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Post by Matt on Mar 4, 2007 22:24:46 GMT
Does your choke turn off properly? It sounds like there might be too much of something going into the engine, which would explain the sluggish start. I had this with my TZR50, and it was just becuase the choke was slightly on.
Also, whats your spark like?
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Post by ninjanut on Mar 4, 2007 22:55:51 GMT
yeah, have followed advice on choke.
have got one fibre washer on choke which lifts it just enough to cover o ring,bike stalls if ya try and lift choke when warm.spark is good, running ngk b9 plug.plug is black after session but not wet and oily.
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con
'L' Plates
Posts: 26
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Post by con on Mar 5, 2007 1:06:34 GMT
ninja , if it's that bad give scotty a ring as the jet kit doesn't sound as good as it should be ?
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Post by tony811976 on Mar 5, 2007 9:05:32 GMT
silly question but maybe the plug is fouling under high load on acceleration, do you have the rep coil pack or has that been replaced yet?
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con
'L' Plates
Posts: 26
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Post by con on Mar 5, 2007 9:13:18 GMT
i have a genuine coil pack and a genuine pick up fitted £££££, mines ok now the clutch is about bedded in and adjusted up , but it was lumpy when at low revs bedding in the clutch
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Post by tony811976 on Mar 5, 2007 20:19:32 GMT
a little problem i think i need to ad is my gp3 throttle cable was routed wrong in my opinion it was very tight around the frame, when i fired her up i could controll the revs by steering the bike . very wierd. re routing the cable sorted that. a mate of mine also had the same problem on a 911 rep he bought off ebay. aparently he got it home started it up and it took down the drive and smacked into the back of his van smashing the fairing to pieces. i can see it now riderless accelerating faster than a r1 lol
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Post by Matt on Mar 5, 2007 21:27:06 GMT
When i got my minimoto, the throttle slide wasnt attached to the throttle!
How big is your main jet ninja? Is your fuel filter working correctly? If its the standard one i recommend changing it!
Is your fuel tap ok?
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Post by ninjanut on Mar 6, 2007 21:25:09 GMT
Hi,
coil is genuine polini,have changed fuel filter and checked tap.
I did ring scott last week, he said leave needle alone and screw in mixture screw.I did this but only got a change when mixture screw was all the way in.
I might try and borrow another carb to try,or maybe get it on a dyno to check out.
Its only a low rev prob as when on the gas its really quick.
Thanks for all replies.
ps Great site with loads off good info.
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con
'L' Plates
Posts: 26
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Post by con on Mar 7, 2007 10:37:55 GMT
Ninjanut it maybe just because of the state of tune that it's bogging down , once you get the clutch bedded in so it bits just as the powers coming in , i think it will be ok , mine was like that but seems to fuel ok when it's singing ;-)
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Post by ninjanut on Mar 11, 2007 21:40:05 GMT
Had bike on exhaust tester yesterday,showed bike running rich.Was advised to go smaller with pilot jet and lower needle half a groove.Done needle,jet coming this week.
Hopefully this should solve prob.
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Post by tony811976 on Mar 11, 2007 22:32:35 GMT
was that a two stroke compatible co machine?
i was sure a car c.o tester would mess up on a two stroke engine due to oil in the gasses?
am i wrong
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con
'L' Plates
Posts: 26
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Post by con on Mar 12, 2007 21:10:16 GMT
was that a two stroke compatible co machine? i was sure a car c.o tester would mess up on a two stroke engine due to oil in the gasses? am i wrong Tony you are right there a car exhaust analyser can see the oil in the 2 stroke exhaust as unburnt hydrocarbons and says it's rich , but i must admit it does feel rich until it's in the power , just be careful ;-) don't go too mad on size drops |
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Post by ninjanut on Mar 12, 2007 21:41:54 GMT
Bike was tested on a motorcycle dyno by a guy with lots of race bike experience so all should be well.
Had arron soloman test bike out at matchams yesterday,he had bike really flying,said it was just bogging down trying to exit 1st corner after straight so will only go down one jet size.
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