LT80 Oil pump/thumb throttle - ATVConnection.com ATV Enthusiast Community



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Old 05-17-2017, 09:51 AM
Weekend Warrior
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Default LT80 Oil pump/thumb throttle

New member here, had a few scans of the forum and looks like lots of great info and members. We just got an Lt80 and I want to lighten the pressure on the thumb throttle, aside from the pulling the lever spring and lubing up the cable will removing the oil injection pump help too? I read it somewhere that it would but I don't see how it could.
Thanks in advance..
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Old 05-17-2017, 10:52 AM
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Nope...no help at all as the pump is driven of the primary clutch and not via the throttle. What I did was snip a few coils from the carb slide spring...but only a few as it's critical that there is enough spring force to close that slide upon release. That will significantly reduce the throttle pull effort.


Another popular option is a twist throttle conversion...might be worth looking into...
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Old 05-17-2017, 10:59 AM
Weekend Warrior
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Thanks, you confirmed what I was thinking. I'll play around with the slide spring. Cool little bikes. My 7yr old put about an hour on it yesterday and had a pretty sore thumb at the end but loves it. First machine for her
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Old 05-17-2017, 03:12 PM
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Great little machines indeed...
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Old 05-18-2017, 11:31 AM
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We bought a thumb extender and my son loves it! Makes it so much easier to make it through a race without his thumb being sore!
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Old 05-19-2017, 07:08 AM
Extreme Pro Rider
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I put a twist on my daughters machine years ago. One of my biggest mistakes.
Cable routing can make a huge difference.
Man up lil man. hehe
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Old 05-19-2017, 08:39 AM
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Lots of options...cheapest/easiest is to simply cut the carb spring down...
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Old 05-19-2017, 09:39 AM
Weekend Warrior
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Pulled the spring out of the top throttle assembly and re lubed the cable, I think its a bit better. She's gonna be riding for the next three days with me so I'll bring some snips for carb slide as well incase..
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Old 05-19-2017, 11:10 AM
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It will make a huge difference...my son said it was the best mod so far...
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Old 05-19-2017, 03:03 PM
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"my son said it was the best mod so far...At least as far as he could tell just holding it in his hand waiting for the machine to be together"

BAHAHAHAHAHAHAHA
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