Posts
688
Joined
7/13/2012
Location
Fayetteville, AR
US
Edited Date/Time
5/17/2016 8:50pm
I know this bike doesn't exist, but if you were going to create the closest thing possible to a KTM 350 with a Yamaha which would be a better choice? Bore a 250f and a few mods with reliability in mind, or tone down a 450?
I'm 165bs +30 currently on a 2015 yz250f mx track only. I've always had 250f's and enjoy them because I can ride aggressive without feeling like I'm going to kill myself. I'm sticking with Yamaha because of my relationship with the dealer.
I'm 165bs +30 currently on a 2015 yz250f mx track only. I've always had 250f's and enjoy them because I can ride aggressive without feeling like I'm going to kill myself. I'm sticking with Yamaha because of my relationship with the dealer.
The Shop
But it won't be nearly as reliable as a stock KTM.
Once you gear it properly for the additional power by dropping two teeth on the rear - it's all you could want - with the handling of a 250f but the power needed to be competitive. The same power can be had with 250 mods - but the big bore is cheaper and produces easier to find low end HP.
With a full blown set up using our head, bigger valves, the big bore can easily go past 50 hp. And no need to go much past 270cc.
Of course - using a high quality rod is a must.
the problem with the ktm 350 is the weight is too close to the 450 and its powerband too much like a 250 (ie not enough torque)
Paw Paw
http://silodrome.com/yamaha-rd350lc/
Pit Row
ALWAYS keep those valves adjusted & keep good valve springs and cam chains in it.
Or..... you could just sell the 250, buy a KTM 350 and just spend the money on getting the forks and front end working well, which will be a heap cheaper. Plenty of successful options out there and well documented here. See if you can get a ride on one. You'll find they're much thinner. They are reliable, handle well and I think just the ticket for us old farts who want Goldy Locks type power. But if you love your Yami, call Derek.
The OEM yamaha rods are a real disaster 14-15 - the 16's have been better.
One and the same RPM68
I'm all for supporting a good dealership, but if the KTM 350 is what you really want. It's what you should get.
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