t140v
3rd Gear
Posts: 422
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Post by t140v on Jan 31, 2012 16:48:43 GMT -5
Hi all,
Got my carb back after an overhaul with Jess and had my first run out last saturday, ran ok up to about 3500rpm then crap. Phoned my local bike parts dealer to see if they had some 5mm thread mikuni jets, they had so went to see him Sunday. It turned out the mikuni jets had a bigger head than the ones fitted to the RE5 but opened another box of jets "success" the right size heads but no 95. Took a 97.5 home all of £2.00 a quick exchange out for a try, did 45miles of smooth cruising, no flat spot or hesitation a different bike altogether the best £2.00 I've ever spent.
Stuart.
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Post by mike500 on May 28, 2012 11:42:12 GMT -5
ive just been cleaning my gixxer 750 carbs and noticed the main jet was the same type as the re5 primary main jet but was a 125.so i thought lets see how my re5 runs with a 125 jet in instead over the 90.took bike for a run and no flatspot no hesitation put it in 5th at 2000 rpm and it pulled all the way up the rev range perfect.tomorrow i will give it an even long run and see how it goes and if it goes as well as it did today i will keep jet in when i go to the tt on it next sunday and run it like that over the tt week regards mike
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Post by mike500 on May 29, 2012 11:50:48 GMT -5
been for a 30 mile run on bike today with the 125 jet in.no flat spot no hesitation smoother tickover and running cooler in traffic,even went down as low as 1500rpm in 5th gear and it pulled smoothly all the way up,only other thing i did do was adjust tickover and turn pilot air screw out to 2 turns
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Post by mike500 on Jun 16, 2012 13:26:47 GMT -5
used my re5 for over 600 miles at the tt last week with the 125 jet in it ran perfect but a bit heavier on fuel have now ordered a range of jets going from the 125 reducing by 2.5 at a time i.e next jet will be 122.5 will keep going lower till flatspot comes back then go back up 1 size and will see what mpg i get then ordered my jets from here www.allensperformance.co.uk/mikjets.html at £2.95 plus vat per jet
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Post by riversidogs on Jun 16, 2012 17:51:02 GMT -5
Try to buy fuel from the same vendor if not the same station to prevent fuel variations from altering your test results.
Riversidogs
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Post by CPKID on Jun 29, 2012 15:04:51 GMT -5
Wow!!! Put in a 95 jet today and had great results . It still sputtered a bit . I then put in a 97.5 and it's pretty good . I now have a rideable bike . I will go with that for now . I don't want to make the mixture to rich and create plug fouling I suppose. I was about to give up . After all the work of changing a transmission , and cleaning the carb about 5 times I now have a great running machine . I'll start to polish it now . The gears are a little clunky which worries me , but I'm getting used to that . I might try a different oil blend in the transmission . Regards and thanks to all, CPKID
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Post by CPKID on Jul 5, 2012 21:12:45 GMT -5
Update on my 76 . Ran it this weekend about 70 miles or so . Which is a lot for me . The bike ran great . It really has a different feel to it . I have faith in it as well . Don't feel it will leave me stranded . It does like gasoline to be sure. I'm thinking it gets around 20 MPG . Will do the math next fill up . Can't decide if I should keep engine clear coat on or not . It's not clear anymore , but has an aged look to it . Having fun with it . Rekgards, CPKID
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Post by snowrench on Jul 6, 2012 11:58:15 GMT -5
I've been reading this string with some interest, as my A model runs with the flat spot typically described here, and I quickly determined it was due to leaness, as it improves greatly by running with the choke on. It is also less "cobbly" at speed with the choke on, although above 4000 rpm it is tolerable without the choke. Rolling the throttle on smoothly helps, as whacking it no doubt causes sudden loss of velocity. I was thinking about installing a larger jet, and may still do it (especially if I already have it), but I don't want to make my fuel economy any worse! I live in North Idaho, and some trips involve long spans between gas stations. This bike GUZZLES fuel. I get about 60-70 miles before I hit reserve. I gotta say that the light goes on right about the time I need to hit reserve. Suzuki meant for these things to be touring bikes? So what, about 25 mpg? Holy cow, no wonder they couldn't give these things away..... I'm going on a vintage ride on Sunday, but I'll probably ride a CB so I don't get stranded, as we'll be in the boonies for part of the ride...
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Post by wayne on Jul 6, 2012 17:01:37 GMT -5
Hi Snowrench.........I can't help but say that you might have something else seriously wrong with the carburetion. The bikes are not that thirsty. All of the 6 bikes that are regular runners down here have similar fuel consumption.
My best bike over the last 2,200 miles typically returns around 35 mp USG (42 imp g). It goes as high as 38.7. Ridden hard and believe me, I really mean ridden hard I still managed 29.8 mp USG (35.8 Imp). That run was all between 5 and 7,000 rpm with hard braking and full throttle accelerations out of just about every corner on a very tight twisty, hilly road, about as bad as you could get for fuel economy.
And that bike has high profile tyres which result in only around 4% odometer error.
My other bike returns around 32.5 mp USG (39 imp) but it is 5 hp down on the one above so I'm not surprised.
Riding with other RE5's down here on the same run at the same speed we all refill very similar quantities. There was half a litre difference between two of us once but he was two up and I was solo.
Unfortunately, I can't really come up with a black and white reason why you'd be burning so much juice.
PS I typically hit reserve between 105 and 120 miles. A very bad day would be a bit over 90 miles and like you, the light is an excellent indicator of reserve.
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Post by pieman on Aug 14, 2012 15:15:56 GMT -5
when messing with the jets are you using a standard plug
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Post by mike500 on Aug 14, 2012 15:34:34 GMT -5
i run a standard plug with different jet sizes jets
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