Fired up my FDO 493

[norcalatver]

I finally got to fire up my FDO 493 motor tonight. It runs awesome!! Rode it up and down some small trails by my buddies house for a couple of minutes just to try it out. I'll be putting alot of seat time on it next weekend at Pismo. Thanks Mike!! It was well worth the wait!!
Just as a side note, the motor absolutely would not fire up with my White Bros rev box. After installing my stock box it fired up immediately. Anyone know of a box that works with built motors? one that allows the motor to start? Thanks

[shaneb]

That is great !!!

[abcracing]

hey dave i'm glad your happy with your motor.it just sux the shipping was messed up.there is an aftermarket box out that will alow you to start your bike wheather its warm or cold out. GT THUNDER makes them you can contact them at 1-330-674-7122 or call mike we sell them at the shop. i'll let him know your happy with the motor. LATER BILL

[Martin Blair]

hety whts fdos contact # and do they sell 414 426 its?

[abcracing]

FDO'S #is 740-967-1078 you should call in the evenings and talk to mike.he is the one who actually does the engine building. mike has just about every engine kit that u can come up with.call anytime after 6 in the evening ohio time. later BILL

[Colby@C&DRacing]

Put a full charge on the batt. my 440 would not fire up with a sparks box unless it had a good charge in the batt.

[shaneb]

the dyna box works great but it is more expensive ....

sparks = White Bros = xr250

They all have the same problem


Shane

[DESDAK4]

I was told that the Hetrick racing box works hot or cold also.

Jay
USAF
AMMO

[Texan32]

what is FDO's web site?

[abcracing]

we don't have a web site up and running yet.(in the process of getting everything)you can give us a call at 740-967-1078 if your looking to have an engine built mike is the guy you need to talk to, or if your looking for parts ask for bill(thats me) i'm there during the afternoon and mike gets there around 6 in the evening thats ohio time. LATER BILL

[F-16Guy]

Originally posted by norcalatver
Just as a side note, the motor absolutely would not fire up with my White Bros rev box. After installing my stock box it fired up immediately. Anyone know of a box that works with built motors? one that allows the motor to start? Thanks
The White Bros. box is an XR250 box. It has an anti-kickback circuit that won't allow spark unless the engine is cranked above a certain rpm. With your 493 kit, the starter probably won't turn it over fast enough. The anti-kickback circuit is so you don't get bitten by the kickstarter on the XR250. Have your stock box modified if you think you need the extra R's. :cool:

[honda350r]

I wil bet if you run the ground cable from the battery to one of the rear starter mounting bolts it will fire everytime! You lose power going though the sub frame !! Try it !

[norcalatver]

Thanks for all the information. I'm still not sure what I'm going to do. Has anyone seen or have Dyno proof that an after market box produces more power? the only info I could in writing after doing a search said there is no more power after 7,000 rpm. Thanks again. Dave

[JD400exrider]

I have read the same that no more power after the 7000 rpm range. That is on a stock motor with a stock carb. The FCR produces more power alone after the 7000 mark. With your 493 motor and the fcr your running i am sure you would benifit with a box. I would not put a box on that has no limiter on it. Ride it first dave and see if you feel you even need it. You don't want to send the rod through the side case AGAIN. ;) :p

[shaneb]

the 493 revs so fast that it will hit the stock rev limit very quickly ...


I have my dyna box set to 10500

Shane

[shaneb]

I hit my rev limiter this weekend when I missed a shift I was glad I had it !!!