EC 250 engine mods

[Cruiser]

Originally Posted by DLS

Thanks for all the replys......however! RB designs cannot do head mods on off centered plug type heads. The bike I'm wanting to do is a 98 EC250. Anyone have experience with others?

The 98 is off center? I have my 97 and its been so long since I put a plug in I cant remember.. can a newer head be swapped out? I wanted to do this a while ago as the 97 has a tall coolant fitting on the head.. and this stopped me from running a fuel tank from a newer bike.

[jostby]

Weren't the older engine about that time period manufactured by TM? That could be why the off-center plug. When did GG start installing their own engine?

[GMP]

CDI, head mods, and VForce reed block from the newer bikes will make a big difference.

[AZRickD]

What's your impression of the VForceIII reeds versus the stock reeds. What might I expect performance-wise should I make the swap (in my 2005 DE250)?

[GMP]

Its hard to quantify on two different bikes. My '07 runs very hard stock, where my '03 was somewhat of a dog off the bottom. The VF2 in low tension is biased toward this low end improvement, but mine retained good top end as well. The down side is reed life, after every season I found the edges frayed and chipped slightly. It was worth it in the '03 though. My '07 runs so good I'm not touching it. I think Kent A actually tested the VF2 vs. VF3 in the same '05 or '06 300, and found that the VF2 did give better low end. If you have an issue with soft low end power and can't jet it out or rectify it otherwise, give the VF2 a try if you can find one as they are out of production and replaced by the VF3. You might want to ask Mototassinari if and for how long replacement reeds will be available however, as you will need them.