Rg400

[cobby]

Great thread.

Loving the RG.

[stusco]

Fitted my new brakes ,more bleeding required a bit spongy for me

[mouse]

That looks great, did you get the calipers and adapters from 'Bike Torque'?

Mouse

[stusco]

I got the adapters from 17again and got them anodised i got the brakes from caprimoto in italy .Don’t  get a rcs master cylinder they dont fit they hit the fairing and the clocks ive had to make new mirror brackets that spread the fairing enough too get full lock hopefully it passes an mot

[mouse]

Feb 26, 2022 7:58:48 GMT 1 stusco said:

I got the adapters from 17again and got them anodised i got the brakes from caprimoto in italy .Don’t  get a rcs master cylinder they dont fit they hit the fairing and the clocks ive had to make new mirror brackets that spread the fairing enough too get full lock hopefully it passes an mot

Thank you, shame about the m/c, hope you get it sorted.

Mouse

[stusco]

Out for a run on my gamma today so it still doesn’t run right at low revs infact it has a flat spot from 2000 to 2800 and its dead you have to slip the clutch ,everywhere else its spot on and goes like a scalded cat ,unfortunately 2 to 2.8 is town /traffic driving it was a nightmare today stuck behind a bus on a steep hill ,the temperature gauge went to 3/4 just below the red,what do you think ? my mate thinks it needs smaller pilots,he says its not the airscrew as its ok upto 2000.

[midlifecrisisrd]

What is it doing between 2000 and 2800?

Usually if pilot is too small it bogs with the carbs droning. Won't take anything other than small throttle openings

Rich and it will be a wall like when you leave the choke on or machine gunning

Take the air filters out and see if it gets better or worse

Steve

[stusco]

No throttle movement makes any difference you just have to wait or slip the clutch ill pop the filter off tomorrow

[500RG]

www.lancegamma.com/techDocs/tech-carbSync.html

Not sure if this may help you ?

[stusco]

I new i had read that somewhere,cheers
Saying that it idles fine its only pulling away or crawling in traffic

[500RG]

I’m sure there is another article by Lance on setting carbs up - but I just can’t seem to find it at the moment.

[500RG]

I’m not sure if this is it ? Sections of it may be the same as the earlier link.

edj.net/2stroke/rg/RG500CarbBalancingComplete.doc

[500RG]

These bikes are never great at the bottom end and even worse with any tuning, carb bore or disc mods.

[stusco]

Well im f**ked as ive got all of that😬

[500RG]

Me too !

[17again]

you know my rg250 is kinda like that pulling, you have to rev it.

i put it down to 28mm carbs for 125cc was to big a air movement.

[stusco]

Okay out today I’ve tried the airscrews no difference 😡its not as bad when its cold but when its warmed up if you get caught in the flat spot it just drones and cuts out,if im quick enough and pull the choke it pulls away,could this be floats causing fuel starvation as the pilot is the highest jet and the choke is at the bottom of the bowl?

[midlifecrisisrd]

Sounds like it's lean at the bottom end

Go up one or 2 on pilot size

Steve

[stusco]

Dave had bigger pilots in it but Dent has kept them it has 25’s fitted i think i have 30’s ill try them tomorrow,not ideal when its just back from getting a dyno set up

[stusco]

Just checked the float height and its 23mm so that means it will have less fuel in the bowl?
But it has high flow ceramic ball fuel valves do these have a different float height?
I set them to 17mm when I fitted them but they would leak on the side stand (the bike does lean over quit a lot)

[stusco]

Reset all the carbs kept the 25 pilots as I found one choked (strange one choked pilot can stop a four cylinder) it still has the flat spot but can be driven through and avoided so alls good ,gave it some stick in a couple of gears today 😁👍now that’s what ive been looking for,starts to pull hard at 6 then really pulls at 8 when the pv closes ,i just need to put the fairing back on and roll on summer

[stusco]

Update: Ive purchased a performance fabrications adjustable pickup after checking the timing it was 10 degree at tickover and 23 at half throttle its now 14 and 26 its running much better now and has really reduced the low down flat spot ,im running an ignitech now junked the zeel, its all been adjusted mechanically and not by the igi when i plug in the igi it says i have reverse polarity on the pickup or something like that I will take a screenshot next time i check