1986 black Spree project

[Wheelman-111]

Greetings:

Quoth Mystic:

I also noticed I had stripped the threads outta the carb where it bolts on to the manifold

This virtually guarantees that you were running with a vauum leak, regardless of the loose manifold bolt issue.

The easiest Carb fix is Bigger Bolts. You can run a 1/4" x 20 TPI tap right into the carb threads without pre-drilling. You will need to drill out the insulator and the manifold to 17/64ths for the 1/4" SAE bolts to fit. Go easy on the Wheaties when you torque these bolts down in the future. You only need to compress the o-rings. A 1.5-inch for the near-side and a 2-incher for the far side IIRC. One or Both may need to be trimmed so they don't puncture the carb bowl.

Faulty mechanical skills tend to be repeated, so the loose manifold bolt might be due to stripped threads, too. This one may not be as easy to fix. M6 Heli-Coils might be an option.

[Mystic]

Thanks for the tip wheelman, not for certain that I will have to even rethread luckily I only stripped out the end, the hole still has about half the thread so it still bolts down tight. I just now got back from a 5 mile drive She tops out at about 33 mphs ALSO I had to change the oil, apparently the shop I bought it from had poured regular oil into the tank, it was fouling my plug and causing it to smoke really bad I have never used the 2 stroke oil from honda so I didnt know if it was supposed to be blue or not. I put 2 stroke oil in and still fouled my plug till I got all of it burned out now running without a problem. I cut up an old mattress foam and soaked in oil for the breather until I can order the right one. May have to get a throttle cable this one is pretty stretched and I have to set the carb just right of course but I am extremely happy about getting her on the road. She runs good for 7000 miles and I only paid 50 bucks for her. Parts and gas/oil roughly 150 bucks Now I just have to fine tune her and do some more polishing plastic then figure out a few mods.

[Mystic]

recap-----graveyard ressurection

[Mystic]

I love my Spree, I didn't realize how much fun it would be just to ride around on her. No gear shifting, barely using brakes, just cruising along as everyone stares O.o lol Not to mention I don't have to get any tags or have a special motorcycle license, I think TN does require you to have some form of valid driver's license unfortunately Rode her about 50 to 60 miles today up and down hills and across interstates without any problem. I have noticed it takes her a minute to kick in if stopped on an incline, turning onto another street. I may need to make sure the pilot is clean and adjust the carb but I am extremly satisfied with her performance.

[Mystic]

I drove to Mississippi today without any problems. A cop got behind me at one point and made me a little nervous so I gave my right hand signal and made a run for it lol He just kept on going. Needless to say when I got home I got to work on the turn signals. Had to weld one of the front brackets no big deal. I had to cut a few small piece of metal and drill holes to make a bracket to attach to the rack so it would bolt on, the rack I got was for an aero but I managed to make it work, blinkers and all This guy told me about a week ago he had one in his barn that he would dig out and give to me. Havent heard anything till today, his girlfriend came by and told me he was dropping it off at her house tomorrow and she would call me to pick it up I am excited about having a pair cause I like mine so much I dont want anyone else to ride her I am keeping my fingers crossed.

[Mystic]

I have been pretty busy lately rebuilding the top end on a 99 400ex but I have been riding my Spree to town and back just about everyday without any problems. I have been thinking about how I can cruise at 30-35 comfortably. I was considering upgrading to the 44bbk until I can find a motor to swap. Just out of curiosity with a 44mm bbk how many cc does that add to the engine size? I really like the fact I dont have to tag or anything

[Wheelman-111]

Greetings:

A whopping 56.9ccs, for a bit more than a 12% gain.

[Mystic]

Thanks Wheelman. Is there any way to gain any speed without altering the size of the engine such as gear ratio etc There are lots of hills around where I live so I bet I am stuck at 30.2 mph at top speed arent I ? lol Does anyone know how fast the af16 engine goes stock? I believe I saw a junk elite at the salvage yard when I was searching around for Spree parts. The owner let me look all over his entire yard and gave me tools to get my own parts I usually do complete restoration work instead of modification so this is a whole new area for me to investigate. Thanks for any info.

[Wheelman-111]

Greetings:

The One-Speed NQ/05 Spree requires a compromise. Any gearing increase to improve top end will hurt acceleration from a stop. The Variated engines don't exact as much of that compromise.

All the U.S. variated engines can muster 40 MPH in stock form, more or less, and do it with much better take-off. The AF16 can push 50 with 9.2:1 gears and a variator without any other mods, however. At least mine did. With the gears available for the SA/16 adapted to the SE/05 (TrafficJamz showed us the way...) there's no reason to believe it can't do the same.

The difference is in the ease of obtaining motor-modding parts for the 16 compared to the more limited Aftermarket for the 05. That and the stock 05 stroke is shorter, so displacement is practically limited to 65cc. 72cc up to 85cc are available for the 16, and with stroker cranks you can go all the way up to 120cc+.

[Mystic]

So with trafficjamz gears for the se05 and a different variator I could make the Spree do 40 top without any other mods and it still remain at 49cc? Also with the swap to af16 with 9.2:1 gears and different variator it will reach 50mph without any other mods or increase in total engine size? I want to keep the engine 50cc so I dont have to tag or register but still reach as close as i can get to minimum speed limit on the highway 45 mph. I will definately be looking at the gear ratio and variators in the mean time Wheelman. Bear with me I am new to engine modification but I am sure its not something I cannot grasp given knowledge and a little experimentation Funds are limited of course so I have to do a bit at a time lol I have been reading the threads from other people as far as swapping and modification I just need to look up the definition of some of the parts and terminology. I have all the tools I could ever need including a welder

[Wheelman-111]

Greetings:

I think you understood, but to be sure:

The Spree, with the Variatorless NQ/05 engine, will not likely see 40MPH under any circumstances short of big-blockage AND Taz's upgear setup. Even those who have exceeded 45 make no claim to doing it routinely, or attempting to cruise at that speed.

The VARIATED SE/05 is a different animal, just so you know. The SA/16 is another step up from that. Either one can be made to produce a usable, reliable 45 MPH at 50ccs with gears and good tuning. The SE/05s in my Flashes I and II approached 60 MPH with tall 7.83:1 primaries, and both could run 45 as long as there was fuel in the tank.

If you're up for the fun of build-it-yourself, you could start with Z50R Ghost's crank or my crank and cases.

[Mystic]

gotcha. The label on my engine is af05e is that the variatorless engine?

[Wheelman-111]

Greetings:

Inscrutable Hond-san inexplicably decided to call the NQ and the SE engines both "AF05E". As close as I can tell, "5" was his lucky number. They're totally different engines, and yet share the same engine CODE. Bore and stroke are the same, 41mm x 37.4mm, but nothing else is remotely similar. Could be your Spree was already swapped, but if the kickstarter swings forward, it's an NQ.

[Mystic]

(delete)

[Mystic]

yea the kickstarter lever is 2 pieces, swinging forward at the top. Just brain storming here but lets say I bought the crank and case from you, the upgears from taz and (edit lol)a variator then use everything else from my existing motor with proper tuning I should be able to reach 40 to 45 without too much strain on the engine ?