suzuki RM and quad people, need help

[m in sc]

Hey, so i need some sort of igntion/lighting for the lt250r motor for the grom. parts are stupid expensive, and the stock stator looks.. lacking. also, im missing the flywheel.

so, i was wondering, can the RM250 rotor/ignition be used on this motor (mine does not have the elec start) ? because HPI has a unit for the RM250 of that year. (86)  for like 200 bucks.

[thatguy]

EDIT: I looked and the stators are different animals between the two so it's gonna be a crap shoot. Stators are available for the LT and RM but no rotors for either available.

[m in sc]

thats why i want to use an hpi unit. i mean, worst case i guess i can mahine a stator plate to use the hpi, i might have to 'bet' the crank tapers are the same (seems more likely than not)

[thatguy]

Lap the rotor to the crankshaft.

[m in sc]

um, no, you need the interference fit, and i'm not lapping like 1mm or more from the taper, if that were the case id cut a new taper on the rotor  I'll get it, progress is being made.   

[thatguy]

i simply meant should the rotor fit lap it. Not attempt to alter the taper with abrasives. 

[retaRD]

What about RMZ?

[m in sc]

beats me nathan

[retaRD]

Sorry, I meant RMX.

[pdxjim]

It's true.  RMX has a lighting coil etc.

A buddy of mine has a 96'-98'ish RMX i can take a look at if it helps.

[bracket maker]

Hey, so i need some sort of igntion/lighting for the lt250r motor for the grom. parts are stupid expensive, and the stock stator looks.. lacking. also, im missing the flywheel.

so, i was wondering, can the RM250 rotor/ignition be used on this motor (mine does not have the elec start) ? because HPI has a unit for the RM250 of that year. (86)  for like 200 bucks.

fix the stock stator. you have 4 wires coming out of the stator? igniter, cdi, ac, ac. simple rewire to 3 phase then a generic r/r. flywheels are on ebay. if I know what I'm talking about the two ac coils will both be grounded to the stator plate. ungrounding will fix.

[m in sc]

well, the motor changed after 86. not sure what swaps.

[m in sc]

Hey, so i need some sort of igntion/lighting for the lt250r motor for the grom. parts are stupid expensive, and the stock stator looks.. lacking. also, im missing the flywheel.

so, i was wondering, can the RM250 rotor/ignition be used on this motor (mine does not have the elec start) ? because HPI has a unit for the RM250 of that year. (86)  for like 200 bucks.

fix the stock stator. you have 4 wires coming out of the stator? igniter, cdi, ac, ac. simple rewire to 3 phase then a generic r/r. flywheels are on ebay. if I know what I'm talking about the two ac coils will both be grounded to the stator plate. ungrounding will fix.

ben, you are correct. I do have all that, and it is in useable shape. However, trying to avoid using 34 year old windings if i can.  and, i don't have the cdi igniter box (i know i could use a generic one). By the time i get the correct flywheel and box, im more than halfway to a new HPI.
Just weighing the options, i still need to get the motor in the frame, and then actually put the engine together after the adapters are made.

[retaRD]

I don't even bother buying "NOS" windings, I rewind it with brand new magnet wire.
It's an option.   Easy enough with a single post coil.   
I just count the removed turns (per layer as well), measure the gauge and rewind it.
I've done a few ignition source coils that way.

[bracket maker]

I don't even bother buying "NOS" windings, I rewind it with brand new magnet wire.
It's an option.   Easy enough with a single post coil.   
I just count the removed turns (per layer as well), measure the gauge and rewind it.
I've done a few ignition source coils that way.

coils do not need to be rewound ever. what is needed is a full wave solution. unground the 2 coils connect them together and run 3 phase. you will have all the juice you need. done it a dozen times.

you even can just unground one lighting coil and use a scoot r/r. one ungrounded coil will have the same output as 2 grounded coils. I've run this way no issues.

rev box, r/r, flywheel 45$