lew Posted November 14, 2009 Report Share Posted November 14, 2009 Hi I know this topic has been discussed recently, so please pardon me as I'm not a big forum poster. I am selling my Repsol 4rt and replacing it with a Beta Evo, I have ridden Steve Saunders new 250 and his 200 and like them both, so much as I have taken the plunge and ordered a 200. My real concern is I have noticed that the 200 has a mikuni carb instead of the keihin, is this ok or does the bike need the other? I can't wait to get the new bike but while I'm waiting my brain starts ticking and I'm wondering should I have ordered the 250. Regards Simon Quote Link to comment Share on other sites More sharing options...
betabonkers Posted November 14, 2009 Report Share Posted November 14, 2009 Ive got to be honest i seen one up a b merthyr and i wouldnt be happy going back to a mikuni. Quote Link to comment Share on other sites More sharing options...
enrico Posted November 14, 2009 Report Share Posted November 14, 2009 BetaBonkers - why do you feel that? I have had several Beta's (Rev3's and now an Evo) and have to say that a properly set up Mikuni gives no problems or cause for alarm. Lew - if you felt happy on the 200 then stick with that. I love the 200 and think it a vastly underrated machine. It depends on what level you ride and personal preference at the end of the day, but don't feel 'intimidated' into buying a 250 for the sake of it! Enjoy whichever you chose - they will both be lighter than the Mont Quote Link to comment Share on other sites More sharing options...
the addict Posted November 14, 2009 Report Share Posted November 14, 2009 Jeez, can't beleive I'm about to defend the Mikuni I had a good go on a Evo 200 a few weeks ago, it carburated perfectly I thought. I have found the keihin a tad temperamental in the past, and very sensitive to the weather which I never found with the Mikuni Quote Link to comment Share on other sites More sharing options...
boorad Posted November 14, 2009 Report Share Posted November 14, 2009 i was told they kept mikiuni on the 200 cos it gives a smoother feel to the motor. the evo 200 still feels livelier than the rev3 200 but i think that is due to the exhust design Quote Link to comment Share on other sites More sharing options...
outlaw dave Posted November 14, 2009 Report Share Posted November 14, 2009 The Mikuni is a 26mm the Keihin a 28mm - The Evo 200 works fantastic right out of the box - as mentioned above, a very much under-rated bike, and I ride 'em all. Quote Link to comment Share on other sites More sharing options...
lew Posted November 14, 2009 Author Report Share Posted November 14, 2009 Hi Thanks for the info, you've just given me the reassurance I needed, 200 it is. Cheers Simon Quote Link to comment Share on other sites More sharing options...
garyc Posted November 15, 2009 Report Share Posted November 15, 2009 I think the keihins are temperamental because of the 28mm diameter throat. The bigger throat means the air speed is slower for the same volumetric flow rate. Carbs need the air to speed up at the throat to create the pressure difference needed to draw the fuel up through the jets. the bigger throat causes a lower pressure difference, which the jets are adjusted set for, but it means it's more sensitive. The 200 having a lower capacity draws in less air than the bigger bikes, which I reckon is why they've used a smaller carb. It could have been a keihin if they made a 26mm version. I think a lot of riders would ride better on a 200, it's only the top experts that dare overgrip the throttle to make sure they're holding it absolutely flat out! Quote Link to comment Share on other sites More sharing options...
betabonkers Posted November 15, 2009 Report Share Posted November 15, 2009 BetaBonkers - why do you feel that? I have had several Beta's (Rev3's and now an Evo) and have to say that a properly set up Mikuni gives no problems or cause for alarm.Lew - if you felt happy on the 200 then stick with that. I love the 200 and think it a vastly underrated machine. It depends on what level you ride and personal preference at the end of the day, but don't feel 'intimidated' into buying a 250 for the sake of it! Enjoy whichever you chose - they will both be lighter than the Mont Im on my ninth beta now and just think the keihn is better, i found with the mikuni i had to take it off every week to clean. Quote Link to comment Share on other sites More sharing options...
benz19 Posted November 17, 2009 Report Share Posted November 17, 2009 Jeez, can't beleive I'm about to defend the Mikuni I had a good go on a Evo 200 a few weeks ago, it carburated perfectly I thought. I have found the keihin a tad temperamental in the past, and very sensitive to the weather which I never found with the Mikuni Hi Addict! May i ask what you thought of the Evo 200??? Ill be at Earl shilton this week and will be seeing if anyone has one as im curious?? Benz Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.