33bhp restrictor kit

[onetwomany]

Heyas

I'm new enough round the forum, only got the bike last week ('99 Curvy 650) and she was running amazing!!! Until I gave her over to Dr. Death to put a restrictor kit in and completely crippled the bike :( I was almost crying the whole way home :(

Anyway, I got a chance to push the bike as much as I could with the restrictor and it's driving worse than my first bike (a 125 marauder!!!) ffs like... I'm wondering if somethings gone arseways with this. It sounds like it's running a lot rougher (it's a lot louder, more vibration from the engine, presumed it was just the way the kit would affect it) but when the bike topped out at 50mph I reckoned something's amiss. I was expecting the bike to be a lot slower, naturally, but when I got beaten off the lights by a feckin VESPA I was ready to get off the bike and walk home.

Can someone tell me what the story is with this, what kind of power/speed should I be getting out of it etc... The mechanic who did it is a sound enough guy and don't want to go back bitchin to him if this is normal. I was expecting a bit more power/top speed out of this thing though (hell it doesn't even have enough power to get into 6th! - also my rev counter is bolloxed so can't tell what rpm im getting sorry)...

Cheers;)

[Dangerous Dave]

What type of restrictor kit is fitted, F1 or the Suzuki one? Did it run ok for a while or has it been crap from the very beginning?

You'll get close to 100mph on a restricted bike, it feels strangled at high revs but until you ride full power you won't fully see.

[onetwomany]

Nope, bike was running (near) perfect from day one. (needs new tires and couple other things, last guy had it sittin up for ages, but the bike was running fine, had it up to bout 90mph in 5th! on the motorway before I lost my bottle lol.

Kit is FI, 2 washers on the carbs. Wondering if the viper can will make much(any) difference? Just reading on another thread here bout it and shouldnt make much difference. I'm feeling like I really got screwed over on this...

[Dangerous Dave]

A slip-on can will make no difference to the running of the engine.

Is it close to having or recently been serviced?

The things to check, obviously if it very cold then carb icing will start to creep in and if it is wet the front plug will start to get attacked by water. Does if feel or sound like it is running on one cylinder? The carbs may need balancing, or they may need to be fitted properly if they have come loose and broken the seal.

[yorkie_chris]

You've been f###ed. Hope they used lube.

Naked restricted will still indicate 95mph!

I would bet they haven't seated the carbs fully on top of the washers.

[onetwomany]

I'd have a look at that Dave but to put it like this...it was running fine at full power on Friday morning (had been serviced a couple months ago and sitting in a garage mostly since then, so I'm told), left it with yer man to restrict it, bang, I'm driving a pregnant hippo home. Cheers chris. yeh I reckon I'll be going back to give yer man a bollockin on monday morning. thanks.

[Alpinestarhero]

My faired sv, restricted, hit 105 mph on several occasions. Granted, no power above 8000 rpm, but it was still pretty alright.

The knackered rev counter indicates a problem with the front cylinder - start there methinks

[Dangerous Dave]

they may need to be fitted properly if they have come loose and broken the seal.
This should be the problem, but I would double check the front spark plug also.

[onetwomany]

My faired sv, restricted, hit 105 mph on several occasions. Granted, no power above 8000 rpm, but it was still pretty alright.

The knackered rev counter indicates a problem with the front cylinder - start there methinks

The clock was a bit dodgy before, there was a loose connection somewhere that made it keep comin on n then knocking off. wasnt affecting the engine, jsut didnt have time to go track down the problem. Since yer man had it, the speedo is working, rev counter is dead and the fuel light keeps flashing. I knew I'd regret restricting it, but it seems I'm regretting it for a whole new reason now :/

So whats the story with the front cylinder and th erev counter, I'm really not great when it comes to the workins of the bike so if you could elaborate a bit I'd appreciate it :) thanks

[yorkie_chris]

Front cylinder coil is connected to the rev counter.

When it came on and knocked off did that affect the motor?

[Biker Biggles]

Id take it straight back to whoever restricted it and get them to sort it.

[Dangerous Dave]

Sounds like when the tank was up/off the mechanic made a hash job of things. If the rev counter and engine didn't/don't happen at the same time then they are not linked to the same cause.

Sounds like the Carbs aren't seated properly, this is causing a leak and the engine to not run properly. The repetitive coil issue would be odds on as the fault with the rev counter, going by the other mechanical expertise it wasn't dealt with properly in the first place. The switch and wiring for the fuel light are under the tank and have most likely not been reconnected properly or damaged.

You need to take it back to the untrained monkey that did the job and get them to fix it, then never go back there again for a service.

[onetwomany]

Front cylinder coil is connected to the rev counter.

When it came on and knocked off did that affect the motor?

nope, but that was just a loose connection at either the block behind the dash or somewhere under the tank(so I'm told, havent looked yet) When it did come on though the rev counter was working fine and the fuel gauge wasnt flashing like it is now. Ok, so, totally different problem now I see.
thanks a mil for the feedback lads. I'll be back to yer man tomorrow morning so. cheers :)

[onetwomany]

rang the mech n he says even he felt it was dead to him when he gave it a test run... hopefully will get it sorted in next couple days.

Sounds like when the tank was up/off the mechanic made a hash job of things. If the rev counter and engine didn't/don't happen at the same time then they are not linked to the same cause.

Sounds like the Carbs aren't seated properly, this is causing a leak and the engine to not run properly. The repetitive coil issue would be odds on as the fault with the rev counter, going by the other mechanical expertise it wasn't dealt with properly in the first place. The switch and wiring for the fuel light are under the tank and have most likely not been reconnected properly or damaged.

You need to take it back to the untrained monkey that did the job and get them to fix it, then never go back there again for a service.

just wondering will this do damage to the engine next time I take it out?? Also what;s the reptetive coil issue? (like I said, I'm not much of a mechanic myself past changing the oil and lubin the chain :( )

Edit: never mind, if I understand correctly you're jsut saying the front cylinder isnt firing correctly cause the carbs arent sitting right meaning the coil won't work properly causing the rev counter to be dead? And the fuel light is just something plugged into the wrong connector?

[arcdef]

did this get sorted?

[onetwomany]

yeh, meant to post back here - couldnt find the thread. Yeh, got it sorted, not sure if it was chris or dave who said it first but they were right. The mechanic knocked out the connector to the coil when he put the tank on (clip on it is broken so it was only sittin on it) so bike was only firing on one cyclinder. Bike's goin grand now (I still find plenty of power in it even with the restrictor ^^ )

Thanks again for the replies lads :D

Dash is still knockin on n off though so there's another loose connection somewhere :s I'm thinking it might be the battery cause it feels fairly run down when starting the bike. Clock tends to kick in whenever I get over 5k revs - more voltage goin to the dash, could that be it? anyway, I'll try a new abttery and see if that fixes it. The rev counter wasn't working cause of the coil alright, this is a seperate problem now, hopefully tis only something small. Greased all the connectors under the tank with contact fluid and it worked grand for couple days. Anyone any other ideas where the prob could be?