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Junior Mint
Junior Mint
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Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Oct 26, 2016 4:33 pm 
Large care package from Japan. Thanks Japan.

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REF: Polini Vs. KN / KN Vs. OEM drive face

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K&Ns arrived

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I can get 100 miles to the gallon on this hog


Last edited by JRolla on Wed Oct 26, 2016 5:00 pm, edited 1 time in total.

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Junior Mint
Junior Mint
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Years on TR

Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Oct 26, 2016 4:34 pm 
Airbox delete

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Broke ANOTHER good screwdriver trying to remove the bastard carb insulator screws

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....but this made it easy, grabbing them by the dick

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Rejetting for intake and exhaust (38/80)

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Removed this bastard thing and cut down the excess length of the opening

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Played around with direct carb fitment of the filter. I know it's not advised but I thought I'd find out for myself. Conclusion: It's not advised.

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I can get 100 miles to the gallon on this hog


Last edited by JRolla on Wed Oct 26, 2016 5:29 pm, edited 1 time in total.

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Junior Mint
Junior Mint
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Years on TR

Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Oct 26, 2016 4:38 pm 
I decided against keeping a lot of the stuff from Japan, got rid of the variator, exhaust (it sounded nice but was too loud) and windshield. Back to the stock exhaust. I also put the stock front shocks back on (MNNTHBX springs still installed). I like the KN shocks but would prefer black. Might put them back on if they don't sell.

Pre-filter and a fuel mixture screw tool pieced together from parts from my mini socket set. You can pretty easily adjust it in situ with the stock engine mount. Socket extension > angled coupler > socket to bit converter > D shaped bit.

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Intake runner experimenting

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Shortened the runner....
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I can get 100 miles to the gallon on this hog


Last edited by JRolla on Wed Oct 26, 2016 5:31 pm, edited 1 time in total.

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Junior Mint
Junior Mint
User avatar
Years on TR

Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Oct 26, 2016 4:42 pm 
Ladybug larvae hitching a ride

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2.5K - New spark plug (as well as the usual oil changes)

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I can get 100 miles to the gallon on this hog


Last edited by JRolla on Wed Oct 26, 2016 5:04 pm, edited 1 time in total.

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Junior Mint
Junior Mint
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Years on TR

Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Oct 26, 2016 4:57 pm 
I was having trouble getting the performance good after rejetting for the intake with stock exhaust. The revs were noticeably lower during acceleration, around 7300. I checked thoroughly for air leaks at the intake, carb insulator and exhaust and all looked good. A tiny sliver of rubber had chipped off the inside of the insulator but I have since put a brand new one on there and it made no difference.

I tried two different new exhaust gaskets just in case. Blasted the carb with carb cleaner. The variator, weights and belt still had low miles, there was no excess dust, binding or noticeable wear anywhere in the transmission. Tried a new Gates Kevlar belt, now broken in. Actually lowered revs further compared to the Polini Kevlar belt.

Tried putting the intake and jetting back to stock. It still felt more sluggish than before, struggled to hit 40 (used to hit 43-44 with this set up) and the revs were worse still, around 1200 rpm lower than before during acceleration up to ~30mph. Checked valve clearance - perfectly in spec. K&N intake is back as it's at least a slight improvement, jetting is 38/78. Top speed 41ish.

Obviously I did something along the way but I can't work out what it was by backtracking. It's riding OK, just a bit too sluggish. I could raise the revs by throwing on lighter sliders but I don't want to ignore a potential problem.

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I can get 100 miles to the gallon on this hog


Last edited by JRolla on Thu Dec 15, 2016 4:19 pm, edited 1 time in total.

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Junior Mint
Junior Mint
User avatar
Years on TR

Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Oct 26, 2016 5:05 pm 
Oh and I put my old Spokey Dokeys on the Strowler

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I can get 100 miles to the gallon on this hog


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Shot Caller
Shot Caller
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Years on TRYears on TRYears on TR

Posts: 1642
Location: Hillsboro OR
Gender: Dude
The way it should be Parking lot mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Oct 26, 2016 6:11 pm 
^ love it

keep in mind that a 4" runner is good for mid-range and a 8" runner is good for top end, heads up. Too bad you didn't like the exhaust, I love it- loud helps keep you safe. Also a fan of the windshield :lol: you'll love it once you break 45

http://totalruckus.com/phpBB3/viewtopic.php?f=11&t=93881

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Junior Mint
Junior Mint
User avatar
Years on TR

Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Fri Oct 28, 2016 9:42 am 
trueadrn wrote:
keep in mind that a 4" runner is good for mid-range and a 8" runner is good for top end, heads up. Too bad you didn't like the exhaust, I love it- loud helps keep you safe. Also a fan of the windshield :lol: you'll love it once you break 45

Thanks for the link :highfive:

Don't get me wrong, I loved the exhaust. It sounded great (without the silencer), looked nice and pulled strong. It was just so loud and I was leaving for work around 5am including Saturdays, just couldn't keep it and be "that guy". I also like to go on long trips on the bike and that sound would just rattle my brain in my skull. Ironically I'm unemployed now and couldn't justify buying another one even if I wanted to!

I shortened the runner after reading ConElite's and oldfart's comments about their success doing that. When I put everything back to stock I confirmed that there is an issue somewhere else that I have yet to find. The thought of breaking 45 on this bike feels like it's a million miles away at the moment

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I can get 100 miles to the gallon on this hog


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Ride Game Participant
Ride Game Participant
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Years on TRYears on TR

Posts: 6382
Location: NORTH SHORE, HAOLEWOOD
Gender: Dude
The way it should be Bathroom mechanic
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 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Wed Mar 15, 2017 9:08 pm 
How hangs your lil jimmy?
:banascoot

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my left nuts


Jedi wrote:
pics of wife? :meh:


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Junior Mint
Junior Mint
User avatar
Years on TR

Posts: 210
Location: Smog City, CA
Gender: Dude
The way it should be Living room mechanic
Offline
 Post subject: Re: Lil "Bastard" Jimmy
PostPosted: Fri Mar 17, 2017 9:19 am 
Tanuki wrote:
How hangs your lil jimmy?

I... corrected it, sir.

And when my wife came down and asked what I was doing to my bike, I... corrected her, too.




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Seriously though, bike's been running great. Motor and trans have been completely stock except I'm running Dr. Pulleys instead of the stock weights as they're flat. Not really sure what happened but after a lot of tinkering around things seem to be running smooth and sweet. I think power is all there (I would need new stock rollers and belt to know for sure). As it happens I just picked up another (new) KN variator and threw it in last night with 6g sliders and a Gates belt. Will see how it goes today.

I have a spare carb to play with. Trying to learn about porting/polishing it along with the manifold and weighing up whether it's worth doing (at this point I have literally just started to learn about it). Anyone who has any insight, please feel free to let me know your thoughts on the subject.

No real update pics worth posting except some speedo ones that I'll do soon.

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