job for you not sure of a price but contact him and he will give you a better idea

[joey]

You're going to have a nightmare getting the jetting sorted on a standard 24mm but it can be done with plenty of tweaking.
Your problems are not main jet related, as you've said it's on hot starts and at low revs so the main jet hasn't even come into play!
Have a look at your air filter, is there a hole drilled in the little heart shaped cutout immediately above the main jet stack? If not drill a 3 or 4 mm hole which will improve things slightly.
Your air corrector (the 160 top bit!) should be ok but I think you need to drop a BE3 atomiser in to help with the mid range.
The hot start problem sounds as though it's more to do with your mixture screw, turn it fully in and then back out 2 1/2 turns as a start point and then 1/4 turn at a time until you're happy.
One last thing, the hot starting problem could be plug related, you should be running a B8 minimum on a 210 as it heats up very quickly.
Hope some of this helps mate, but most important is not to drop down at all on your main jet, a 125 is about right, if not a bit small, don't forget they send the kit with a 130 for running in so you should only have to drop to a 128 once it's run in, and then go back up if you do any more to the scoot.

[vespa]

24mm carb if standerd si is a pain to get right and usually carnt get it done right have you thought about a 26mm flatside mukini east to jet right and overall a better carb for the mighty 210

[rivierarob]

Cheers for help guys. Much appreciated.

My main problem is that this is how I bought the scoot. Just prior to me acquiring it, it was running a JL pipe. All the work was apparantly done at Taffspeed so should have been spot on.

Will try the B8ES plug - have tried a 9 and just trying a 7 at the moment.

I've heard about drilling the air filter and was going to try it but was warned off (can't remember by which dealer) about doing it as apparantly can cause problems mid/top range?!

Am going to book in at Readspeed over winter but when I spoke to them they said to get the starting problem sorted first before I do. I've tweaked and changed the mixture screw and at the moment its about 1 and a half turns out.

Once I get the PM fitted (hopefully this week) I'll have another tweak.

Have thought about a flatside but was under the impression they can be even worse to set up..........although I don't think that could be possible!! Worth a thought though.....will see what sort of prices they are.....could be an early Xmas prezzie!!

I need to get my thinking cap on and read up and try and undertstand more about tuning i.e. doing what affects what etc......is that Norrie Kerr book any good and does it cover the PX does anyone know?

Thanks again for your advice & I'll let you know how I get on.

Cheers

Rob

[vespa]

well rob personally i would not touch a pm pipe and who ever told you flat side carbs are hard to set up should not own or work on a scoot tbh the mukini flat side (tmx) is the best carb out on the market for any 2 stroke engine and a doddle to set up!
im not a great lover of lightend flywheels either unles the crank has been balanced to put equal strian on crank or clutch and having read your post again me personally would run no lower than a 26mm carb but preferbly the 28mm


this is only my opinion of course!

[rivierarob]

All opinions gratefully received so no worries on that score.

I've spoken to quite a few dealers/tuners who all have differing opinions on set up & exhausts etc etc......as I'm new to tuned motors (had basically standard set ups for the past 20 odd years)....it's all a bit of a minefield at the moment trying to get me head around the different options......I shan't be giving up though!

At the end of the day if the PM doesn't work as well as I'd hoped for my set up I'll have to take a hit on the price and sell it on......the guy who had it before had a JL (and he didn't rate that) and oddly most places didn't recommend Scorpions or ScootRS stuff.

What exhaust do you reckon is the best for this set up?

I'm gonna keep an eye out for a Mikuni (what are the Keihin carbs like or are they just inferior copies?) and was already thinking of reverting to a standard flywheel.

Thanks again as all constructive comments welcome.

[vespa]

yeah the kliehns are just copy's but very good ones and lots of people like them now the pipe and unfortunatly you may not like this at all are you sitting down?

the jl right handside pipe the rlz2000 is the best pipe for a fully worked 210 engine diablo moto in nuneaton has been doing a lot of research in to the 210 and when i bought my 210 asked his opinion and he said the jl
of course its different stokes for different folks and its what works best for your engine

all i can say is try the pm as you have now bought it and then work around that to the best you can unfortunatly its all trail and error do you want low down grunt that pulls well or a revvy motor where your up and down the gears


there are many tuners in the uk and they all have different ways and ideas but i only tend to listen to diablo moto as he actually runs the set ups him self his number will be in scootering or i can pm it you if you want

[soul43man]

I would reccomend 26 carb and JL right hand pipe

[rivierarob]

Sept 9, 2008 9:30:31 GMT vespa said:

yeah the kliehns are just copy's but very good ones and lots of people like them now the pipe and unfortunatly you may not like this at all are you sitting down?

the jl right handside pipe the rlz2000 is the best pipe for a fully worked 210 engine diablo moto in nuneaton has been doing a lot of research in to the 210 and when i bought my 210 asked his opinion and he said the jl
of course its different stokes for different folks and its what works best for your engine

all i can say is try the pm as you have now bought it and then work around that to the best you can unfortunatly its all trail and error do you want low down grunt that pulls well or a revvy motor where your up and down the gears


there are many tuners in the uk and they all have different ways and ideas but i only tend to listen to diablo moto as he actually runs the set ups him self his number will be in scootering or i can pm it you if you want

Feel free to PM me his number mate. Do you know what carb he recommends as that'll be next on the shopping list?

Thanks again chaps, I'll get there in the end!!

[rivierarob]

Anyone reckon carbs are okay to get 2nd hand as there's a 28mil Mikuni on eBay at the moment :
cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250291143568&ru=http

Cheers agaain

[rivierarob]

.....for now I've gone down to a 122 main jet and changed to a BE3 atomiser. Well pleased with the PM pipe too. Nice piece of kit.

On the poor starting from hot........had to replace the coil as the old one snapped where it bolts on..........left me at the side of the road 2 miles from home on the way back from Woolacombe at the weekend.......no spark at all with the old coil so new coil fitted and seems to be sorted (famous last words)...I wonder if it was the coil on the way out all the time which caused the problem?