CR250 carby on the CR500 motor
- asteroid500
- Posts: 1047
- Joined: January 5th, 2009, 1:29 am
- Location: Australia Melbourne
CR250 carby on the CR500 motor
can we run the 250 carby on the 500 motor.
im hoping to do so and maybe a re-jet.
any thoughts people.
im hoping to do so and maybe a re-jet.
any thoughts people.
"not speeding officer".....qualifying
CR250 97
CR500 AF 99 (in progress)
CR500 AF CR G-4
CR500 1985 true legend
RGV250 96 X2
GSXR600 07 TRACK BIKE
VH Commadore cup car (race)
CR250 97
CR500 AF 99 (in progress)
CR500 AF CR G-4
CR500 1985 true legend
RGV250 96 X2
GSXR600 07 TRACK BIKE
VH Commadore cup car (race)
- asteroid500
- Posts: 1047
- Joined: January 5th, 2009, 1:29 am
- Location: Australia Melbourne
Re: CR250 carby on the CR500 motor
asteroid500 wrote:can we run the 250 carby on the 500 motor.
im hoping to do so and maybe a re-jet.
any thoughts people.
If you are going to use the PJ off of the CR250 you just need to use a 38mm and set your float level the same as the 500, use the right jets, needle, slide and idle settings to suit the engine you have.
You are now good to go.
I am told they are the exact same casting.
Jack Schitt
DIE FIRST, worry about it later!
DON'T talk about it, Just DO IT!
When in doubt, GO FLAT OUT!
2001 CR500R1 - SOLD
2007 CR250R7 - SOLD
Wife and Daughter - Left Aug 17 - 2010
Jack Schitt - ??????????????
DIE FIRST, worry about it later!
DON'T talk about it, Just DO IT!
When in doubt, GO FLAT OUT!
2001 CR500R1 - SOLD
2007 CR250R7 - SOLD
Wife and Daughter - Left Aug 17 - 2010
Jack Schitt - ??????????????
Re: CR250 carby on the CR500 motor
hi im using the 38 mikuni tps 250 carb they used on the last of the 2stroke honda 250 and i even had to lean it out a little and the bike is perfect it idiles no bogging and revs out fully i used it with all the wiring connected to the 250 ignition its perfectasteroid500 wrote:can we run the 250 carby on the 500 motor.
im hoping to do so and maybe a re-jet.
any thoughts people.
Craigf40,
That's interesting!
With nearly everything written about the later model CR250s with the Mikuni's, one of the main things you'd see was people/ performance tuners hoiking the Mikuni for PWK Keihins,then claiming most of their erratic jetting and plug fouling problems were gone.
As you've had no problems (and with the whole 250 ignition set up with the TPS , which I'd think would be a great thing ,by they way) , I guess it was a combination of a whole group of things that made the 250s a pain in the arse.
So, very interesting results for you. I've a mate with a stationary 06/07 250 who's trying to find a 500 engine, which I'll then do a conversion on. I might snaffle his carb and ignition for a while later in the year. Leaning out is common with open classers/ bigger engines, modified engines, as the 'signal 'delivered to the carb is so much stronger - in simple terms, the bigger engine sucks so much harder, more fuel is drawn through the jets.
That's interesting!
With nearly everything written about the later model CR250s with the Mikuni's, one of the main things you'd see was people/ performance tuners hoiking the Mikuni for PWK Keihins,then claiming most of their erratic jetting and plug fouling problems were gone.
As you've had no problems (and with the whole 250 ignition set up with the TPS , which I'd think would be a great thing ,by they way) , I guess it was a combination of a whole group of things that made the 250s a pain in the arse.
So, very interesting results for you. I've a mate with a stationary 06/07 250 who's trying to find a 500 engine, which I'll then do a conversion on. I might snaffle his carb and ignition for a while later in the year. Leaning out is common with open classers/ bigger engines, modified engines, as the 'signal 'delivered to the carb is so much stronger - in simple terms, the bigger engine sucks so much harder, more fuel is drawn through the jets.
- asteroid500
- Posts: 1047
- Joined: January 5th, 2009, 1:29 am
- Location: Australia Melbourne
I cannt sayyy for sure its all systems go...BUT,
Danny and Mick both ran or run this ingnition at apoint of time on there G-1's with very good results and i hold there opinions very highly because they back there shit up with seat of the pants POV.
mine aint running yet but when it is you'll all know.
Danny and Mick both ran or run this ingnition at apoint of time on there G-1's with very good results and i hold there opinions very highly because they back there shit up with seat of the pants POV.
mine aint running yet but when it is you'll all know.
"not speeding officer".....qualifying
CR250 97
CR500 AF 99 (in progress)
CR500 AF CR G-4
CR500 1985 true legend
RGV250 96 X2
GSXR600 07 TRACK BIKE
VH Commadore cup car (race)
CR250 97
CR500 AF 99 (in progress)
CR500 AF CR G-4
CR500 1985 true legend
RGV250 96 X2
GSXR600 07 TRACK BIKE
VH Commadore cup car (race)