Mugello 200

[servetaeire]

Mate has Mugello 200 with a prob
30 mm delly
Av 264 tried a 266 made it worse
X7 2nd clip
300 inlet
40 slide
OPEN MOUTH
Bgm v 4
Anthony tambs a.c. stator and cdi
No idea what box is in it but There was a ts1 on it that blew a hole in the piston
New mezz crank and bearings seal fitted
The prob is bogs down in third and doesntv like hills so I reckon it's the gearing any solutions or ideas

[rosscla]

You need to find out what the box and sprockets are before you'll get any reasonable answers.

[servetaeire]

right stripped it down its got sx 200 box on 46 x15 sprockets any body
help out with a gearing solution

[mick1]

That should give a 4.7 final drive, which should be ok for that set up.......stuck rings may be an issue, maybe try a compression test.

Whats the timing ? could be too far retarded......just a thought

[rosscla]

Ok so the gearing for Standard SX is 4.82 which should be OK with that kit.

Usually gearing issues are only apparent in top. Through 1st / 2nd / 3rd it should pull fine, there should be enough power to pull those ratios regardless.

When you say it's bogging in third is this on the flat? Does it pull a bit then bog or just not pull at all?

Does it pull Ok in 1st and 2nd?

Does it rev out cleanly on the stand?

What other jets are fitted - pilot / main / float needle?

[servetaeire]

he says that its fine 1, 2, 3, but hills and inclines it struggles i never ridden it but have been beside him and can see it struggling in top i strobed it with internal and and anthony tambs
external pick ups its the same in both

[rosscla]

It's probably not timing or carburation

If it's just in top then the box is probably too tall.

Drop the front cog to a 14 or look for a box that's closer to 5 or 5.2.

If it's not too impolite is he a big fella?

I'm 16 stone and my RT can struggle a bit up hills if I've not carried some speed into them and it's on SX gears, on the flat it will pull from 30 in top.

[servetaeire]

No he's not bout 6ft 13 stone I have Indian gp 200 with 19x47 in my gori sport bgm v4 with 28mm delly im bout same weight mine goes like a bullet in all gears

[Warkton Tornado No.1]

Presumably the Dell'Orto fitted is the PH range.

Personally, I don't like them, but working with them has meant I have learnt a thing or two, & one of the common mistakes is that the metal plate that fits between the slide & the slide spring is fitted wrongly.

The needle & it's circlip need to be fitted BELOW that plate. Otherwise, the needle will not be returned with the slide & choke the engine, very much like what your mate is experiencing.....

[rosscla]

If you're on 19/47 with the late Indian GP box your final ratio is about 4.94 but it's a different kit so you might expect it to perform a bit differently.