99' Bandit 250 coilpack and HT leads help

[mops]

thanks mikeyG

[F5 Dave]

Just to clear up, no vacuum hose on bikes. No distributor either if you're looking.
No safteybelts, no doors & more often than not, no 10 disc CD changer & pump'n stereo.

Repco HT leads will be silicon & that won't work well on a bike. Need to stick with copper leads. First thing is check the plug caps. They have a resistor in them & it will read about 5k to maybe 12kohm. If you tried from plug to plug on a dual coil then 30 would sound about right, though it varies. Buy a cheap multimeter from Dick Smith for about $0. It will be useful later in life & will have a manual. Suzuki coils aren't too flash. Just put some Honda ones on my RF as one coil was a bit dicky, though I pulled out the suzuki leads & plugged them into the Honda coils which do screw (clamp) up, unlike the Suz ones which are just a spike & a clip that breaks, maybe could be glued in place with Epoxy. Maybe. Dyna sell aftermarket coils.

HOWEVER. Pull the plugs & see if one of them (maybe the sidestand side) is darker than the others, If so then your carbs may be leaking petrol into that cylinder as the bike sits & fouling one or more plugs. A new plug will fix it, but not for long & plugs often don't clean properly despite appearance.

[Wasp]

cant wait till tommorow when i walk into the bike shop and suggest that they pay $1k to replace the coils on my bike

[mops]

so ? how did it go wasp ?

I'm thinking to replace spark plugs first.

colemans quoted me $20 per plug.....

anybody knows any other place to get them cheaper ?

[Wasp]

go who what me go where? my contact lenses havnt even arrived yet...

I'll go there tonight and let ya know, i bet they spew.

im also considering doing the plugs first. um they told me $7 a plug...

[mops]

hm........
maybe it's different model....




good luck !

[Phurrball]

Hmmm - $20 a plug sounds like iridium plugs. $7 sounds more like it. I just whacked a set of NGK CR8E plugs in my Bandit after fuel consumption deteriorated. Back to normal now.

I don't think I've been having the same extent of problems as you guys, but my bike doesn't like low revs (under 5K) that much either. It's OK, I just feel it should be better. Have been thinking I may need to bite the bullet sometime and get the carbs stripped and cleaned to return performance and efficiency.

I can't say I've ever looked that closely at the coilpacks to know if the HT leads are integrated or not.

Let me know how you both get on - I'm watching with interest.


Phurrball/Ross

[Wasp]

well he didnt quite hit the roof but i made sure we were outside just incase...

Says hes gonna look into finding some, they did have 3 bikes, mine and a green one, the other was used for parts (nicked the stock handle bars for mine) but sadly they've sold it

but yea he seemed quite happy to switch em over, not sure what he'll say if i mention new ones....

i bet the problem goes away gradually as we head back to summer too...

[Wasp]

right the bikes in the shop at the moment getting operated on (yeap at this very time), ill call them after lunch tommorow to see whats what...

im guessing theyre dynoing it and comparing it to the green one they've got there at the moment.

also when i was out riding last night with rg100 it was running fairly well, apparently it shoots massive red/blue flames out the back of the exhaust when it back fires too (not sure if thats a sign of something but it sounds cool to me , and yea i know the air filter can catch fire during a back fire so lets just hope it doesnt)

[mops]

allright, well... last night I insulated both coild from the fuel tank.

the thing is that coild are mounted on very close to the fuel tank. When i took off the tank I noticed deposits of white/yellowish powder on both coils where the leads joint the coils - from what i understand these were the signs of sparks arcing there. i whacked two thick rubber pads over suspicous spots and went for a ride. seemed much better, but still some missing (alltho much less than perviously)... this morning i've benn playing with choke and at some point it stopped missing alltogether and it work much better now...

I'll update if anything changes.

[Wasp]

oooh that sounds like a good idea, i think (no where near sure) that i had some yellow around the coil packs.

just called the bike shop, mech said he'd call me back later so i said i'd just call at 4, i asked if he'd found anything yet and he simply said it looks like an electrical problem.