big dave Posted February 9, 2006 Report Share Posted February 9, 2006 am i right in thinking that the standard throttle on a 4rt is slow action throttle? if so has anyone tried a fast one, and did it feel any different? Quote Link to comment Share on other sites More sharing options...
how61 Posted February 9, 2006 Report Share Posted February 9, 2006 Hi, we run 2 4rt`s both with the twist grips changed to the fast action type. They run superbly, instant power and excellent grip, regards Howard Quote Link to comment Share on other sites More sharing options...
masso Posted February 10, 2006 Report Share Posted February 10, 2006 first of all ...howard, where did you get the fast actions and what are they called?? second, I 've installed a throttle from a 315 ...I like it, it does seem faster action, but was not sold to me as such.......maybe some monresa dealers out there know the difference ...........................masso Quote Link to comment Share on other sites More sharing options...
manz Posted February 10, 2006 Report Share Posted February 10, 2006 Domino throttles with black tube under the grip is slow action. White tube is fast action. Doesnt cost much.. Quote Link to comment Share on other sites More sharing options...
how61 Posted February 10, 2006 Report Share Posted February 10, 2006 Hi, yes as Manz has said the popular ones are made by `Domino` and are the ones that we use, they usually come as a kit including a set of bar grips and retail around Quote Link to comment Share on other sites More sharing options...
donmurray Posted February 11, 2006 Report Share Posted February 11, 2006 I have an aluminum Domino on a 315 and I guess it's a slow one. Total rotation is about 1/3 turn. I guess slow because I can't see how the spool part where the cable winds could be any smaller in dia. Quote Link to comment Share on other sites More sharing options...
barcota Posted February 11, 2006 Report Share Posted February 11, 2006 Aluminum tubes are fast like the white ones. Quote Link to comment Share on other sites More sharing options...
donmurray Posted February 11, 2006 Report Share Posted February 11, 2006 Aluminum tubes are fast like the white ones. <{POST_SNAPBACK}> I don't understand how it could slower? It looks like the spool diameter determines the cable take up rate, and on my aluminum tube the cable nipple socket is about 2mm from the tube and the tube is pretty thin. To make the spool part diameter less, the diameter of the bar and the throttle tube would have to be reduced. What am I missing? Quote Link to comment Share on other sites More sharing options...
barcota Posted February 12, 2006 Report Share Posted February 12, 2006 On a fast action (white and/or aluminum) throttle the spool diameter is larger than the slow action ones. The larger diameter makes it possible to move more cable faster with less rotation of the tube. Quote Link to comment Share on other sites More sharing options...
masso Posted February 12, 2006 Report Share Posted February 12, 2006 you can get the same kind of action with a 44 tooth on the rear.............................masso Quote Link to comment Share on other sites More sharing options...
barcota Posted February 12, 2006 Report Share Posted February 12, 2006 The ideal setup for the 4rt is to use the fast throttle and either a 44 or 46 tooth rear sprocket. Quote Link to comment Share on other sites More sharing options...
perce Posted February 14, 2006 Report Share Posted February 14, 2006 It appears you're trying to take the 'edge' off a slightly headstrong machine by gearing it down. Had you considered that the bike is already low geared? Check out the ratios in comparison to say a Gas Gas Pro. Best bet to slow the thing down is fit a programmable ECU & have it set on a softer setting. More expensive than an outsized sprocket but does the job properly, not just a workaround. Quote Link to comment Share on other sites More sharing options...
gizza5 Posted February 14, 2006 Report Share Posted February 14, 2006 (edited) On a fast action (white and/or aluminum) throttle the spool diameter is larger than the slow action ones. I have a 'SLOW' action 'ALUMINIUM' throttle, had it on my Beta, and now on my 4RT, and definately slow action It is good to have the discussion of what's the best set up etc. etc. But everyone is different, what works for one person may not work for another and I am going through the process of testing all possibilities. I have tried restrictors in and out, every combination, I have tried a bike with the programmable ECU, tried a bike with the titanium front pipe, different gearing, all are different and I suppose that is what is good about the 4RT, so many different bike set up over a 2 stroke. You will eventually find the set up that works for you, not what works for eveyone else Happy Testing Edited February 14, 2006 by GIZZA5 Quote Link to comment Share on other sites More sharing options...
monty-python Posted February 14, 2006 Report Share Posted February 14, 2006 Quote: Best bet to slow the thing down is fit a programmable ECU & have it set on a softer setting. More expensive than an outsized sprocket but does the job properly, not just a workaround. You tried this then Perce? Quote Link to comment Share on other sites More sharing options...
perce Posted February 14, 2006 Report Share Posted February 14, 2006 I half fancied a 4rt last year but hated how the clutch worked & wasn't to keen on the fact that the thing was trying to cart me along half a yard quicker than I wanted. I also had a problem that it kept pumping my arms up in next to no time at all. Anyway I tried an 06 bike just before Christmas, it had the 315 clutch master cylinder & a different handlebar set up. I was well impressed with it although it still was trying to run away with me a bit. I bought one & on the advice of a friend made sure it had the programmeable ecu on it which is set on a softer setting. It's certainly more laid back & suits me just fine. I've also got 5 1/2 inch renthals & Hebo footrests on it. Trying to work out what to do with the footrest hangers now as the stock item seems very soft & bendable. I've bought the bike specifically to do ride 2 trials this year, ssdt & scott. Quote Link to comment Share on other sites More sharing options...
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