Thumper Club Forum

Club House => Chatter => Topic started by: guest1876 on October 09, 2014, 07:56:09 PM

Title: FT 500 motor
Post by: guest1876 on October 09, 2014, 07:56:09 PM

Depending on how a potential ebay purchase pans out I may own a CB250/500R soon. It has an FT motor installed, most of the e-start junk has been removed but it still has the original L/H engine side cover in place. I'd like to remove it and replace it with non e-start one.
Can anyone tell me what this would involve...is it even possible?

Title: Re: FT 500 motor
Post by: Moto63 on October 10, 2014, 06:58:32 AM

Morning ken w,
Can,t help you out with your problem but I was looking at the ft/rs500/250 hybrid on fleabay. Be interested to hear how you get on. Good luck with ya bidding. 

Title: Re: FT 500 motor
Post by: guest1876 on October 10, 2014, 02:55:24 PM

Watch this space, Moto!

Title: Re: FT 500 motor
Post by: SHimmer45 on October 23, 2014, 07:02:18 PM

i have an RS/XL/FT mogrel which iam currently building i brought it with the motor fitted into the frame and has had the E start stuff removed and a XL cover put in place. at the same time the balancer was also removed.
if its had all the e start removed then you "should" be able to swap the covers.

out of interest the is the RS you have been looking blue? with a down turned pod filter?

Title: Re: FT 500 motor
Post by: guest564 on November 09, 2014, 04:39:54 PM

Quote from: SHimmer45 on October 23, 2014, 07:02:18 PM

at the same time the balancer was also removed.
if its had all the e start removed then you "should" be able to swap the covers.

Has the crank been balanced? removing the stock balancers can lead to a cracked frame.

Title: Re: FT 500 motor
Post by: tevie54 on November 10, 2014, 08:05:29 PM

Why would you remove the balancers? On my CB500RS I once got the balance timing wrong and it would vibrate across the driveway when you revved it while on the sidestand.
Did you win the auction Ken?

Title: Re: FT 500 motor
Post by: guest1876 on November 10, 2014, 08:39:02 PM

The RS I acquired is the one with the downturned pod filter.
I know that an XL/RS cover should fit, but I'm not sure if it will have enough clearance to accomodate the starter ring gear on the FT flywheel? If not I would also need to replace that item too. Can anyone advise if changing a flywheel can create issues with the rest of the electrics? Or are they interchangeable?

The bike was already registered as a 500, even so, I had a  bit of trouble getting insurance. Would have been much easier had the engine change not been notified!

Title: Re: FT 500 motor
Post by: SHimmer45 on November 10, 2014, 09:52:27 PM

i didnt remove the balancer it was brought as an unknown, have had it running and it doesnt vibrate overly or any more than some old thumpers ive come across

Title: Re: FT 500 motor
Post by: tevie54 on November 10, 2014, 10:18:57 PM

You will need to change the flywheel (rotor) and the windings if you want to convert it to kickstart plus the cover of course, then you will need the kickstart side case and the automatic decompression lever and cable, basically an RS 250 bottom end

Title: Re: FT 500 motor
Post by: tevie54 on November 10, 2014, 10:25:49 PM

Carole Nash insured mine without any problems, they called it a modified classic.