Sportster Internal Throttle

[Powerlifter626]

Hey guys, I am in search of an internal throttle assembly for a 1957 Sportster. I need the complete right side throttle set up and also I was reading an old cycle magazine and saw that the left hand grip was also a twist but this was for advancing the distributor. Now on my buddies sportster he manually advances the distributor before starting by reaching down and turning it but I guess they had it set up with a cable for the left side hand grip. Anyway I need both of these. If anyone has something like this or knows where to find a complete unit, please let me know.
Thank you

-Paul

[Sportster Jerry]

JP Cycles sells those parts.

[mmoore]

medical advice

I would retard the spark so I don't play superman. been there done that, even rode in a ambulance but wont do it again.

[HarleyCreation]

I would retard the spark so I don't play superman. been there done that, even rode in a ambulance but wont do it again.

Was that the time you were launched through grandma's chicken coop roof?

[mmoore]

I'm sure I cleared the coop as I had no splinters but it did happen so fast. I was just checking the plugs after a high speed run(alongside the road) as I was checking the carb out for a friend. turns out he had a fixed mag. A few months later he joined the superman club and then sold the bike. He opted for a new low rider with a button starter. I do have a mag on my 68 IH but I retard the spark EVERY time I even think about starting it.it hurt like heck but you know what? it was funny (now)

[HarleyCreation]

I'm sure I cleared the coop as I had no splinters but it did happen so fast. I was just checking the plugs after a high speed run(alongside the road) as I was checking the carb out for a friend. turns out he had a fixed mag. A few months later he joined the superman club and then sold the bike. He opted for a new low rider with a button starter. I do have a mag on my 68 IH but I retard the spark EVERY time I even think about starting it.it hurt like heck but you know what? it was funny (now)

Did you also opt for the accessory limp?

[mmoore]

yea but it did not last long that was about 25 years ago 7 years ago a fall smashed my knee cap into 17 pieces (another ambulance) had 2 pins put in then a year later had them removed so now you understand if you see me why im a left leg kicker. however this year i think i can use the right as the limp is almost gone.

[billpedalino]

Been there/done that as well. Now, almost 40 years later, my right knee offers a daily reminder. AMCA-correct or not, I installed the 1965 and later advance plate mechanism and left handlebar on my '64 XLCH.

Bill Pedalino

[Coolbreeze]

Who sells the spark advance conversion advance plate? I need one to convert my fixed mag 1960 XLCH into a better running (and starting) machine.

[mmoore]

Im not sure if anybody makes a conversion maybe somebody here might know but you can look at a parts book and see if you can fit a manual advance brackett and use that. It was stock on my 68 xlch

[Chris Haynes]

I believe that Morris Magnetos repops all the XL Mag mounting parts.

[mmoore]

I usally try lonnie at antique cycle supply. he gets a lot of nos stuff that always looked new. he searched for quite a while to find a key and switch for my mag but he came thru so now I dont lug a log chain around. this was a real blessing as my gaurd dog of the last 7 years has gone deaf.

[Coolbreeze]

I bought the conversion pieces from Sporty Specialties and plan on buying the internal parts (and handlebars) from Antique Cycle Supply. I prefer to buy American made parts if I can, and all these parts are made here in the States.