Pro Motive
#1
Posted 25 April 2015 - 08:47 PM
#2
Posted 26 April 2015 - 07:04 AM
#4
Posted 26 April 2015 - 04:16 PM
#5
Posted 26 April 2015 - 04:23 PM
Attached Files
#6
Posted 27 April 2015 - 03:58 PM
What are you bulding it for? Track or road car?
#7
Posted 27 April 2015 - 09:14 PM
#8
Posted 27 April 2015 - 10:47 PM
#9
Posted 28 April 2015 - 02:28 PM
#10
Posted 29 April 2015 - 11:28 AM
Quick question what year from to did yamaha make the carb version of the r1 engine as seems to be various models knocking about as want the correct one to fit the pro motive frame
Why do you want to have a carb version of the R1?
The only advantage is a little bit less electric and price of the engine but a lot disadvantages compared to the 5pw injection version:
- carb has problems with coating of the pistons (major issue with the carb models, especially the 1999 and 2000 versions)
- gear box is less strong (earlier carb version even weaker) and you stress the gearbox with triple weight of the bike in your mini which is the weakest spot on a bec, was uprated on injection
- less power then injection
- you also need all the electronic gadets like power commander as for injection version (and costs that come with that) but have the additional problem/adjustment/modification with the carb needle.
If you drive it on the street, search here in the forum for the modification with the belt drive instead of a chain, makes a major difference in noise levels. If the major issue for me with promotive's low ground clearance wouldn't exist I would have also got promotive with this belt modification.
Edited by Helldriver, 29 April 2015 - 11:32 AM.
#11
Posted 29 April 2015 - 07:11 PM
Cheers for the advice
#12
Posted 05 May 2015 - 02:12 PM
I find the main difference with injection over a carb`d R1 motor is the superior torque curve. This much improves the way an R1 mini drives on part>full throttle from low to medium RPMs. Plus, no manual choke, and superior fuel consumption. I can get 40mpg from mine on a cruise.
IMHO it is worth the extra effort to go 5PW from the start if possible.
#13
Posted 06 May 2015 - 03:27 AM
#14
Posted 06 May 2015 - 05:17 AM
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