I just bought my first bike that wasn't Japanese.  I live in Hawaii with very technical slow trails.  I recently bought a 2001 GasGas 300EC.  It has gobs of torque and power immediately down low and into the midrange.  Then, it seems like there is literally almost no topend.  It's like the engine hits a wall at a certain RPM and peters out.  The compression is great on the bike.  The bike has never had a topend job done though.  It's never been cracked open.  I bought it with low hours.  Do these bikes have a topend.  If so, what do I need to do to get it back.  I've been out of riding for 10 years, so I'm having to relearn everything.  I'm satisfied with the power for what I'm doing, it just doesn't have near the fun factor of the last 9 bikes I owned and they were all 2T's from the 90's.  Any input would be appreciated.  I know nothing about these bikes.

I it has the stock messico pipe then no. If you get Doma or DEP pipe it will increase the power quite well. If you want you can try out this power pack. It does wounder.
http://www.lt-racing.com/( go to products, and then power pack)

Also, a lighter flywheel will get everything moving faster.

MXR said:

The EC300 definately has a top end so it sounds like you may not be jetted correctly or something not quit right. I have two 05 EC300's and a 02 EC200 and all three bikes have plenty of low end (especially the 300's) and rip on the top end. The are the fastest bikes I have ever owned. I have FMF gnarly pipes on my bikes so I am not sure what exhaust you have but you may want to call a company called "Go Fasters "and ask for Steve he can probably steer you in the right direction. Good luck!

www.gofasters.com

GHill

Funny I ended up with this 300 gasgas from this thread after a couple of other owners. It definitely has top end now and runs great. I used it for the first time in a very very long time since I had given this bike to my cousin..and recently got it back.

Here we are yesterday in some rain having fun in some wet technical stuff in central Oahu..

Edited by hawaiidirtrider, 14 April 2012 - 01:43 PM.

Sounds like jetting to me my 2010 has top end.  Like most bikes getting the jetting sorted to what you like is the key.

 john01, on 14 April 2012 - 05:53 PM, said:

Oh it is fine now. It runs awesome all the way through with a nice top end. I guess the original poster of this thread figured it out.

 hawaiidirtrider, on 14 April 2012 - 01:22 PM, said:

Any idea if the Mauna Kea 200 will be held this year?

NC

 NumberCruncher, on 15 April 2012 - 11:20 AM, said:

Yes it is!!!

http://mk200.com/

 hawaiidirtrider, on 15 April 2012 - 12:22 PM, said:

Have you ever ridden the event?  Any idea how tough it is?  It used to be known as the world's toughest race but I think that was before the eco's could shut it down and it was actually 200 miles.  I want to say it is closer to 80 now.  I'll try to contact some of the people listed on the site.  

Thanks for the link!

NC

 NumberCruncher, on 17 April 2012 - 06:39 AM, said:

Sounds like you know some about it Did you ride it before? I did it in 83'? on a 430xc husky. It was harder the first day which is technical single track in the forest.. there's some log crossings etc. I heard the current race has some biiig logs to go over. The second day you go across and go up and down Mauna Kea . You are going up some serious elevation and you can look down below from above the clouds. That's unreal and beautiful especially on top and yur pinning it. It's like your on the moon . It's good to check out the pictures on the website archives and youtube although it doesn't do it justice . Both my parents are from the Big island and I have family so I've ridden to a small extent and am familiar with the island . The race will expose you to things most people that live there have never seen. It's hard to compare in difficulty to me . The big island is a newer island and also called the rock island so thereis a difference in terrain and l'd say more traction overall in comparison . It isn't as slippery as say an wet Oahu hare n hound race would be to me but of course it's also 2 days . I don't know how that comparison will help you though. I don't know what you consider tough and what you ride . ... It's hard enough I guess... not toughest in the world ..no erzberg... I think... Check out some of the vids to get a little idea. I'm pretty sure I would be very tired and happy when i was finished .. I don't think the length of the race is that low too.....but... I guess it's good to check the website for all these types of questions so you get the best answers to your questions . No matter what even though I only did one I will always remember what an awesome race that is and the people that put it on are awesome too.

http://mk200.com/

http://www.mk200.com...hive/index.html


Oops!!!! Sorry !! I forgot where I was posting! I posted the race info also so thought this was in that section instead  of  this thread..

Edited by hawaiidirtrider, 17 April 2012 - 12:23 PM.

 hawaiidirtrider, on 17 April 2012 - 11:45 AM, said:

Thanks for the insight.

I received an email from an organizer and day 1 is 100 miles through the rain forest.  If it is 100 miles of tough riding that is one thing.  If it reaches the point of lifting bikes over logs, repeatedly, then I don't think I'd have much fun. We have some pretty tight trails in the PNW but not quite like Hawaii.

I have never ridden this event but have thought about it for years.  I have already hijacked this thread enough so I'll close by saying I really want to do this in 2012 and am looking at the cost of sending my bike over and will make my mind up in the next several days.  I know I'd have a great time but as a recreational rider, 100 miles on Saturday may do me in.  My record is 130 miles in one day but a lot of that was fire roads.  I'll check out more of the vids and pics.

NC

 NumberCruncher, on 19 April 2012 - 07:47 PM, said:

If you go you wont be sorry... It's not like the logs are constant or anything.  ..just in some areas crossing the road. It might be in some vids .  I wouldn't say it's that bad from what my friends including those living on the big island tell me.  As far as the hijack.. I don't think anyone really cares. This is an old thread and I think everyone knows a gasgas 300 is an awesome bike that has great low end mid range and top end. It does even if anyone out there doesn't know

Edited by hawaiidirtrider, 19 April 2012 - 08:32 PM.